konsol - JF00303896 CONSOLE （R32) (WiFi)

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Sayfa 1

Change for life

Service Manual

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Sayfa 2

Table of Contents

Part Ⅰ: Technical Information.......................................................................1
1. Summary.......................................................................................................................1
2. Specifications...........................................................................................................3

2.1 Specification Sheet...........................................................................................................3
2.2 Operation Characteristic Curve.........................................................................................7
2.3 Capacity Variation Ratio According to Temperature..........................................................7
2.4 Noise Curve......................................................................................................................8
3. Outline Dimension Diagram.........................................................................................9

3.1 Indoor Unit........................................................................................................................9
3.2 Outdoor Unit....................................................................................................................10
4. Refrigerant System Diagram.....................................................................12
5. Electrical Part.........................................................................................................13

5.1 Wiring Diagram...............................................................................................................13
5.2 PCB Printed Diagram......................................................................................................17
6. Function and Control.......................................................................................20

6.1 Remote Controller Introduction ......................................................................................20
6.2 GREE+ App Operation Manual.......................................................................................24
6.3 Ewpe Smart App Operation Manual................................................................................25
6.4 Brief Description of Modes and Functions......................................................................26

Part Ⅱ: Installation and Maintenance ..................................................28
7. Notes for Installation and Maintenance..........................................28
8. Installation.................................................................................................................32

8.1 Requirements for Electric Connection............................................................................32
8.2 Installation of indoor unit.................................................................................................32
8.3 Outdoor Unit Installation.................................................................................................38
8.4 Vacuum Pumping and Leak Detection............................................................................39
8.5 Check after Installation and Test Operation....................................................................39
9. Maintenance............................................................................................................40

9.1 Error Code List................................................................................................................40
9.2 Procedure of Troubleshooting.........................................................................................47
9.3 Maintenance Method for Normal Malfunction.................................................................60

Service Manual

Table of Contents

Sayfa 3

Service Manual

10. Exploded View and Parts List...............................................................62

10.1 Indoor Unit....................................................................................................................62
10.2 Outdoor Unit..................................................................................................................65
11. Removal Procedure........................................................................................71

11.1 Removal Procedure of Indoor Unit................................................................................71
11.2 Removal Procedure of Outdoor Unit.............................................................................75

Appendix:.........................................................................................................................90

Appendix 1: Reference Sheet of Celsius and Fahrenheit.....................................................90
Appendix 2: Configuration of Connection Pipe.....................................................................90
Appendix 3: Pipe Expanding Method....................................................................................91
Appendix 4: List of Resistance for Temperature Sensor.......................................................92

Table of Contents

Sayfa 4

Service Manual

Part Ⅰ: Technical Information

1. Summary

Indoor Unit

GEH12AA-K6DNA1A/I
GEH09AA-K6DNA1F/I
GEH18AA-K6DNA1F/I

Outdoor Unit

GEH09AA-K6DNA1F/O

GEH18AA-K6DNA1F/O

1
Technical Information

GEH12AA-K6DNA1A/O

Remote Controller

YAA1FB8(WiFi)

Sayfa 5

Model List:

No
Model
Product code
Indoor model
Indoor product 

Remote 
Controller
1
GEH09AA-K6DNA1F CV010002700 GEH09AA-K6DNA1F/I CV010N02700
GEH09AA-K6DNA1F/O
CV010W02700

2
CV010002701
CV010N02701
3
GEH12AA-K6DNA1A CV010002900 GEH12AA-K6DNA1A/I CV010N02900 GEH12AA-K6DNA1A/O
CV010W02900
4
CV010002901
CV010N02901
5
GEH18AA-K6DNA1F CV010002800 GEH18AA-K6DNA1F/I CV010N02800
GEH18AA-K6DNA1F/O 
CV010W02800
6
CV010002801
CV010N02801

2
Technical Information

Service Manual

code
Outdoor model
Outdoor product 

code

YAA1FB8(WiFi)

Sayfa 6

Service Manual

2. Specifications

2.1 Specification Sheet

Parameter
Unit
Value
Model 
GEH12AA-K6DNA1A
GEH09AA-K6DNA1F
Product Code
CV010002900/CV010002901
CV010002700/CV010002701

Rated Voltage
V ～
220-240
220-240
Rated Frequency
Hz
50
50
Phases
1
1
Power Supply Mode
Outdoor
Outdoor
Cooling Capacity(Min~Max)
W
3520(800~4400)
2700(700~3400)
Heating Capacity(Min~Max)
W
3800(1100~4400)
2900(600~3500)
Cooling Power Input(Min~Max)
W
1000(160~1500)
720(170~1300)
Heating Power Input(Min~Max)
W
960(165~1500)
730(130~1350)
Cooling Current Input
A
4.48
3.5
Heating Current Input
A
4.30
3.6
Rated Input
W
1500
1350
Rated Current
A
6.72
6.0
Air Flow Volume(SH/H/HM/M/LM/L/SL) 
m

Power 
Supply

3/h
600/520/480/440/400/360/280
500/430/410/370/330/280/250
Dehumidifying Volume
L/h
1.2
0.8
EER 
W/W
3.52
3.75
COP 
W/W
3.96
3.97
SEER 
W/W
7.0
7.2
SCOP(Average/Warmer/Colder)
W/W
4.1/5.3/-
4.0/5.3/-
Application Area
m

Indoor Unit Model
GEH12AA-K6DNA1A/I 
GEH09AA-K6DNA1F/I
Indoor Unit Product Code
CV010N02900/CV010N02901
CV010N02700/CV010N02701
Fan Type
Centrifugal
Centrifugal
Fan Diameter Length(DXL) 
mm
Φ370X80
Φ370X80
Cooling Speed
(SH/H/HM/M/LM/L/SL) 
r/min
750/650/600/550/500/450/350 
650/560/530/480/430 /370/320

Heating Speed
(SH/H/HM/M/LM/L/SL) 
r/min
750/650/600/550/500/450/350
650/560/530/480/430/370/320

Fan Motor Power Output
W
30
30 
Fan Motor RLA
A
0.15
0.15
Fan Motor Capacitor 
μF
/
/
Evaporator Form 
Aluminum Fin-copper Tube
Aluminum Fin-copper Tube
Evaporator Pipe Diameter
mm
Φ7
Φ7
Evaporator Row-fin Gap
mm
2-1.3
2-1.3
Evaporator Coil Length (LXDXW)  
mm
511X400X25.4
511X400X25.4
Swing Motor Model
MP24EB/MP24AE
MP24EB/MP24AE
Swing Motor Power Output
W
1.5/1.5
1.5/1.5
Fuse Current
A
3.15
3.15
Sound Pressure Level
(SS/H/MH/M/ML/L/SL) 
dB (A) 
Cooling:44/40/38/36/33/29/25
Heating:44/40/38/36/33/29/25

Indoor 

Unit

Cooling:39/36/33/31/29/26/23
Heating:38/36/32/30/28/25/22
Sound Power Level
(SS/H/MH/M/ML/L/SL) 
dB (A) 
Cooling:54/50/48/46/43/39/35
Heating:54/50/48/46/43/39/35

Cooling:50/48/45/44/42/38/34
Heating:50/48/45/44/42/38/34
Dimension (WXHXD) 
mm
700X600X215
700X600X215
Dimension of Carton Box (LXWXH)
mm
785X280X682
785X280X682
Dimension of Package(LXWXH)
mm
788X283X697
788X283X697
Net Weight  
kg
15.5
15.5
Gross Weight
kg
18.5
18.5

3
Technical Information

2
16-24
12-18

Sayfa 7

Outdoor Unit Model
GEH12AA-K6DNA1A/O
GEH09AA-K6DNA1F/O
Outdoor Unit Product Code
CV010W02900
CV010W02700  

Compressor Manufacturer
ZHUHAI LANDA COMPRESSOR 

CO., LTD 
Compressor Model
QXF-A102zE190B
QXF-A079zE190A
Compressor Oil
FW68DA
FW68DA
Compressor Type
Rotary
Rotary
Compressor LRA.  
A
/
/
Compressor RLA  
A
4.60 
4.6
Compressor Power Input
W
1023 
790 
Compressor Overload Protector
HPC115/95U1/KSD115ºC
HPC115/95U1/KSD115ºC
Throttling Method
Electron expansion valve
Electron expansion valve
Set Temperature Range 
ºC
16~30
16~30
Cooling Operation  Ambient Temperature 
Range 
ºC
-15~43
-15~43

Heating Operation  Ambient Temperature 
Range 
ºC
-22~24
-22~24

Condenser  Form 
Aluminum Fin-copper Tube
Aluminum Fin-copper Tube
Condenser  Pipe Diameter 
mm
Φ7.94
Φ7
Condenser  Rows-fin Gap
mm
1-1.4 
1-1.4 
Condenser  Coil Length (LXDXW)  
mm
731X19.05X550
710X19.05X508 
Fan Motor Speed
rpm
900
900 
Fan Motor Power Output
W
30
30 
Fan Motor RLA  
A
0.36
0.36
Fan Motor Capacitor 
μF
/
/
Outdoor Unit Air Flow Volume
m

Outdoor 

Unit

3/h
2200
1600
Fan Type
Axial-flow
Axial-flow
Fan Diameter
mm
Φ438
Φ400 
Defrosting Method
Automatic Defrosting
Automatic Defrosting
Climate Type
T1
T1
Isolation
I
I
Moisture Protection
IPX4
IPX4
Permissible Excessive Operating 
Pressure for the Discharge Side
MPa
4.3
4.3

Permissible Excessive Operating 
Pressure for the Suction Side
MPa
2.5
2.5

Sound Pressure Level (H/M/L) 
dB (A) 
52/-/-
49/-/-
Sound Power Level (H/M/L) 
dB (A) 
62/-/-
60/-/-
Dimension(WXHXD) 
mm
848X596X320
782X540X320
Dimension of Carton Box (LXWXH)
mm
878X360X630
820X355X580
Dimension of Package(LXWXH)
mm
881X363X645
823X358X595
Net Weight  
kg
30.5
27.5
Gross Weight
kg
33.5
30
Refrigerant 
R32
R32
Refrigerant Charge
kg
0.75
0.55

Connection Pipe Length
m
5
5
Connection Pipe Gas Additional Charge
g/m
16
16
Outer Diameter Liquid Pipe
mm
Φ6
Φ6
Outer Diameter Gas Pipe
mm
Φ9.52
Φ9.52
Max Distance Height
m
10
10
Max Distance Length
m
20
15
Note: The connection pipe applies metric diameter.

Connection 

Pipe

The above data is subject to change without notice. Please refer to the nameplate of the unit.

4
Technical Information

Service Manual

ZHUHAI LANDA COMPRESSOR 

CO.,LTD 

Sayfa 8

Service Manual

Parameter
Unit
Value
Model 
GEH18AA-K6DNA1F
Product Code
CV010002800/CV010002801

Rated Voltage
V ～
220-240
Rated Frequency
Hz
50
Phases
1
Power Supply Mode
Outdoor
Cooling Capacity(Min~Max)
W
5200(1260~6600)
Heating Capacity(Min~Max)
W
5330(1120~6800)
Cooling Power Input(Min~Max)
W
1550(380~2450)
Heating Power Input(Min~Max)
W
1500(350~2500)
Cooling Current Input
A
7.1
Heating Current Input
A
6.7
Rated Input
W
2500
Rated Current
A
11.1
Air Flow Volume(SH/H/HM/M/LM/L/SL) 
m

Power 
Supply

3/h
700/650/580/520/460/410/320
Dehumidifying Volume
L/h
1.8
EER 
W/W
3.4
COP 
W/W
3.55
SEER 
W/W
6.6
SCOP(Average/Warmer/Colder)
W/W
/
Application Area
m

Indoor Unit Model
GEH18AA-K6DNA1F/I
Indoor Unit Product Code
CV010N02800/CV010N02801
Fan Type
Centrifugal
Fan Diameter Length(DXL) 
mm
Φ370X80
Cooling Speed
(SH/H/HM/M/LM/L/SL) 
r/min
840/800/720/650/580/530/410
810/770/690/620/550/500/380
Heating Speed
(SH/H/HM/M/LM/L/SL) 
r/min
930/840/760/690/620/570/480
850/800/720/650/580/530/470
Fan Motor Power Output
W
30
Fan Motor RLA
A
0.15
Fan Motor Capacitor 
μF
/
Evaporator Form 
Aluminum Fin-copper Tube
Evaporator Pipe Diameter
mm
Φ7
Evaporator Row-fin Gap
mm
2-1.3
Evaporator Coil Length (LXDXW)  
mm
511X400X25.4
Swing Motor Model
MP24EB/MP24AE
Swing Motor Power Output
W
1.5/1.5
Fuse Current
A
3.15
Sound Pressure Level
(SS/H/MH/M/ML/L/SL) 
dB (A) 
47/45/43/41/38/37/32

Indoor 

Unit

Sound Power Level
(SS/H/MH/M/ML/L/SL) 
dB (A) 
57/55/53/51/48/47/42

Dimension (WXHXD) 
mm
700X600X215
Dimension of Carton Box (LXWXH)
mm
785X280X682
Dimension of Package(LXWXH)
mm
788X283X697
Net Weight  
kg
15.5
Gross Weight
kg
18.5

5
Technical Information

2
23-34

Sayfa 9

Outdoor Unit Model
GEH18AA-K6DNA1F/O
Outdoor Unit Product Code
CV010W02800
Compressor Manufacturer
ZHUHAI LANDA COMPRESSOR CO.,LTD 
Compressor Model
QXF-B141zF030A
Compressor Oil
68DA 
Compressor Type
Rotary
Compressor LRA.  
A
25
Compressor RLA  
A
6.5
Compressor Power Input
W
1410
Compressor Overload Protector
1NT11L-6233 or KSD115ºC or HPC115/95U1
Throttling Method
Electron expansion valve
Set Temperature Range 
ºC
16~30
Cooling Operation  Ambient Temperature 
Range 
ºC
-15~43

Heating Operation  Ambient Temperature 
Range 
ºC
-22~24

Condenser  Form 
Aluminum Fin-copper Tube
Condenser  Pipe Diameter 
mm
Φ7
Condenser  Rows-fin Gap
mm
2-1.4
Condenser  Coil Length (LXDXW)  
mm
851X38.1X660
Fan Motor Speed
rpm
800
Fan Motor Power Output
W
60
Fan Motor RLA  
A
0.4
Fan Motor Capacitor 
μF
/
Outdoor Unit Air Flow Volume
m

Outdoor 

Unit

3/h
3200
Fan Type
Axial-flow
Fan Diameter
mm
Φ520
Defrosting Method
Automatic Defrosting
Climate Type
T1
Isolation
I
Moisture Protection
IPX4
Permissible Excessive Operating 
Pressure for the Discharge Side
MPa
4.3

Permissible Excessive Operating 
Pressure for the Suction Side
MPa
2.5

Sound Pressure Level (H/M/L) 
dB (A) 
57/-/-
Sound Power Level (H/M/L) 
dB (A) 
65/-/-
Dimension(WXHXD) 
mm
965X700X396
Dimension of Carton Box (LXWXH)
mm
1026X455X735
Dimension of Package(LXWXH)
mm
1029X458X750
Net Weight  
kg
46
Gross Weight
kg
50.5
Refrigerant 
R32
Refrigerant Charge
kg
0.95

Connection Pipe Length
m
5
Connection Pipe Gas Additional Charge
g/m
16
Outer Diameter Liquid Pipe
mm
Φ6
Outer Diameter Gas Pipe
mm
Φ12
Max Distance Height
m
10
Max Distance Length
m
25
Note: The connection pipe applies metric diameter.

Connection 

Pipe

The above data is subject to change without notice. Please refer to the nameplate of the unit.

6
Technical Information

Service Manual

Sayfa 10

Service Manual

2.2 Operation Characteristic Curve

Cooling
Heating

11

11

220V

220V

10

• Conditions
  Indoor
: DB27˚C/WB19˚C
  Outdoor : DB35˚C/WB24˚C
  Indoor air flow : High
  Pipe length
: 5m 

10

9

9

8

8

7

7

Current (A)

Current (A)

230V

6

6

230V

5

5

240V

4

4

3

• Conditions
  Indoor
: DB20˚C/WB15˚C
  Outdoor : DB7˚C/WB6˚C
  Indoor air flow : High
  Pipe length
: 5m

3

240V

2

2

1

1

0

0

0
0
9
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
1
1
0
2
1
0
0
1
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
80

Compressor frequency(Hz)
Compressor frequency(Hz)

2.3 Capacity Variation Ratio According to Temperature

g
nilo
o
C

g
nit
a
e
H

140

140

120

Capacity ratio(%)

120

100

Capacity ratio(%)

100

80

80

Conditions
Indoor:DB20°C
Indoor air flow:Super High
Pipe length:5m

60

60

Condition
Indoor:DB27°C WB19°C
Indoor air flow: High
Pipe length:5m

40

40

20

20

0

0

-15
-10
-5
0
5
10
15
20
25
30
35
43

-22 
-15 
-10 
-7 
0 
2 
7 
15 
18 
21 
24 

Outdoor temp.(°C) 

Outdoor temp.(°C) 

7
Technical Information

Sayfa 11

2.4 Noise Curve

Outdoor side noise when blowing

Indoor side noise when blowing

52

50

12K
18K

51

40

50

Noise dB(A)

30

49

09K

48

20

47

SL
L
LM

M
HM
H
SH

46

15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

Indoor fan motor rotating speed

Compressor frequency(Hz)

8
Technical Information

Service Manual

Cooling

Heating

Sayfa 12

Service Manual

3. Outline Dimension Diagram

3.1 Indoor Unit

700
215

398
205

22

9
Technical Information

600

Unit:mm

Sayfa 13

3.2 Outdoor Unit

GEH12AA-K6DNA1A/O

257
257
780

320
320

GEH09AA-K6DNA1F/O

257

540

320

Unit:mm
Unit:mm

10
Technical Information

Service Manual

596

848

286

Unit:mm

540

712

782

286

510

Sayfa 14

Service Manual

GEH18AA-K6DNA1F/O

341

700

396

560
Unit:mm

11
Technical Information

892

965

368

Sayfa 15

4. Refrigerant System Diagram

 Indoor unit   
 Outdoor unit  

Suction
Heat 
exchanger
(evaporator)  
Heat 
exchanger
(condenser)  

Connection pipe specification:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)(09/12K)
Gas pipe:1/2" (16mm)(18K)

12
Technical Information

Service Manual

Gas pipe
side

 Valve

4-Way valve 

Discharge

Liquid pipe
side

 Valve

Strainer
Electron 
expansion 
valve

Strainer

COOLING 

HEATING 

Sayfa 16

Service Manual

5. Electrical Part

5.1 Wiring Diagram

● Instruction

Symbol
Symbol Color 
Symbol
Symbol Color 
Symbol
Name

WH
White
GN
Green
CAP
Jumper cap

YE
Yellow
BN
Brown
COMP
Compressor

RD
Red
BU
Blue
Grounding wire

YEGN
Yellow/Green
BK
Black
/
/

VT
Violet
OG
Orange
/
/

Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.

● Indoor Unit

GEH12AA-K6DNA1A/I(CV010N02900)  GEH18AA-K6DNA1F/I(CV010N02800)

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Technical Information

Sayfa 17

Service Manual

GEH09AA-K6DNA1F/I(CV010N02701)

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14
Technical Information

Sayfa 18

Service Manual

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15
Technical Information

Sayfa 19

Service Manual

GEH18AA-K6DNA1F/O

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16
Technical Information

Sayfa 20

Service Manual

5.2 PCB Printed Diagram

Indoor Unit

● Top view

8
9
10
11
12
13
14

13 Communication interface between 
indoor unit and outdoor unit 
14 Control interface of Down swing 
15 Wired controlled interface 
16 Needle stand of jumper cap
17 Interface of display board
1
2
3
4
6
7

● Bottom view

17
Technical Information

NO.
Name 
1
Interface of tube temperature sensor 

2
Interface of ambient temperature 
sensor 
3
Up swing interface 
4
Down swing interface 
5
WIFI interface 
6
Interface of EMC shielding wire 
7
DC motor interface 
8
Earthing wire of main board 
9
Terminal of live wire
10 Fuse

17

16

11 Terminal for health function
(only for the mode with this function)
12 Terminal of neutral wire

5

15

Sayfa 21

Outdoor Unit

09/12K

● Top view

3

2

1

● Bottom view

18
Technical Information

Service Manual

13

13

4

5

No.
Name 
1
Interface of compressor wire 
2
Reactor wiring terminal 2
3
Reactor wiring terminal 1
4
Terminal of chassis electric heater 
5
6
4-way valve terminal

7
Neutral wire
Grounding wire

8
Communication wire
9
Live wire
10 Terminal of electronic expansion valve
11 Interface of temperature sensor 
12 Overload interface of compressor 
13 Terminal of outdoor fan

6

7
8

9

10
11
12

Sayfa 22

Service Manual

GEH18AA-K6DNA1F/O

● Top view

1
2
10
3
5
4
8
7
9
6

● Bottom view

19
Technical Information

No
Name
Compressor wiring terminal for U V W

11

1

2 Terminal of system high pressure protection
3

Compressor overload protection terminal

4 Interface of temperature sensor 

5 Terminal of electronic expansion valve
Terminal of system low pressure protection

6

7

Terminal of outdoor fan

8 4-way valve terminal

12

9 Terminal of compressor electric heater

13

10

Terminal of compressor electric heater

11 Interface of electric heating belt of chassis 

14

12 Terminal of power supply live wire terminal
 

13
 
Interface of communication wire for indoor
unit and outdoor unit

14

Terminal of power supply earthing wire 

15 Terminal of power supply neutral wire 

15

Sayfa 23

6. Function and Control

6.1 Remote Controller Introduction 

Buttons on Remote Controller

ON/OFF button

1

+/- button

2

MODE button

3

FAN button 

4

SWING button 

5

1

I FEEL button 

6

2

/

button 

7

SLEEP button 

8

4
3

TEMP button 

9

5

6

QUIET button 

10

8
7

ClOCK button 

11

10
9

T-ON  T-OFF button 

/

12

12
11



TURBO button 

13

14
WiFi

13

WiFi button 

15

14

LIGHT button 

15

Introduction for Icons on Display Screen

I feel

Set fan speed

Send signal
Turbo mode

Quiet

Operation mode

Healthy mode
Scavenging functions

Cool mode
Auto mode

8
 heating function

Set temperature

Dry mode

X-FAN function

Fan mode

Heat mode

Set time

TIMER ON /TIMER OFF

Clock

Child lock
Up & down swing
Left & right swing

Sleep mode

Light

Temp. display type
:Set temp.

:Indoor ambient temp.

:Outdoor ambient temp.

Introduction for Buttons on Remote Controller

Note:
This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model 
doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.

ON/OFF button
1

Press this button to turn on the unit. Press this button again to turn off the unit.

2 - button

Press this button to decrease set temperature. Holding it down above 2 seconds rapidly decreases set temperature. In AUTO 

mode, set temperature is not adjustable.

+ button

Press this button to increase set temperature. Holding it down above 2 seconds rapidly increases set temperature. In AUTO 

mode, set temperature is not adjustable.

20
Technical Information

Service Manual

Sayfa 24

Service Manual

MODE button
3

Each time you press this button , a mode is selected in a sequence that goes from AUTO,COOL, DRY, FAN, and HEAT * , as the 

following:

*Note:Only for models with heating function.

After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit 

will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.(As 

for cooling only unit,it won’t have any action when it receives the signal of heating operation.)

4
FAN button 

This button is used for setting Fan Speed in the sequence that goes from AUTO,                                          to                 then back 

to Auto.

Auto

Medium speed
Low-Medium speed
Low speed

High speed
Medium-High speed

SWING button 
5

Press this button to set up &down swing angle, which circularly changes as below:

This remote controller is universal. If any command 
,
 or 
 is sent out, the unit will carry out the command as

indicates the guide louver swings as:

I FEEL button 
6

Press this button to turn on I FEEL function. The unit automatically adjust temperature according to the sensed temperature. 

Press this button again to cancel I FEEL function.

/
7
button 

Press this button to achieve the on and off of healthy and scavenging functions in operation status. Press this button for the 

fi rst time to start scavenging function; LCD displays "
". Press the button for the second time to start healthy and scavenging 

functions simultaneously; LCD displays "
" and "
". Press this button for the third time to quit healthy and scavenging 

functions simultaneously. Press the button for the fourth time to start healthy function; LCD display "
". Press this button again 
to repeat the operation above.

SLEEP button 
8

Press this button, can select Sleep 1 (      ), Sleep 2 (      ),Sleep 3 (      ) and cancel the Sleep,circulate between these, after 

electrifi ed, Sleep Cancel is defaulted.

Sleep 1 is Sleep mode 1, in Cool mode: after run for one hour in sleep mode, the main unit setting temperature will increase 1
, 

after 2 hours, the setting temperature will increase 2
, but the maximal setting temperature is 30
, then the unit will run at 

this setting temperature all along; In Heat mode: after run for one hour in sleep mode, the setting temperature will decrease 1 
 

after 2 hours the setting temperature will decrease 2
, but the minimal setting temperature is 16
, then the unit will run at this 

setting temperature all along.

Sleep 2 is sleep mode 2, that is air conditioner will run according to the presetting a group of sleep temperature curve.

Sleep 3- the sleep curve setting under Sleep mode by DIY:

21
Technical Information

,
,

,
,

Sayfa 25

(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote control enters into user individuation sleep setting status, at this 

time, the time of remote control will display "1hour ",the setting temperature "88" will display the corresponding temperature of last 

setting sleep curve and blink (The fi rst entering will display according to the initial curve setting value of original factory);

(2) Adjust "+" and "-" button, could change the corresponding setting temperature, after adjusted, press "Trubo "button for confi rmation;

(3) At this time, 1hour will be automatically increased at the timer postion on the remote control, (that are "2hours " or "3hours " or 

"8hours "), the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink;

(4) Repeat the above step (2) 
 (3) operation, until 8hours temperature setting fi nished,sleep,curve setting fi nished, at this time, the 

remote control will resume the original timer display;temperature display will resume to original setting temperature.

Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired:

The user could accord to sleep curve setting method to inquire the presetting sleep curve,enter into user individuation sleep setting 

status, but do not change the temperature, press "Turbo" button directly for confirmation.Note: In the above presetting or enquiry 

procedure,if continuously within10s, there is no button pressed, the sleep curve setting within 10s, there is no button pressed, the sleep 

curve setting status will be automatically quit and resume to display the original displaying. In the presetting or enquiry procedure, press 

"ON/OFF" button, "Mode" button, "Timer"button or "Sleep" button, the sleep curve setting or enquiry status will quit similarly.

TEMP button 
9

Press this button, you can see indoor set temperature, indoor ambient temperature on indoor unit’s display. The setting on remote 

controller is selected circularly as below:

no display

When selecting "      " with remote controller or no display, temperature indicator on indoor unit displays set temperature; When 

selecting "      " with remote controller, temperature indicator on indoor unit displays indoor ambie nt temperature; 5s later or within 5s 

it receives other remote control signal that will return to display the setting temperature.

Caution:

     This model hasn't outdoor ambient temperature display function. While remote controller

     can operate "      " and indoor unit displays set temperature.

     It’s defaulted to display set temperature when turning on the unit.

     Only for the models with temperature indicator on indoor unit.

QUIET button 
10
Auto

Press this button, the Quiet status is under the Auto Quiet mode (display "       "signal )and Quiet mode (display "      " signal) and Quiet 

OFF (there is no signal of "      "displayed),after powered on, the Quiet OFF is defaulted. Note: the Quiet function cannot be set up in 

Fan and Dry mode;Under the Quiet mode (Display"       " Under the Quiet mode) the fan speed is not available.

11
ClOCK button 

Press CLOCK button,blinking. 
Within 5 seconds, pressing + or - button adjusts the present time. Holding down either button above 
2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During blinking 

after setting, press CLOCK button again to confi rm the setting, and 
 then will be constantly displayed.

T-ON  T-OFF button 
12
/

Press T-ON button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again.

After press of this button,       disappears and "ON "blink s . 00:00 is displayed for ON time setting. Within 5 seconds, press + or - button 

to adjust the time value. Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes 

the time setting by 1 minute and then 10 minutes. Within 5 Seconds after setting, press TIMER ON button to confi rm.

Press T-OFF button to initiate the auto-off timer. To cancel the auto-timer program, simply press the button again.TIMER OFF setting is 

the same as TIMER ON.

TURBO button 
13

Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time. 

In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super 

high fan speed.

22
Technical Information

Service Manual

Sayfa 26

Service Manual

WiFi button 
14

Press " WiF "i button to turn on or turn off WiFi function. When WiFi function is turned on, the " W i F i " icon will be displayed on remote 
controller; Under status of unit off, press "MODE" and "W i F i " " buttons simultaneously for 1s, WiFi module will restore to factory 
default setting.
● This function is only available for some models.

15 LIGHT button 

Press LIGHT button to turn on the display's light and press this button again to turn off the display 's light. If the light is turned on ,       is 

displayed. If the light is turned of

f,         disappears.

If “H1” is displayed on the remote controller while it’s not operated by the professional person/after-sales person, it belongs to the 
misoperation. 
Please operate it as below to cancel it.Under the OFF status of remote controller, hold the Mode button for 5s to cancel “H1” display.
Note:
● If remote controller displays “H1”, it belongs to the normal function reminder. If the unit is defrosting under heating mode, it operates 
according to H1 defrosting mode. “H1” won’t be displayed on the panel of indoor unit;
● Once you set H1 mode, if you turn off unit by remote controller, H1 will display 3 times on the remote controller and then disappear;
● Also, when you set  H1 mode, when you change to heating mode, H1 will display 3 times on the remote controller and then disappear.

Combination of "+" and "-" buttons: About lock

Press "+" and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
is displayed. In this case, 

pressing any button, 
blinks three times.
Combination of "MODE" and "-" buttons:About switch between Fahrenheit and centigrade

At unit OFF, press "MODE" and "-" buttons simultaneously to switch between °C and °F.

Combination of "TEMP" and "CLOCK" buttons:About Energy-saving Function

Press "TEMP" and "CLOCK" simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays 

"SE". Repeat the operation to quit the function.

Combination of "TEMP" and "CLOCK" buttons:About 8°C Heating Function

Press "TEMP" and "CLOCK" simultaneously in HEAT mode to start 8°C Heating Function Nixie tube on the remote controller displays 

"
" and a selected temperature of "8°C".(46°F if Fahrenheit is adopted). Repeat the operation to quit the function.
About Back-lighting Function

The unit lights for 4s when energizing for the 

fi rst time, and 3s for later press.

Replacement of Batteries in Remote Controller

1.Press the back side of remote controller marked with“ 
 ”as shown in the fi g, and then push out the cover
of battery box along the arrow direction.

2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of “+” polar and “-“ polar are correct.
3. Reinstall the cover of battery box.

Note:
● During operation, point the remote control signal sender at the receiving window 
on indoor unit.
● The distance between signal sender and receiving window should be no more than 
8m, and there should be no obstacles between them.
● Signal may be interfered easily in the room where there is fluorescent lamp or 
wireless telephone; remote controller should be close to indoor unit during operation.
● Replace new batteries of the same model when replacement is required.
● When you don’t use remote controller for a long time, please take out the batteries.
● If the display on remote controller is fuzzy or there’s no display, please replace 
batteries.

23
Technical Information

battery

reinstall

remove

Cover of battery box

Sayfa 27

6.2 GREE+ App Operation Manual

Control Flow Chart

Home Wi-Fi
Gree

intelligent

home
appliances

Home wireless router

Operating Systems

Requirement for User's smart phone:

iOS system
Support iOS7.0 and 
above version 

Download and installation

GREE+ App Download Linkage 

Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the 
account and add the device to achieve long-distance control and LAN control of Gree smart home appliances. 
For more information, please refer to "Help" in App.

24
Technical Information

Service Manual

Internet

Gree Cloud

Cellular/
Other Wi-FI

Home Wi-Fi

GREE+ APP

Android system
Support Android 4.4 and 
above version

Sayfa 28

Service Manual

6.3 Ewpe Smart App Operation Manual

Control Flow Chart

intelligent

Home Wi-Fi

home
appliances

Home wireless router

Operating Systems

Requirement for User's smart phone:

iOS system
Support iOS7.0 and 
above version 

Download and installation

App Download Linkage 

Scan the QR code or search "Ewpe Smart" in the application market to download and install it. When "Ewpe Smart" App is installed, 
register the account and add the device to achieve long-distance control and LAN control of smart home appliances. 
For more information, please refer to "Help" in App.

25
Technical Information

Internet

Cloud

Cellular/
Other Wi-FI

Home Wi-Fi

APP

Android system
Support Android 4.4 and 
above version

Sayfa 29

6.4 Brief Description of Modes and Functions

1. Cooling mode
(1) Under this mode, the fan and the up swing will operate at setting status. The temperature setting range is 16~30ºC.
(2) The unit is stopped because of malfunction of outdoor unit or protection. The indoor unit keeps original operation status and the
error code is displayed.
(3) Indoor unit is stopped due to mode shock.
2. Drying mode
(1) Under this mode, the fan operates at low speed and the swing operates at setting status. The temperature setting range is
16~30ºC.
(2) The unit is stopped because of malfunction of outdoor unit or protection. The indoor unit keeps original operation status and the
error code is displayed.
3. Heating mode
(1) Under this mode, the temperature setting range is 16~30ºC.
(2) Working condition and process for heating
When the unit is turned on under heating mode, the indoor unit turns to cold air prevention status. When the unit is turned off and the
indoor unit has been started up before, the indoor unit blows the residual heat.
(3) Protection function: When the compressor is stopped due to malfunction under heating mode, the indoor unit blows the
residual heat.
(4) Blow residual heat
When the unit stops operation as it reaches the temperature point, indoor unit will continue to run for 60s. The fan speed cant be
switched during blowing residual heat period. The upper horizontal louver will turn to the defaulted position in cooling. When the unit
operates under heating mode or auto heating mode, compressor will be turned on and the corresponding electric expansion valve is
more than 65 and the unit stops operation during the operation status of indoor unit. The upper horizontal louver will turn to the
defaulted position in heating mode. The indoor unit operates at low speed for 10s and then the unit stops operation.
(5) Defrosting, oil-returning
As it received the signal of defrosting and oil-returning from outdoor unit, the upper horizontal louver will turn to the minimum angle in
cooling. 10s later, the in door fan stop operation. During defrosting and oil-returning process and they are quitted within 5mins, all
malfunctions for indoor tube temperature sensor wont be detected.
4. Working process for AUTO mode (Mode judgment will be performed every 30s)
Under AUTO mode, standard cooling Tpreset=25ºC (77ºF), standard heating Tpreset=20ºC (68ºF), and standard fan Tpreset= 25ºC
(77ºF).
(1) When Tamb≥26ºC (79ºF), the unit operation in cooling mode;
(2) Heating pump unit: When Tamb≤19ºC (66ºF), the unit operates in heating mode;
(3) Cooling only unit: Tamb≤19ºC (66ºF), the unit operates in fanmode;
(4) When 19ºC<Tindoor amb.<26ºC, if it turns to auto mode as the unit is turned on for the first time the unit will operates at auto fan
mode. If it switch to auto mode from other modes, the unit will keep previous operation mode (when it turns to dry mode, the unit
operates at auto fan mode).
(5) Protection function
Protection function is the same as that in cooling or heating mode.
5. Fan mode
Under fan mode, only indoor fan and swing operates. When it operates at auto fan speed, it will operate according to auto fan speed
condition in cooling.
6. Mode shock
If the mode shock is 1 which is received by indoor unit from outdoor unit, the loads of indoor unit (indoor unit, auxiliary heating,swing)
stop operation and the error code is displayed. The mode sent to outdoor unit is still remote control receiving mode. The unit will be
turned off during mode shock.
If timer ON is reached, and the mode shock is 1 which is received by indoor unit from outdoor unit, the loads of indoor unit (indoor 
unit,auxiliary heating, swing) stop operation and the error code is displayed. The mode sent to outdoor unit is still remote control receiving 
mode.
7. Other control
7.1 Buzzer
Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep.
7.2 Auto button
If this button is pressed, the unit will operate in AUTO mode and indoor fan will operate at auto speed; meanwhile, the swing motor
operates. Press this button again to turn off the unit.
7.3 8 ºC heating function
Under heating mode, press TEMP+CLOCK buttons simultaneously. Under this mode, “cold air prevention protection” will be shielded.

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Sayfa 30

Service Manual

7.4 I FEEL function
When I FEEL command is received, the controller will operate according to the ambient temperature sent by the remote controller (For
defrosting and cold blow prevention, the unit operates according to the ambient temperature sensed by the air conditioner). The 
remote controller will send ambient temperature data to the controller every 10min. When the data has not been received after 
11mins,the unit will operate according to the temperature sensed by the air conditioner. If I FEEL function is not selected, the ambient
temperature will be that sensed by the air conditioner. I FEEL function will not to be memorized.
7.5 Timer function
General timer and clock timer functions are compatible by equipping remote controller with different functions.
(1)General Timer
Timer ON can be set at unit OFF. If selected ON time is reached, the unit will start to operate according to previous setting status. 
Time setting range is 0.5-24hr in 30-minute increments.
Timer OFF can be set at unit ON. If selected OFF time is reached, the unit will stop operation. Time setting range is 0.5-24hr in
30-minute increments.
(2)Clock Timer 
Timer ON
 If timer ON is set during operation of the unit, the unit will continue to operate. If timer ON is set at unit OFF, upon ON time reaches 
the unit will start to operate according to previous setting status. 
Timer OFF 
If timer OFF is set at unit OFF, the system will keep standby status. If timer OFF is set at unit ON, upon OFF time reaches the unit 
will stop operation. 
Timer Change 
Although timer has been set, the unit still can be turned on/off by pressing ON/OFF button of remote controller. You can also set 
the timer once again, and then the unit will operate according to the last setting. If timer ON and timer OFF are set at the same time 
during operation of the unit, the unit will keep operating at current status till OFF time reaches. If timer ON and timer OFF are set at 
the same time at unit OFF, the unit will keep stop till ON time reaches. In the future’s every day, the system will operate according to 
presetting mode till OFF.
7.6 Sleep function
This mode is only valid in cooling and heating modes. The unit will select proper sleep curve to operate according to different set
temperature.
7.7 Compulsory defrosting function
When the unit is turned on in heating by remote controller and the set temperature is 16

oC, press “+,-,+,-,+,-”continuously within 5s, 
the indoor unit turns to compulsory defrosting setting and it will send compulsory defrosting mode to outdoor unit.
When indoor unit received the compulsory defrosting signal from outdoor unit, the indoor unit will quit from the compulsory defrosting
setting and it will cancel to send compulsory defrosting mode to outdoor unit.
7.8 Refrigerant recovery function
Turn to Freon recovery mode: After the unit is energized for 5min, and the unit is turned on at 16ºC under cooling mode, press light
button on remote controller for 3 times successively within 3s to turn to Freon recovery mode. Fo is displayed and it will send Freon
recovery mode to outdoor unit.
Quit from Freon recovery mode:After it turns to Freon mode, if it receives any signal from remote controller or it turns to Freon
recovery mode for 25 mins, it will quit from Freon recovery mode.
Turn to the action for Freon recovery mode: indoor unit will be turned on in cooling mode. The fan speed is super-high fan speed and
the set temperature is 16

oC. The horizontal louver will turn to the minimum operation angle.
Quit the action for Freon recovery mode: The indoor fan operates at the previous set status by remote controller.
7.9 Pilot run function
When the set temperature is 30

oC under cooling mode, press “+,-,+,-,+,-”continuously within 5s, the indoor unit turns to pilot run 
setting mode and it will send pilot run mode to outdoor unit.
Pilot run mode: it operates under cooling mode and “dd” is displayed.
Quit the pilot run mode and indoor unit cancels “dd” display. If it receives “wrong wire connection of malfunction of expansion valve”
from outdoor unit, “dn” will be displayed.

27
Technical Information

Sayfa 31

Part Ⅱ: Installation and Maintenance 

7. Notes for Installation and Maintenance

Safety Precautions: 
Important!

10. If the power cord or connection wire is not long enough, 
please get the specialized power cord or connection wire 
from the manufacture or distributor. Prohibit prolong the wire 
by yourself.
11. For the air conditioner without plug, an air switch must 
be installed in the circuit. The air switch should be all-pole 
parting and the contact parting distance should be more than 
3mm.
12. Make sure all wires and pipes are connected properly and 
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes, 
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specification 
if it is burnt down; dont replace it with a cooper wire or 
conducting wire.
15. If the unit is to be installed in a humid place, the circuit 
breaker must be installed.

Please read the safety precautions carefully before instal­
lation and maintenance.
The following contents are very important for installation 
and maintenance.

Please follow the instructions below.

●The installation or maintenance must accord with the 
instructions.
●Comply with all national electrical codes and local 
electrical codes.
●Pay attention to the warnings and cautions in this 
manual.
●All installation and maintenance shall be performed by 
distributor or qualified person.
●All electric work must be performed by a licensed 
technician according to local regulations and the 
instructions given in this manual.
●Be caution during installation and maintenance. Prohibit 
incorrect operation to prevent electric shock, casualty and 
other accidents.

Installation Safety Precautions:

1. Select the installation location according to the require­
ment of this manual.(See the requirements in installation 
part)
2. Handle unit transportation with care; the unit should not 
be carried by only one person if it is more than 20kg.
3. When installing the indoor unit and outdoor unit, a suffi­
cient fixing bolt must be installed; make sure the installation 
support is firm.
4. Ware safety belt if the height of working is above 2m.
5. Use equipped components or appointed components dur­
ing installation.
6. Make sure no foreign objects are left in the unit after fin­
ishing installation.

Warnings

Electrical Safety Precautions:

1. Cut off the power supply of air conditioner before 
checking and maintenance.
2. The air condition must apply specialized circuit and 
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable 
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly 
during installation and maintenance.
5. Have the unit adequately grounded. The grounding 
wire cant be used for other purposes.
6. Must apply protective accessories such as protective 
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of 
power supply must be corresponding to the live wire, 
neutral wire and grounding wire of the air conditioner.  
8. The power cord and power connection wires cant be 
pressed by hard objects.
9. If power cord or connection wire is broken, it must be 
replaced by a qualified person.

Improper installation may lead to fire hazard, explosion, 
electric shock or injury.

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Sayfa 32

Service Manual

Safety Precautions for Installing and Relocating the Unit:

To ensure safety, please be mindful of the following precautions. 

Warnings

1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the 
specified refrigerant.
Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in 
injury.
2.When installing or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or 
unqualified refrigerant.
Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even series safety accident.
3.When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling 
mode.Then, fully close the valve at high pressure side (liquid valve).About 30-40 seconds later, fully close the valve at low 
pressure side (gas valve), immediately stop the unit and disconnect power. Please note that the time for refrigerant recovery 
should  not exceed 1 minute. 
If refrigerant recovery takes too much time, air may be sucked in and cause pressure rise or compressor rupture, resulting in injury. 
4.During refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before 
detaching the connection pipe. 
If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure 
rise or compressor rupture, resulting in injury.
5.When installing the unit, make sure that connection pipe is securely connected before the compressor starts running.
If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure 
rise or compressor rupture, resulting in injury.
6.Prohibit installing the unit at the place where there may be leaked corrosive gas or flammable gas.
If there leaked gas around the unit, it may cause explosion and other accidents.
7.Do not use extension cords for electrical connections. If the electric wire is not long enough, please contact a local service 
center authorized  and ask for a proper electric wire.
Poor connections may lead to electric shock or fire.
8.Use the specified types of wires for electrical connections between the indoor and outdoor units. Firmly clamp the wires so 
that their terminals receive no external stresses.
Electric wires with insufficient capacity, wrong wire connections and insecure wire terminals may cause electric shock or fire.

Safety Precautions for Refrigerant

●To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the 
fluoride R32,which is specially cleaned. The refrigerant is flammable and inodorous. Furthermore, it can leads to explosion 
under certain conditions. But the flammability of the refrigerant is very low. It can be ignited only by fire.
●Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere. The influence upon 
the greenhouse effect is also lower. R32 has got very good thermodynamic features which lead to a really high energy 
efficiency. The units therefore need a less filling.

WARNING:
●Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacture.
Should repair be necessary,contact your nearest authorized Service Centre. Any repairs carried out by unqualified 
personnel may be dangerous. The appliance shall be stored in a room without continuously operating ignition sources. (for 
example:open flames , an operating gas appliance or an operating electric heater.)
●Do not pierce or burn.
●Appliance shall be installed, operated and stored in a room with a floor area larger than “X”m
2 (see table a).(only applies to 
appliances that are not fixed appliances).
●Appliance filled with flammable gas R32. For repairs, strictly follow manufacturer’s instructions only.Be aware that 
refrigrants not contain odour.
●Read specialists manual.

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Installation and Maintenance

Sayfa 33

Safety Operation of Flammable Refrigerant

Qualification requirement for installation and maintenance man

●All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the 
authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry. If it needs 
other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualification for 
using the flammable refrigerant.
●It can only be repaired by the method suggested by the equipments manufacturer.

Installation notes

●The air conditioner is not allowed to use in a room that has running fire (such as fire source,working coal gas ware, 
operating heater).
●It is not allowed to drill hole or burn the connection pipe.
●The air conditioner must be installed in a room that is larger than the minimum room area.
The minimum room area is shown on the nameplate or following table a.
●Leak test is a must after installation.
table a - Minimum room area(m

2)

Charge amount (kg) ≤1.2 1.3 1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5

floor location

4
14.5 16.8 19.3 22 24.8 27.8 31 34.3 37.8 41.5 45.4 49.4 53.6

Minimum

room

4

window mounted

5.2 6.1
7
7.9
8.9
10 11.2 12.4 13.6
15
16.3 17.8 19.3

2
area( m  )

4
4
4

4
4
4
4
4

wall mounted

4

4.2
4.6
5
5.5
6

4

4
4
4

4
4
4
4
4

4
4
4
4
4

ceiling mounted

Maintenance notes

●Check whether the maintenance area or the room area meet the requirement of the nameplate.
— Its only allowed to be operated in the rooms that meet the requirement of the nameplate.
●Check whether the maintenance area is well-ventilated.
— The continuous ventilation status should be kept during the operation process.
●Check whether there is fire source or potential fire source in the maintenance area.
— The naked flame is prohibited in the maintenance area; and the “no smoking” warning board should be hanged.
●Check whether the appliance mark is in good condition.
— Replace the vague or damaged warning mark.

Welding

●If you should cut or weld the refrigerant system pipes in the process of maintaining, please follow the steps as below:
a. Shut down the unit and cut power supply
b. Eliminate the refrigerant
c. Vacuuming
d. Clean it with N2 gas
e. Cutting or welding
f. Carry back to the service spot for welding
●Make sure that there isnt any naked flame near the outlet of the vacuum pump and its well-ventilated.
●The refrigerant should be recycled into the specialized storage tank.

Filling the refrigerant

●Use the refrigerant filling appliances specialized for R32. Make sure that different kinds of refrigerant wont contaminate with 
each other.
●The refrigerant tank should be kept upright at the time of filling refrigerant.
●Stick the label on the system after filling is finished (or havent finished).
●Dont overfilling.
●After filling is finished, please do the leakage detection before test running; another time of leak detection should be done 
when its removed.

Safety instructions for transportation and storage

●Please use the flammable gas detector to check before unload and open the container.
●No fire source and smoking.
●According to the local rules and laws.

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Installation and Maintenance

Service Manual

Sayfa 34

Service Manual

Main Tools for Installation and Maintenance

1. Level meter, measuring tape

4. Electroprobe

7. Electronic leakage detector

10. Pipe pliers, pipe cutter

31
Installation and Maintenance

2. Screw driver

3. Impact drill, drill head, electric drill



5. Universal meter

6. Torque wrench, open-end wrench, inner 
hexagon spanner

8. Vacuum pump

9. Pressure meter

11. Pipe expander, pipe bender

12. Soldering appliance, refrigerant container

Sayfa 35

Service Manual
8. Installation

8.1 Requirements for Electric Connection

1. Safety Precaution
(1) Must follow the electric safety regulations when installing the unit.
(2) If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to 
(avoid a hazard.
(3) According to the local safety regulations, use qualified power supply circuit and air switch.
(4) A air switch having a contact separation of at least 3mm in all poles should be fixed in fixed wiring.
(5) The appliance shall be installed in accordance with national wiring regulation.
(6) The air switch must have the functions of magnetic tripping and heat tripping in order to prevent short circuit or overload. Please 
install the air switch with suitable capacity according to the sheet below.
(7) Make sure the power supply matches with the requirement of air conditioner.Unstable power supply or incorrect wiring may result 
in electric shock, fire hazard or malfunction. Please install proper power supply cables before using the air conditioner.
(8) Properly connect the live wire, neutral wire and grounding wire of power socket.
(9) Be sure to cut off the power supply before proceeding any work related to electric safety.
(10) Do not put through the power before finishing installation.

2. Grounding Requirement
(1) The air conditioner is first class electric appliance. It must be properly grounded with specialized grounding device by a 
professional. Please make sure it is always grounded effectively, otherwise it may cause electric shock.
(2) The yellow-green wire in air conditioner is grounding wire, which can't be used for other purposes.
(3) The grounding resistance should comply with national electric safety regulations.

8.2 Installation of indoor unit

1. Selection of Installation Location

(1) Such a place where cool air can be distributed throughout the 
room.
(2) Such a place where condensation water is easily drained out.
(3) Such a place that can handle the weight of indoor unit.
(4) Such a place which has easy access for maintenance.
(5) The appliance shall not be installed in the laundry.

There are 2 styles of installation
● Ceiling type    ● Floor type
Each type is similar to the other as follows:
The indoor unit should be sited in a place where:
(1) The restrictions on installation specified in the indoor unit 
installation drawings are met.
(2) Both air intake and exhaust have clear paths met.
(3) The unit is not in the path of direct sunlight.
(4) The unit is away from the source of heat or steam.
(5) There is no source of machine oil vapour (this may shorten 
indoor unit life).
(6) Cool(warm) air is circulated throughout the room.
(7) The unit is away from electronic ignition type fluorwscent 
lamps (inverter or rapid stert type) as they may shorten the remote 
controller range.
(8) The unit is at least 1 metre away from any television or radio 
set(unit may cause interference with the picture or sound).

32
Installation and Maintenance

Air-Conditioner
Air Switch Capacity
09K
10A
12/18K
16A

Exposed

Half conceated
Concealed

Mounting plate

Molding

Grid(field supply)

Floor lnstallation
Wall Installation

Location for securing the installation panel.

700

200

120
220

644

120
220

570

600

170

30

160

Unit: mm

30

Sayfa 36

Service Manual

Cautions for installation where air conditioner troubleis liable 
tooccur.
Where there is toomuch of oil area.
Where it is acid base area.
Where there is irregular electrical supply.

Schematic drawing of hooks:

2. Indoor Unit Installation Drawings
The indoor unit may be mounted in any of the three styles shown 
here.
Console unit shall be installed on the ground or the position where is 0.3m 
from the floor.

200mm

70mm
or more

Installtion
paper plank

50mm
or more

50mm
or more

3. Refrigerant Piping

(1) Drill a hole ( 65mm in diameter ) in the spot indicated by 
 the symbol in the illustration ad below .
(2) The location of the hole is different depending on  which side of the pipe is taken out .
(3) For piping ,see6.Connecting the refrigerant pipe , under Indoor Unit Installation.
(4) Allow space around the pipe for a easier  indoor unit pipe connection.

Wall

45

45
60

g
nipip
 
m
o
tt
o
b
 t
h
gi
R
g
nipip
 
m
o
tt
o
b
 tf
e
L

75

75

45

75

75

Left back piping

Right back piping
Left/right piping

45

45

Unit: mm

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Installation and Maintenance

Sayfa 37

Service Manual

CAUTION

Min.allowable length
●The suggested shortest pipe length is 2.5m,in order to avoid noise from the outdoor unit and vibration. (Mechanical noise and 
vibration may occur depending on  how the unit is installed and the environment in which it is  used.)
●See the installation manual for the outdoor unit for the maximum pipe length.
●For multi-connections ,see the installation manual for the multi-outdoor unit.

wall

350

Refrigerant pipe

45

Unit: mm

75
Floor

4. Boring a Wall Hole and Installing Wall Embedded Pipe
● For walls containing metal frame or metal board ,be sure to use a wall embedded
pipe and wall cover in the feed-through hole to
● Be sure to caulk the gaps around the pipes with caulking material to prevent
water leakage.
(1) Bore a feed-through hole of 55mm in the wall so it has a down slope toward the
outside.
(2) Insert a wall pipe into the hole.
(3) Insert a wall cover into wall pipe .
(4) After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap with 
putty.

Inside
Outside

Caulking
Wall embedded pipe 
(field supply)

Φ55 mm

Wall hole cover
(field supply)

Wall embedded pipe 
(field supply)

5. Drain Piping
(1) Use commercial regid polyvinyl chloride pipe general VP 20 pipe, outer diameter 26mm, inner diameter 20mm for the drain pipe.
(2)The drain hose (outer diameter 18mm at connecting end, 220mm long)is supplied with the indoor unit. Prepare the drain pipe picture below 
position.
(3) The drain pipe should be inclined downward so that water will flow smoothly without any accumulation.(Should not be trap.)
(4) Insert the drain hose to this depth so it wont be pulled out of the drain pipe.
(5) Insulate the indoor drain pipe with 10mm or more of insulation material to prevent condensation.
(6) Remove the air filters and pour some water into the drain pan to check the water flows smoothly.

Must be no trap

150

Do not touch water

100

100
Drain hose

50 or more

Vinyl chloride
drain pipe

Reducer

Unit: mm

34
Installation and Maintenance

Sayfa 38

Service Manual

3 tabs

6. Installing Indoor Unit
Preparation
●Open the front panel, remove the 4 screws and dismount
the front grille while pulling it forward.
●Follow the arrows to disengage the clasps on the
front case to remove it.
●Follow the procedure below when removing the slit portions.

Casing

Front
grille

Front panel

Remove
front grille

■For Moldings
●Remove the pillars. (Remove the slit portions on the
bottom frame using nippers.)

Open the front panel

Remove 4 screws

■For Side Piping
●Remove the pillars.
(1) Remove the 7screws.
(2) Remove the upper casing (2 tabs).
(3) Remove the left and right casings (2 tabs on eachside ).
(4) Remove the slit portions on the bottom frame and
casings using nippers .
(5) Return by following the steps in reverse order(3>2>1).

2)Upper casing

3)Side
casings

3)Side
casings

Remove the pillar
Remove 7 screws

Bottom frame

Casing

Casing

Remove the pillar

Remove the pillar

Installation
●Secure using 6 screws for floor installations.(Do not forget to secure to the rear wall.)
●For wall installations, secure the mounting plate using 5 screws and the indoor unit using 4 screws.The mounting plate should be 
installed on a wall which can support the weight of the indoor unit.
(1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the boring points on the 
wall.
(2) Secure the mounting plate to the wall with screws.

Floor Installation
Wall Installation

Casing

200mm

Molding

6screws

6screws

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Installation and Maintenance

Sayfa 39

Service Manual

(3) Once refrigerant piping and drain piping connections are complete, fill in the gap of the through hole with putty. A gap can lead to 
condensation on the refrigerant pipe, and drain pipe, and the entry of insects into the pipes.
(4) Attach the front panel and front grille in their original positions once all connections are complete.

7. Flaring the Pipe End
(1) Cut the pipe end with a pipe cutter.
(2) Remove burrs with the cut surface facing downward so that the chips do not enter the pipe.
(3) Fit the flare nut on the pipe.
(4) Flare the pipe.
(5) Check that the flaring is properly made.

CAUTION

(1) DO not use mineral oil on flared part.
(2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
(3) Never use piping which had been used for previous installations. Only use parts which are delivered with the unit.
(4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
(5) The drying material may dissolve and damage the system.
(6) Incomplete flaring may cause refrigerant gas leakage.

The pipe end must
be evenly flared in 
a perfect circle

Flare’s inner 
surface must
be scratch-free

Flaring
Set exactly at the position shown below

Conventional flare tool

Flare tool for R32

A

Clutch-type
Clutch-type
(Rigid-type)

Wing-nut type
(lmperial-type)

Die

Cut exactly
at right
angles

Make sure that the
flare nut is fitted

Renove

A
0-0.5mm
1.0-1.5mm
1.5-2.0mm

burrs

8. Connecting the Refrigerant Pipe
(1) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leaks.

Open-end wrench (fixed)

Flare nut
Coat here with refrigeration oil

Wrench

Connection pipe

Indoor unit tubing

(2) Align the centres of both flares and tighten the flares and tighten the flare nuts 3 or 4 turns by hand.
Then tighten them fully with the torque wrenches.
(3) To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces in the flare. (Use refrigeration oil for R410A.)

Flare nut tightening torque
Gas side
Liquid side
09/12K
18K
09/12K
3/8 inch
1/2 inch
1/4 inch
31-35 N.m
50-55 N.m
15-20 N.m

Caution on Piping Handling
(1) Protect the open end of the pipe against dust and moisture.
(2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
(Bending radius should be 30 to 40mm or larger.)

Be sure to
place a cap.

If no flare cap is
available,cover 
the flare mouth 
with tape to keep
dirt or water out.

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Installation and Maintenance

Sayfa 40

Service Manual

Selection of Copper and Heat Insulation Materials
When using commercial copper pipes and fittings, observe the
following:
(1) Insulation material: Polyethylene foam
Heat transfer rate:0.041 to 0.052W/mK(0.035 to 0.045kca/(mh

oC
Refrigerant gas pipes surface temperature reaches 110 max.
Choose heat insulation materials that will withstand this temperature.

(2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.

Gas side
Liquid side
Gas pipe thermal insulation
Liquid pipe
thermal insulation
09/12K
18K
09/12K
18K
O.D. 9.55mm
O.D. 12.7mm
O.D. 6.4mm
I.D. 12-15mm
I.D. 14-16mm
I.D. 8-10mm
Thickness 0.8mm
Thickness 10mm Min.

(3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.

9. Checking for Gas Leakage
(1) Check for leakage of gas after air purging
(2) See the sections on air purges and gas leak checks in
the installation manual for the outdoor unit.

10. Attaching the Connection Pipe
●Attach the pipe after checking for gas leakage, described above.
(1) Cut the insulated portion of the on-site piping, matching it up with the connecting portion.
(2) Secure the slit on the refrigerant piping side with the butt joint on the auxiliary piping using the tape, making sure there are no gaps.
(3) Wrap the slit and butt joint with the included insulation sheet, making sure there are no gaps.

CAUTION

(1) Insulate the joint of the pipes securely. Incomplete insulation may lead to water leakage.
(2) Push the pipe inside so it does not place undue force on the front grille.

11. Connecting the Drain Hose
Insert the supplied C drain hose into the socket of the drain pan.
Fully insert the drain hose until it adheres to a seat of the socket.

12. Wiring
With a Multi indoor unit, install as described in the installation manual supplied with the Multi outdoor unit.
●Live the sensor securing plate, remove the front metal plate cover, and connect the branch wiring to the terminal block.
(1) Strip wire ends (15mm)
(2) Mach wire colours with terminal numbers on indoor and outdoor units terminal blocks and firmly screw wires to the corresponding 
terminals.
(3) Connect the earth wires to the corresponding terminals.
(4) Pull wires to make sure that they are securely latches up, then retain wires with wire retainer.
(5) In case of connecting to an adapter system, Run the remote controller cable and attach the S21. (Refer to 11. When connecting go 
an system.)

37
Installation and Maintenance

Inter-unit wiring

Gas pipe

Liquid pipe

Liquid pipe
insulation

Gas pipe
insulstion

Finising tape

Check for leakage here
Apply soapy water and ch-
eck carefully for leaking gas.
wipe soapy water off after
the check is complete.

Refrigerant
pipe
Refrigerant
pipe

Refrigerant
pipe

Slit
Slit

Insulation sheet

Tape

Auxiliary pipe

Drain pan
Seal
Drain hose

Drain pan

Seal

Sayfa 41

Service Manual

Sensor securing plate

Firmly fix the wires with the
 terminal screws

Outdoor unit

 
2
3
Terminal block

Shape wires so 
N(1)
that the front metal 
plate cover will fit 
securely.

When wire length exceeds 10m,
use 2.0mmdiameter wires

Electrical 
component
box

Indoor unit

Wire retainer

Firmly secure wire 
retainer so that 
wires sustain no 
external stress.
Front metal 
plate cover

Use the specified wire type.

Firmly fix the wires with the
 terminal screws

CAUTION

(1) Do not use tapped wires, stranded wires, extensioncords, or starburst connections, as they may cause overheating, 
electrical shock, or fire.
(2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc, from 
the terminal block.) Doing so may cause electric shock or fire.)

8.3 Outdoor Unit Installation

4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the right handle of outdoor 
unit and then remove the handle.(As show in Fig.D)
(2) Remove the screw cap of valve and aim the pipe 
joint at the bellmouth of pipe.(As show in Fig.E)

1. Fix the Support of Outdoor Unit(Select it according to the 
actual installation situation)

(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with 
expansion screws.

Liquid pipe

Pipe joint

Liquid
valve

gas pipe

CAUTION

(1) Take sufficient protective measures when installing the outdoor 
unit.
(2) Make sure the support can withstand at least four times the unit 
weight.
(3) The outdoor unit should be installed at least 3cm above the 
floor in order to install drain joint.(As show in Fig.A)
(4) For the unit with cooling capacity of 2300W~5000W, 6 
expansion screws are needed; for the unit with cooling capacity of 
6000W~8000W, 8 expansion screws are needed; for the unit with 
cooling capacity of 10000W~16000W, 10 expansion screws are 
needed.

Union nut

gas valve

Fig.E

(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .

Refer to the following table for wrench moment of force:

Hex nut diameter(mm)
Tightening torque(N.m)
Φ6
15~20
Φ9.52
30~40
Φ12
45~55
Φ16
60~65
Φ19
70~75

5. Connect Outdoor Electric Wire
(1) Remove the wire clip; connect the power connection wire 
and signal control wire (only for cooling and heating unit) to the 
wiring terminal according to the color; fix them with screws.(As 
show in Fig.F)

Drain vent

Chassis
Outdoor drain joint
Drain hose

At least 3cm above the floor

Fig.B

Fig.A

09、12K：
18K：

2. Install Drain Joint(Only for cooling and heating unit)
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.(As show in Fig.B)

N(1)
2
3

N(1)
2
3 L     N

N
L

brown
blue
blue black
yellow-
green

yellow-
green

brown (black)

yellow-
blue
blue black

yellow-
green
brown
brown
(black)

L
N

green

N
L
Indoor unit connection
POWER

Indoor unit connection
POWER

3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.(As show in Fig.C)

Fig.F

Note: the wiring board is for reference only, please refer 
to the actual one.

Foot holes

(2) Fix the power connection wire and signal control wire with 
wire clip (only for cooling and heating unit).

screw

Note:

(1) After tightening the screw, pull the power cord slightly to 
check if it is firm.
(2) Never cut the power connection wire to prolong or shorten 
the distance.

Foot holes

handle

Fig.C
Fig.D

38
Installation and Maintenance

Sayfa 42

Service Manual

8.4 Vacuum Pumping and Leak Detection

8.5 Check after Installation and Test 
Operation

1. Use Vacuum Pump
(1) Remove the valve caps on the liquid valve and gas valve and 
the nut of refrigerant charging vent.
(2) Connect the charging hose of piezometer to the refrigerant 
charging vent of gas valve and then connect the other charging 
hose to the vacuum pump.
(3) Open the piezometer completely and operate for 10-15min to 
check if the pressure of piezometer remains in -0.1MPa.
(4) Close the vacuum pump and maintain this status for 1-2min 
to check if the pressure of piezometer remains in -0.1MPa. If the 
pressure decreases, there may be leakage.
(5) Remove the piezometer, open the valve core of liquid valve 
and gas valve completely with inner hexagon spanner.
(6) Tighten the screw caps of valves and refrigerant charging 
vent.

1. Check after Installation
Check according to the following requirement after finishing 
installation.

NO.
Items to be checked
Possible malfunction

1
Has the unit been 
installed firmly?

2
Have you done the 
refrigerant leakage test?

3
Is heat insulation of 
pipeline sufficient?

4
Is water drained well?
It may cause condensation and 
water dripping.

Is the voltage of power 
supply according to the 
voltage marked on the 
nameplate?

5

Liquid valve

Piezometer

Lo
Hi

6
Is electric wiring and 
pipeline installed 
correctly?

Gas valve

Valve cap

Refrigerant charging
vent

7
Is the unit grounded 
securely?
It may cause electric leakage.

Nut of refrigerant

8
Does the power cord 
follow the specification?

Charging vent

Vacuum pump

9
Is there any obstruction 
in air inlet and air outlet?

Inner hexagon
spanner

The dust and 
sundries caused 
during installation are 
removed?

10

Open
Close

11
The gas valve and liquid 
valve of connection pipe 
are open completely?

2. Leakage Detection
(1) With leakage detector:
Check if there is leakage with leakage detector.
(2) With soap water:
If leakage detector is not available, please use soap water for 
leakage detection. Apply soap water at the suspected position
and keep the soap water for more than 3min. If there are air 
bubbles coming out of this position, theres a leakage.

12
Is the inlet and outlet 
of piping hole been 
covered?

2. Test Operation
(1) Preparation of test operation
● The client approves the air conditioner installation.
● Specify the important notes for air conditioner to the client.
(2) Method of test operation
● Put through the power, press ON/OFF button on the remote 
controller to start operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and 
HEAT to check whether the operation is normal or not.
● If the ambient temperature is lower than 16℃, the air 
conditioner cant start cooling.

39
Installation and Maintenance

The unit may drop, shake or 
emit noise.

It may cause insufficient cooling 
(heating) capacity.

It may cause condensation and 
water dripping.

It may cause malfunction or 
damage the parts.

It may cause malfunction or 
damage the parts.

It may cause malfunction or 
damage the parts.

It may cause insufficient cooling 
(heating) capacity.

It may cause malfunction or 
damaging the parts.

It may cause insufficient cooling 
(heating) capacity.

It may cause insufficient cooling 
(heating) capacity or waster 
eletricity.

Sayfa 43

Service Manual
9. Maintenance
9.1 Error Code List

Display Method of 

Indoor Unit

No.
Malfunction
Name

A/C status
Possible Causes 
Dual-8

Code
Display

During cooling and drying
operation, except indoor 
fan operates, all loads stop 
operation.
During heating operation, the 
complete unit stops.

High 
pressure
protection of 
system

1

E1

2
Low pressure
protection of 
system

The Dual-8 Code Display will 
show E3 until the low pressure 
switch stop operation.

E3

High 
discharge
temperature
protection of
compressor

During cooling and drying
operation, compressor and
outdoor fan stop while indoor 
fan operates. During heating
operation, all loads stop.

3

E4

During cooling and drying
operation, compressor and
outdoor fan stop while indoor 
fan operates. During heating
operation, all loads stop.

4
Overcurrent
protection
E5

During cooling operation,
compressor stops while 
indoor fan motor operates. 
During heating operation, the 
complete unit stops.

5
Communi-
cation
Malfunction

E6

During cooling operation:
compressor will stop while 
indoor fan will operate. 
During heating operation, the 
complete unit stops.

High
temperature
resistant
protection

6

E8

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

7
EEPROM
malfunction
EE

Limit/
decrease
frequency 
due to high
temperature 
of module

All loads operate normally, 
while
operation frequency for
compressor is decreased

8

EU

9
Malfunction
protection of
jumper cap

Wireless remote receiver and
button are effective, but can
not dispose the related
command

C5

40
Installation and Maintenance

Possible reasons: 
1. Refrigerant was superabundant; 
2. Poor heat exchange (including 
filth blockage of heat exchanger 
and bad radiating environment );
Ambient temperature is too high.

1.Low-pressure protection 
2.Low-pressure protection of 
system 
3.Low-pressure protection of 
compressor 

Please refer to the malfunction 
analysis (discharge protection, 
overload).

1. Supply voltage is unstable;
2. Supply voltage is too low and 
load is too high;
3. Evaporator is dirty.

Refer to the corresponding 
malfunction analysis.

Refer to the malfunction analysis 
(overload, high temperature 
resistant).

Replace outdoor control panel AP1

Discharging after the complete unit 
is de-energized for 20mins, check 
whether the thermal grease on
IPM Module of outdoor control 
panel AP1 is sufficient and whether 
the radiator is inserted tightly.
If its no use, please replace control 
panel AP1.

1. No jumper cap insert on
mainboard.
2. Incorrect insert of jumper cap.
3. Jumper cap damaged.
4. Abnormal detecting circuit of
mainboard.

Sayfa 44

Service Manual

Display Method of 

Indoor Unit

No.
Malfunction

A/C status
Possible Causes 
Dual-8

Name

Code

Display

When the outdoor unit receive 
signal of Gathering refrigerant 
,the system will be forced to 
run under cooling mode for 
gathering refrigerant

10
Gathering 
refrigerant
Fo

Indoor 
ambient
temperature
sensor is
open/short 
circuited

During cooling and drying
operation, indoor unit operates
while other loads will stop; 
during heating operation, 
the complete unit will stop 
operation.

11

F1

AC stops operation once
reaches the setting

Indoor
evaporator
temperature
sensor is
open/short
circuited

temperature. Cooling, drying:
internal fan motor stops
operation while other loads
stop operation; heating: AC
stop operation

12

F2

Outdoor 
ambient
temperature
sensor is
open/short
circuited

During cooling and drying
operating, compressor stops 
while indoor fan operates; 
During heating operation, 
the complete unit will stop 
operation

13

F3

Outdoor
condenser
temperature
sensor is
open/short
circuited

During cooling and drying
operation, compressor stops 
while indoor fan will operate; 
During heating operation, 
the complete unit will stop 
operation.

14

F4

During cooling and drying
operation, compressor will sop
after operating for about 3 
mins,
while indoor fan will operate;
During heating operation, the
complete unit will stop after
operating for about 3 mins.

Outdoor
discharge
temperature
sensor is
open/short
circuited

15

F5

Limit/
decrease
frequency 
due to
overload

All loads operate normally, 
while
operation frequency for
compressor is decreased

16

F6

Decrease
frequency 
due to
overcurrent

All loads operate normally, 
while
operation frequency for
compressor is decreased

17

F8

41
Installation and Maintenance

Nominal cooling mode

1. Loosening or bad contact of
indoor ambient temp. sensor and
mainboard terminal.
2. Components in mainboard fell
down leads short circuit.
3. Indoor ambient temp. sensor
damaged.(check with sensor
resistance value chart)
4. Mainboard damaged.

1. Loosening or bad contact of 
Indoor
evaporator temp. sensor and
mainboard terminal.
2. Components on the mainboard 
fall
down leads short circuit.
3. Indoor evaporator temp. sensor
damaged.(check temp. sensor 
value
chart for testing)
4. Mainboard damaged.

Outdoor temperature sensor 
hasnt been connected well or 
is damaged. Please check it by 
referring to the resistance table for 
temperature sensor)

Outdoor temperature sensor 
hasnt been connected well or 
is damaged. Please check it by 
referring to the resistance table for 
temperature sensor)

1.Outdoor temperature sensor 
hasnt been connected well or is 
damaged. Please check it by
referring to the resistance table for 
temperature sensor)
2.The head of temperature sensor 
hasnt been inserted into the copper 
tube

Refer to the malfunction analysis 
(overload, high temperature 
resistant)

The input supply voltage is too low;
System pressure is too high and 
overload

Sayfa 45

Display Method of 

Indoor Unit

No.
Malfunction

A/C status
Possible Causes 
Dual-8

Name

Code

Display

Decrease
frequency 

Overload or temperature is too 
high; 

All loads operate normally, 

while
operation frequency for

18

due to
high air

F9

Refrigerant is insufficient;
Malfunction of electric expansion 

compressor is decreased

discharge

valve (EKV)

Limit/

decrease
frequency 

All loads operate normally, 
while operation frequency for 

Poor air-return in indoor unit or fan 

19

FH

speed is too low

due to
antifreezing

compressor is decreased

1. Measure the voltage of position 
L and N on wiring board (XT), if the 
voltage is higher than 265VAC, turn 
on the unit after the supply voltage 
is increased to the normal range.
2.If the AC input is normal, 
measure the voltage of electrolytic 
capacitor C on control panel (AP1), 
if its normal, theres malfunction 
for the circuit, please replace the 
control panel (AP1)

During cooling and drying
operation, compressor will stop

20
Voltage for 
DC bus-bar 

while indoor fan will operate;
During heating operation, the
complete unit will stop 
operation.

PH

is too high

1. Measure the voltage of position 
L and N on wiring board (XT), if the 
voltage is higher than 150VAC,
turn on the unit after the supply 
voltage is increased to the normal 
range.
2.If the AC input is normal, 
measure the voltage of electrolytic 
capacitor C on control panel (AP1), 
if its normal, theres malfunction 
for the circuit, please replace the 
control panel (AP1)

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

21
Voltage of 
DC bus-bar 
is too low 

PL

Compressor 
Min 
frequence in 
test state

P0
Showing during min. cooling or 
min. heating test

22

Compressor 
rated 
frequence in 
test state

P1
Showing during nominal cooling or 
nominal heating test

23

Compressor 
maximum 
frequence in 
test state

P2
Showing during max. cooling or 

24

max. heating test

42
Installation and Maintenance

Service Manual

Sayfa 46

Service Manual

Display Method of 

Indoor Unit

No.
Malfunction
Name

A/C status
Possible Causes 
Dual-8

Code

Display

Compressor 

intermediate 
frequence in 

P3
Showing during middle cooling or 
middle heating test

26

test state

During cooling and drying

Overcurrent

operation, compressor will stop
while indoor fan will operate;

protection of
phase 

26

P5

During heating operation, the
complete unit will stop 

current for 
compressor

operation.

During cooling and drying
operation, compressor will stop

Charging

malfunction 
of capacitor
PU

27

while indoor fan will operate;
During heating operation, the
complete unit will stop

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop

Malfunction 
of module
temperature
sensor circuit

28

P7

During cooling operation,
compressor will stop while 
indoor fan will operate; 
During heating operation, the 
complete unit will stop

29
Module high
temperature

P8

protection

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop 
operation.

30
Overload
protection for
compressor

H3

During cooling and drying

operation, compressor will stop

31
IPM 
protection
H5

while indoor fan will operate;
During heating operation, the

complete unit will stop 
operation.

Internal fan motor, external fan 
motor, compressor and electric 
heater stop operation,guide 
louver stops at present 
location.

32
Internal motor 
(fan motor) do 

H6

not operate

43
Installation and Maintenance

Refer to the malfunction  

analysis (IPM protection, loss 
of synchronism protection and 

overcurrent protection of phase 
current for compressor.

Refer to the part three—charging 
malfunction analysis of capacitor

Replace outdoor control panel AP1

After the complete unit is de-
energized for 20mins, check 
whether the thermal grease on IPM 
Module  of outdoor control panel 
AP1 is sufficient and whether the 
radiator is inserted tightly. If its no 
use, please replace control panel 
AP1.

1. Wiring terminal OVC-COMP 
is loosened. In normal state, the 
resistance for this terminal should
be less than 1ohm. 
2.Refer to the malfunction analysis ( 
discharge protection, overload)

Refer to the malfunction 

analysis (IPM protection, loss 

of synchronism protection and 
overcurrent protection of phase 
current for compressor.

1. Bad contact of DC motor

feedback terminal.
2. Bad contact of DC motor
control end.

3. Fan motor is stalling.

4. Motor malfunction.
5. Malfunction of mainboard rev
detecting circuit.

Sayfa 47

Display Method of 

Indoor Unit

No.
Malfunction
Name

A/C status
Possible Causes 
Dual-8

Code

Display

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop 
operation.

Refer to the malfunction 

33
Desynchro-
nizing of 

analysis (IPM protection, loss 
of synchronism protection and 

H7

compressor

overcurrent protection of phase 
current for compressor.

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop 
operation.

34
PFC 
protection
HC

Replace outdoor control panel AP1 
or Reactor

35
Outdoor DC 
fan motor 

DC fan motor malfunction or 
system blocked or the connector 

Outdoor DC fan motor 
malfunction lead to compressor 
stop operation, 

L3

malfunction

loosed 

compressor stop operation and 
Outdoor fan motor will stop 
30s latter , 3 minutes latter 
fan motor and compressor will 
restart

To protect the electronical 
components when detect high 
power 

36
power  
protection
L9

Indoor unit 
and outdoor 
unit doesnt 
match

LP
compressor and Outdoor fan 
motor cant work 

Indoor unit and outdoor unit doesnt 
match

37

During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop 
operation.

38
Failure start-
up
LC

Refer to the malfunction analysis

39
Anti-freezing 
protection for 
evaporator

E2
Not the error code. It’s the 
status code for the operation.

1. Outdoor ambient temperature 
exceeds the operation range of unit 
(eg: less than-20oC or more than 

Cool: compressor and outdoor 
fan stops operation, while 
indoor fan operates; Heat: 

60oC for cooling; more than 30oC 
for heating); 
2. Failure startup of compressor?

40
Undefined 
outdoor unit 

oE

error

compressor, outdoor fan and 

3. Are wires of compressor not 

indoor fan stop operation. 

connected tightly?
4. Is compressor damaged?

5. Is main board damaged? 

Malfunction of 

During cooling and drying

phase current
detection 
circuit for 

operation, compressor will stop
while indoor fan will operate;
During heating operation, the

41

U1

Replace outdoor control panel AP1

compressor

complete unit will stop

During cooling and drying
operation, compressor will stop

Malfunction of 
voltage
dropping for

42

U3

while indoor fan will operate;
During heating operation, the

Supply voltage is unstable

DC bus-bar

complete unit will stop

44
Installation and Maintenance

Service Manual

Sayfa 48

Service Manual

Display Method of 

Indoor Unit

No.
Malfunction
Name

A/C status
Possible Causes 
Dual-8

Code
Display

During cooling and drying
operation, the compressor will

Malfunction 
of complete 

stop while indoor fan will 
operate; 

43

U5

units current 
detection

During heating operating, 
the complete unit will stop 

operation.

If this malfunction occurs 

44
The four-way
valve is

during heating operation, 
the complete unit will stop 

U7

abnormal

operation.

Cold air 

E9
Not the error code. It’s the 
status code for the operation.

45

prevention 
protection

Heating indicator off for 
0.5s and then blinks for 
10s 

Not the error code. It’s the 
status code for the operation.

46
Defrosting 

47
Refrigerant 
recovery 
mode 

Refrigerant recovery. The 
Serviceman operates it for 
maintenance.

Fo

Malfunction 
of zero-cross 
detection 
circuit

48

U8
The complete unit stops

49
Malfunction 
of detecting 
plate(WIFI )

Loads operate normally, 
while the unit can’t be 
normally controlled by APP.

JF

45
Installation and Maintenance

Theres circuit malfunction on 
outdoor units control panel AP1, 

please replace the outdoor units 
control panel AP1.

1.Supply voltage is lower than 
AC175V;

2.Wiring terminal 4V is loosened or 
broken;

3.4V is damaged, please replace 
4V.

1.Power supply is abnormal;
2.Detection circuit of indoor control 
mainboard is abnormal.

1.Main board of indoor unit is 
damaged;
2.Detection board is damaged;
3.The connection between 
indoor unit and detection 

board is not good; 

Sayfa 49

Analysis or processing of some of the malfunction display:
1. Compressor discharge protection
Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system 

has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes 

incorrect operation; malfunction of compressor; malfunction of protection relay; malfunction of discharge sensor; outdoor temperature 

too high. 

Processing method: refer to the malfunction analysis in the above section.
2. Low voltage overcurrent protection
Possi ble cause: Sudden drop of supply voltage.
3. Communication malfunction
Processing method: Check if communication signal cable is connected reliably.
4. Sensor open or short circuit
Processing method: Check whether sensor is normal, connected with the corre sponding position on the controller and if damage of 

lead wire is found.
5. Compressor over load protection
Possible causes: insufficient or too much refrigrant; blockage of capillary and increase of suction temp.; improper running of 

compressor, burning in or stuck of bearing, damage of discharge valve; malfunction of protector.

Processing method: adjust refrigerant amount; replace the capillary; replace the compressor; use universal meter to check if the 

contactor of compress or is fine when it is not overheated, if not replace the protector.
6. System malfunction
ieoverload protection.When tube temperature(Check the temperature of outdoor heat exchanger when cooling and check the 

temperatur e of indoor heat exchanger when heating) is too high, protectionwill beactivated.

Possi ble causes: Outdoor temperature is too high when cooling; insufficient outdoor air circulation; refrigerant flow malfunction.

please refer to the malfunction analysis in the previous section for handling method .
7. IPM module protection
Processing method:Once the module malfunction happens,if it persists for a long time and can not be selfcanceled, cut off the power 

and turn off the unit,and then re-energize the unit again after about 10 min.After repeating the procedure for sever times, if the 

malfunction still exists,replace the module.

46
Installation and Maintenance

Service Manual

Sayfa 50

Service Manual

9.2 Procedure of Troubleshooting

Indoor unit
1. Malfunction of Temperature Sensor
Main detection points:
● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted?
● Is there short circuit due to trip-over of the parts?
● Is the temperature sensor broken?
● Is mainboard broken?
Malfunction diagnosis process:

47
Installation and Maintenance

Start

Is the wiring terminal between the 
temperature sensor and the controller 

Yes

loosened or poorly contacted?

Insert the temperature 

sensor tightly

No

No

Is malfunction 

eliminated

Yes

Is there short circuit due to trip-

over of the parts

Make the parts upright

No

No

Is malfunction 

Yes

eliminated

Is the temperature sensor normal 
according to the resistance table?

No

Yes

Replace it with a 
temperature sensor with 

the same model

Yes

Is malfunction 

No

eliminated

Replace the mainboard with 

the same model.

Yes

End

Sayfa 51

2. Malfunction of Blocked Protection of IDU Fan Motor
Main detection points:
● SmoothlyIs the control terminal of PG motor connected tightly?
● SmoothlyIs the feedback interface of PG motor connected tightly?
● The fan motor cant operate?
● The motor is broken?
● Detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:

Measure the voltage of this foot to 

neutral wire on the mainboard

48
Installation and Maintenance

Service Manual

Start

While power is off stir the blade 

No

with a tool to see whether the 

blade rotates  smoothly 

Tighten the screw; reassemble the blade, motor 
and shaft bearing rubber base sub-assy to make 

sure there is no foreign object between them
Yes

No

Is malfunction 

Yes

eliminated

Check if the connection of PG 
motor feedback terminal is firm

No

Insert the control terminal 

of PG motor tightly

Yes

No

Is malfunction 

Yes

eliminated

Check if the connection of PG 

No

motor control terminal is firm

Reinstall the blade 
and motor correctly

Yes

No

Is malfunction 

Yes

eliminated

Turn on the unit again; measure 

whether the output voltage on 
control terminal for PG motor is 
more than 50V  within 1 min after 

Yes

Yes

the louvers are opened

Yes

Is the motor started up

No

Replace PG motor

No

No

Yes

Is malfunction 

eliminated

Replace the mainboard 

with the same model

End

Sayfa 52

Service Manual

3. Malfunction of Protection of Jumper Cap
Main detection points:
● Is there jumper cap on the mainboard?
● Is the jumper cap inserted correctly and tightly?
● The jumper is broken?
● The motor is broken?
● Detection circuit of the mainboard is defined abnormal?
Malfunction diagnosis process:

Start

No

Appearance of the 

Is there jumper cap on the mainboard?

jumper cap

Assemble the jumper
cap with the same model

Yes

No

Is malfunction 

eliminated

No

Is the jumper cap inserted correctly 

and tightly?

Insert the jumper 

cap tightly

Yes

No

Is malfunction 

Yes

eliminated

Replace the jumper cap with 

the same model

Yes

Is malfunction 

eliminated

Yes

No

Replace the mainboard

with the same model

End

49
Installation and Maintenance

Sayfa 53

4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor
Main detection points:
● Instant energization afte de-energization while the capacitordischarges slowly?
● The zero-cross detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:

Start

Turn power off for 

1minute,the turn 
back on

The unit returns to normal. 
Conclusion:U8 is displayed due to 
power off/on while the
capacitor discharges slowly.

U8 is still 
displayed

No

Yes

The zero-cross detection circuit 

of the mainboard is defined 
abnormal.Replace the mainboard 

with the same model

End

50
Installation and Maintenance

Service Manual

Sayfa 54

Service Manual

5. Malfunction of detecting plate(WIFI )JF

Start

check if the connection wire
 are correctly connected

Yes

Replace the detecting 
plate with the same model

Replace the mainboard 

with the same model
Yes

51
Installation and Maintenance

Is malfunction 

eliminated

No

The end

Sayfa 55

Service Manual

Outdoor unit
1. Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel)
Main Check Points:

●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.

●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged?

Fault diagnosis process:

Turn on the unit 

and wait 1 minute

Use DC voltmeter 

to measure the 
voltage on the two 
ends of electrolytic 

capacitor 

Fault with the voltage 

Yes

Replace the control 

testing circuit on 
control panel AP1

Voltage higher than 200V?

panel AP1

No

Measure the AC voltage between 
terminal L and N on wiring board 
XT(power supply)

Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC

power on and
restart the unit

Voltage within 
210VAC~250VAC?

If the fault is 
eliminated?

No

Yes

Yes

Shut down the power and wait 20 minutes;  
or use DC voltmeter to measure the voltage 
on the two ends of capacitor , until the 
 voltage  is lower than 20V

No

Check the 
connection of reactor 

(L in the Electrical 

Wiring Diagram)

Connect the reactor 
Laccording to Elec-
trical Wiring Diagr-
am correctly

 
Re-energize and
turn on the unit

If the wiring of 
reactor L is normal?

No

If the fault is 
eliminated?

Yes

Yes

Replace the control 

panel AP1

No

End

52
Installation and Maintenance

Sayfa 56

Service Manual

(2) IPM protection, phase current overcurrent (the control board as below indicates the control board 

    of outdoor unit) H5/P5

Mainly detect:

(1) Compressor COMP terminal  (2) voltage of  power supply (3) compressor 
(4) Refrigerant-charging volume  (5) air outlet and air inlet of outdoor/indoor unit

Troubleshooting:

Turn on the unit 
after energization

Whether IPM 
protection occurs after the unit has 

operated for a while? 

Correctly connect the wires of 
compressor according to the 
electric wiring diagram, and 
then turn on the unit

Measure the voltage 

between terminal L 
and terminal N with 

AC volmeter

Check the power 
supply voltage and 
make the power voltage 

Whether 
the voltage between 
terminal L and terminal N of XT is 

resume to the range 
of 210VAC~250VAC

within 210AVC~

250VAC?

1. Whether the heat exchangers of indoor unit and outdoor unit are 
dirty? Whether the radiation is affected because the unit is 
covered by the objects? 
2. When indoor fan and outdoor unit are operate normally?
3. Whether the system pressure is too high?
4. Whether the pressure is because there's too much refrigerant? 

Correct it one by one 
according to the Service 
Manual, and then turn on 

Whether there's 
abnormal phenomenons 

described as above? 

the unit. 

Whether the unit 
can operate normally? 

Replace control 

board

End

53
Installation and Maintenance

Check the connection 
between the control board 

and the compressor by 

referring to the electric 

wiring diagram

Check whether wires 
of compressor (UVW) are connected 

correctly

Measure the resistance value 
among three terminals (UVW) 
of compressor with a resistance 

measuring meter. 

Whether the 
resistance value of three terminals 

are almost the same. 

Measure the resistance 
between three terminals (UVW) 
of compressor and the copper pipe 

with resistance measuring meter

Whether the 
resistance value is more than 

500ohm?

Replace the 
compressor 

Sayfa 57

3. High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor 
unit)
Mainly detect:

●Is outdoor ambient temperature in normal range?

●Are the outdoor and indoor fans operating normally?

●Is the heat dissipation environment inside and outside the unit good?

Fault diagnosis process:

Overheat and high 
temperature protection

Normal protection, please operate 
it after the outdoor ambient temp-
erature is normalized.

Yes

Is outdoor ambient temperature higher than 53?

No

20 minutes after the complete 
unit is powered off.

Improve the heat 
dissipation environ-
ment of the unit

Yes

Is heat dissipation of the indoor unit 

and outdoor unit abnormal?

No

1. Check if the fan terminal OFAN 
is connected correctly
2. Resistance between any two 
terminals is measure by an ohm 
gauge and should be less than 1K 
Ohm.

No

Does the outdoor fan work normally?

Yes

Replace the fan 

capacitor C1

Replace the  
control panel AP1

Replace the 
outdoor fan

End

54
Installation and Maintenance

Service Manual

Sayfa 58

Service Manual

4. Start-up failure (following AP1 for outdoor unit control board)
Mainly detect:

●Whether the compressor wiring is connected correct?

●Is compressor broken?

●Is time for compressor stopping enough?

Fault diagnosis process:

55
Installation and Maintenance

Power on the unit

No

Restart it up after 
3 minutes

Is stop time of the compressor 

longer than 3 minutes?

Yes

Does startup fail?

Yes

Connect the wires as 
per the connection 
diagram

Are the wires for the compressor connected 

No

correctly? Is connection sequence right?

Yes

Replace the control panel AP1

No

If the fault is eliminated?

No

Replace the 
compressor

Yes

End

Sayfa 59

5. Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit)
Mainly detect:

●Is the system pressure too high?

●Is the input voltage too low?

Fault diagnosis process:

Out of step occurs once the 

unit is powered on.

No

Is stop time of the 
compressor longer than 

3 minutes?

Yes

Are the wires for the compressor connected 

correctly? Is connection sequence right?

Is the connection made in clockwise 

direction?

No

Connect the 
wires correctly

Yes

Replace the control 

panel AP1

Yes

If the fault is eliminated?

No

Replace the 
compressor 

End

56
Installation and Maintenance

Service Manual

Out of step occurs in 

operation

Check if the fan terminal 
OFAN is connected correctly

No

Replace the fan 

Is the outdoor fan working 

normally?

capacitor C1

Yes

Replace the 
outdoor fan

Is the outdoor unit blocked 

Yes

Remove foreign objects

by foreign objects?

No

Replace the 
control panel AP1

Yes

If the fault is eliminated?

No

Replace the 
compressor 

End

Sayfa 60

Service Manual

6. Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board)
Mainly detect:

●Is the PMV connected well or not? Is PMV damaged?

●Is refrigerant leaked?

Fault diagnosis process:

57
Installation and Maintenance

20 minutes after the 
complete unit is 

powered off

Is the terminal FA for the 
electronic expansion valve 

Connect the 
wires correctly

No

connected correctly?

Yes

Resistances between the first four pins 
close to the terminal hole and the fifth 
pin are almost the same, less than 100 
ohm.

Replace the electronic 

expansion valve

Yes

If the fault is eliminated?

No

Replace the 
control panel 

AP1

Yes

If the fault is eliminated?

No

Coolant leakage, refilling 

the coolant

End

Sayfa 61

Service Manual

7. Communication malfunction: (following AP1 for outdoor unit control board)
Mainly detect:

●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged?

●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any 

damage?

Fault diagnosis process:

Start

Did the equipment operate 
normally before the failure 

No

Yes

occurs?

Check the wiring of the indoor and 

outdoor units with reference to the 

wiring diagram

Check wiring inside of 
the indoor and outdoor 

Yes

Is the connection right?

units

No
No

Correctly connect the 
corresponding wires for 

The AP1 voltage 
detection circuit 
is at fault

Yes

Are wires broken?

the indoor and outdoor 

units with reference to 

the wiring diagram

No

Check the communication 

No

circuit of the outdoor unit
If the fault is eliminated?

If the fault is eliminated?

Replace the main board 

The communication 

Yes

AP1
of the outdoor unit

circuit is abnormal

No

If the fault is eliminated?

No

Replace the main board 
of the indoor unit

Yes

Yes

Yes

End

58
Installation and Maintenance

Sayfa 62

Service Manual

8.  Malfunction of Overcurrent Protection
Main detection points:
● Is the supply voltage unstable with big fluctuation?
● Is the supply voltage too low with overload?
● Hardware trouble?
Malfunction diagnosis process:

Start

Yes
Yes

Normal fluctuation should be within 10 % 
of the rated voltage on the nameplate

Is the supply voltage unstable

with big fluctuation?

No
No

Yes

Is the supply voltage too low

Adjust the supply voltage to maintain it 
within normal range

with overload?

No

No

Is the indoor / outdoor
heat exchanger dirty,or are the air inlet

Yes

Clean the indoor and outdoor heat 
exchangers and remove the blockage 
of air inlet and outlet

and outlet blocked?

No

No

The fan is abnormal? Fan
speed is too low or fan doesnt rotate

Yes

Check the motor and reinstall the 
motor to have the fan run normally

No
No

Measure the current of live wire on 
the main board with a clamp ampere 

No

Replace the mainboard with the same 
model

meter. Is the current higher than the 
value of the overcurrent protection?

No

Yes

Is there blockage inside the system? 

Yes

Flush the heat exchangers with high 
pressure nitrogen

(Filth blockage, ice plug, greasy 
blockage, the cut off valve hasnt been 

opened completely)

No

No

Is the compressor running abnormally? 
Is there abnormal sound or oil leakage; 
Is the temperature of the shell too high, 

Yes

Replace the compressor

etc.?

No

Replace the mainboard 

with the same model

End

59
Installation and Maintenance

Is malfunction 

eliminated

Yes

Is malfunction 

eliminated

Yes

Is malfunction 

eliminated

Is malfunction 

Yes

eliminated

Is malfunction 

Yes

eliminated

Yes

Is malfunction 

eliminated

Is malfunction 

Yes

eliminated

Sayfa 63

9.3 Maintenance Method for Normal Malfunction

1. Air Conditioner Can't be Started Up

Possible Causes 
Discriminating Method (Air conditioner Status)
Troubleshooting 

Confirm whether it's due to power failure. If yes, 
wait for power recovery. If not, check power 
supply circuit and make sure the power plug is 
connected well. 
Wrong wire connection between 
indoor unit and outdoor unit, 
or poor connection for wiring 
terminals 

No power supply, or poor 
connection for power plug

After energization, operation indicator isn’t bright 
and the buzzer can't give out sound 

Under normal power supply circumstances, 
operation indicator isn't bright after energization

Make sure the air conditioner is grounded 
reliably
Make sure wires of air conditioner is connected 
correctly
Check the wiring inside air conditioner. Check 
whether the insulation layer of power cord is 
damaged; if yes, place the power cord.
Model selection for air switch is 
improper
After energization, air switch trips off
Select proper air switch

Electric leakage for air conditionerAfter energization, room circuit breaker trips off at 

once

After energization, operation indicator is bright, 
while no display on remote controller or buttons 
have no action. 

Malfunction of remote controller 

2. Poor Cooling (Heating) for Air Conditioner 

Possible Causes 
Discriminating Method (Air conditioner Status)
Troubleshooting 
Set temperature is improper
Observe the set temperature on remote controller Adjust the set temperature
Rotation speed of the IDU fan 
motor is set too low
Small wind blow 
Set the fan speed at high or medium 

Filter of indoor unit is blocked 
Check the filter to see it's blocked 
Clean the filter 

Check whether the installation postion is proper 
according to installation requirement for air 
conditioner 

Installation position for indoor unit 
and outdoor unit is improper 

Discharged air temperature during cooling is 
higher than normal discharged wind temperature; 
Discharged air temperature during heating is 
lower than normal discharged wind temperature; 
Unit's pressure is much lower than regulated 
range 

Refrigerant is leaking 

Malfunction of 4-way valve 
Blow cold wind during heating 
Replace the 4-way valve 

Discharged air temperature during cooling is 
higher than normal discharged wind temperature; 
Discharged air temperature during heating is 
lower than normal discharged wind temperature; 
Unit't pressure is much lower than regulated 
range. If refrigerant isn’t leaking, part of capillary 
is blocked 

Malfunction of capillary

Flow volume of valve is 
insufficient 

The pressure of valves is much lower than that 
stated in the specification
Open the valve completely 

Malfunction of horizontal louver 
Horizontal louver can’t swing 
Refer to point 3 of maintenance method for 
details 

Malfunction of the IDU fan motor The IDU fan motor can’t operate 
Refer to troubleshooting for H6 for maintenance 
method in details 

Malfunction of the ODU fan motor The ODU fan motor can't operate 
Refer to point 4 of maintenance method for 
details 

Malfunction of compressor 
Compressor can't operate 
Refer to point 5 of maintenance method for 
details 

3. Horizontal Louver Can't Swing

Possible Causes 
Discriminating Method (Air conditioner Status)
Troubleshooting 

Connect wires according to wiring diagram to 
make sure all wiring terminals are connected 
firmly
Stepping motor is damaged 
Stepping motor can't operate 
Repair or replace stepping motor 

Wrong wire connection, or poor 
connection 

Check the wiring status according to circuit 
diagram 

Main board is damaged 
Others are all normal, while horizontal louver 
can't operate 
Replace the main board with the same model

60
Installation and Maintenance

Service Manual

Check the circuit according to circuit diagram 
and connect wires correctly. Make sure all 
wiring terminals are connected firmly

Replace batteries for remote controller
Repair or replace remote controller

Adjust the installation position, and install the 
rainproof and sunproof for outdoor unit

Find out the leakage causes and deal with it. 
Add refrigerant. 

Replace the capillary

Sayfa 64

Service Manual

4. ODU Fan Motor Can't Operate

Possible causes 
Discriminating method (air conditioner status)
Troubleshooting 

Wrong wire connection, or poor 
connection 

Check the wiring status according to circuit 
diagram 

Measure the capacity of fan capacitor with an 
universal meter and find that the capacity is out of 
the deviation range indicated on the nameplate of 
fan capacitor.

Capacity of the ODU fan motor is 
damaged 

Power voltage is a little low or 
high 

Use universal meter to measure the power supply 
voltage. The voltage is a little high or low 
Suggest to equip with voltage regulator 

When unit is on, cooling/heating performance 
is bad and ODU compressor generates a lot of 
noise and heat. 

Motor of outdoor unit is damaged

5. Compressor Can't Operate

Possible causes 
Discriminating method (air conditioner status)
Troubleshooting 

Wrong wire connection, or poor 
connection 

Check the wiring status according to circuit 
diagram 

Measure the capacity of fan capacitor with an 
universal meter and find that the capacity is out of 
the deviation range indicated on the nameplate of 
fan capacitor.

Capacity of compressor is 
damaged 

Power voltage is a little low or 
high 

Use universal meter to measure the power supply 
voltage. The voltage is a little high or low 
Suggest to equip with voltage regulator 

Coil of compressor is burnt out
Use universal meter to measure the resistance 
between compressor terminals and it's 0
Repair or replace compressor

Cylinder of compressor is blocked Compressor can't operate 
Repair or replace compressor 

6. Air Conditioner is Leaking 

Possible causes 
Discriminating method (air conditioner status)
Troubleshooting 

Drain pipe is blocked 
Water leaking from indoor unit
Eliminate the foreign objects inside the drain 
pipe
Drain pipe is broken 
Water leaking from drain pipe
Replace drain pipe 

Wrapping is not tight
Water leaking from the pipe connection place of 
indoor unit
Wrap it again and bundle it tightly 

7. Abnormal Sound and Vibration

Possible causes 
Discriminating method (air conditioner status)
Troubleshooting 
When turn on or turn off the unit, 
the panel and other parts will 
expand and there's abnormal 
sound 

There's the sound of "PAPA"
Normal phenomenon. Abnormal sound will 
disappear after a few minutes. 

When turn on or turn off the unit, 
there's abnormal sound due 
to flow of refrigerant inside air 
conditioner

Water-running sound can be heard 
Normal phenomenon. Abnormal sound will 
disappear after a few minutes. 

Foreign objects inside the indoor 
unit or there're parts touching 
together inside the indoor unit 

Remove foreign objects. Adjust all parts' 
position of indoor unit, tighten  screws and stick 
damping plaster between connected parts 
Foreign objects inside the outdoor 
unit or there're parts touching 
together inside the outdoor unit 

There's abnormal sound fro indoor unit

Remove foreign objects. Adjust all parts' 
position of outdoor unit, tighten  screws and 
stick damping plaster between connected parts 
Short circuit inside the magnetic 
coil 

There's abnormal sound fro outdoor unit

During heating, the way valve has abnormal 
electromagnetic sound 
Replace magnetic coil 

Abnormal shake of compressor 
Outdoor unit gives out abnormal sound 
Adjust the support foot mat of compressor, 
tighten the bolts 

Abnormal sound inside the 
compressor 
Abnormal sound inside the compressor 

61
Installation and Maintenance

Connect wires according to wiring diagram to 
make sure all wiring terminals are connected 
firmly

Replace the capacity of fan

Change compressor oil and refrigerant. If no 
better, replace the compressor with a new one

Connect wires according to wiring diagram to 
make sure all wiring terminals are connected 
firmly

Replace the compressor capacitor

If add too much refrigerant during maintenance, 
please reduce refrigerant properly. Replace 
compressor for other circumstances. 

Sayfa 65

10. Exploded View and Parts List

10.1 Indoor Unit

15
16

14

13

33

12

11

10
9

7
8

6

5

4

3

2

1

The component is only for reference;please refer to the actual product.

62
Installation and Maintenance

Service Manual

17

18

19

20

21

22
23

24

25

26

28
27

Sayfa 66

Service Manual

NO.
Description
Part Code

Product  Code
CV010N02900
CV010N02700
CV010N02800

1
Front Panel Assy
20012756
20012756
20012756
1

2
Filter Sub-Assy
11122139
11122139
11122139
1

3
Front Case Assy
20012601
20012601
20012601
1

4
Evaporator Assy
01100100160
01100100160
01100100164
1

5
Cold Plasma Generator
1114001604
1114001604
1114001604
1

6
Rear Case Assy
000001060071 
000001000051 
000001060071 
1

7
Centrifugal Fan
10312005
10312005
10312005
1

8
Fan Motor
 1570410001201
 1570410001201
1570410001201
1

9
SteppingMotor
1521210101
1521210101
1521210101
1

10
Crank
73012005
73012005
73012005
1

11
Swing Assy
10102042
10102042
000211060003 
1

12
Terminal Board
422000000022 
422000000022
422000000022
1

13
Switch Board
30112007
30112007
30112007
1

14
Display Board
30568131
30568131
30568131
1

15
Fuse
 46010055 
46010055
46010055
1

16
Radiator
/
/
/
/

17
Signal Wire
4003004202
4003004202
4003004202
1

18
Jumper
4202300112
4202300111
4202300114
1

19
Main Board
300002000631
300002000631
300002000631
1

20
Electric Box
20112116
20112116
20112116
1

21
Electric Box Assy
100002002951
100002002848 
100002002386
1

22
Air Louver (upper)
10512143
10512143
10512143
2

23
Swing Lever
10582096
10582096
10582096
1

24
Shaft of Guide Louver
10542020
10542020
10542020
1

25
Water Tray Assy
20182141
20182141
20182141
1

26
Air Louver (lower)
10512144
10512144
10512144
1

27
Axis (lower step motor)
10542034
10542034
10542034
1

28
SteppingMotor
1521210805
1521210805 
1521210805
1

29
Connecting Cable
4002052317
4002052317
4002052317
0

30
Temperature Sensor
3900004508
3900004508
3900004508
1

31
Remote Controller
305001000111
305001000111
305001000111
1

32
Temperature Sensor
390000591
390000591
3900004508
1

33
Detecting Plate
30110154 
30110154 
30110154
1

Above data is subject to change without notice.

63
Installation and Maintenance

Qty
GEH12AA-K6DNA1A/I 
GEH09AA-K6DNA1F/I
GEH18AA-K6DNA1F/I

Sayfa 67

NO.
Description
Part Code

Qty
GEH12AA-K6DNA1A/I 
GEH09AA-K6DNA1F/I
GEH18AA-K6DNA1F/I

Product  Code
CV010N02901
CV010N02701
CV010N02801

1
Front Panel Assy
20012756
20012756
20012756
1

2
Filter Sub-Assy
11122139
11122139
11122139
1

3
Front Case Assy
20012601
20012601
20012601
1

4
Evaporator Assy
01100100160
01100100160
01100100164
1

5
Cold Plasma Generator
/
/
/
/

6
Rear Case Assy
000001060071
000001000051 
000001060071 
1

7
Centrifugal Fan
10312005
10312005
10312005
1

8
Fan Motor
1570410001201
1570410001201
1570410001201
1

9
Stepping Motor
1521210101
1521210101
1521210101 
1

10
Crank
73012005
73012005
73012005
1

11
Swing Assy
10102042
10102042
000211060003 
1

12
Terminal Board
422000000022
422000000022
422000000022
1

13
Switch Board
30112007
30112007
30112007
1

14
Display Board
30568131
30568131
30568131
1

15
Fuse
46010055
46010055
46010055
1

16
Radiator
/
/
/
/

17
Signal Wire
4003004202
4003004202
4003004202
1

18
Jumper
4202300112
4202300111
4202300114
1

19
Main Board
300002000630
300002000630
300002000630
1

20
Electric Box
20112116
20112116
20112116
1

21
Electric Box Assy
100002060178
100002060177
100002060176
1

22
Air Louver (upper)
10512143
10512143
10512143
2

23
Swing Lever
10582096
10582096
10582096
1

24
Shaft of Guide Louver
10542020
10542020
10542020
1

25
Water Tray Assy
20182141
20182141
20182141
1

26
Air Louver (lower)
10512144
10512144
10512144
1

27
Axis (lower step motor)
10542034
10542034
10542034
1

28
Stepping Motor
1521210805
1521210805
1521210805 
1

29
Connecting Cable
4002052317
4002052317
4002052317
0

30
Temperature Sensor
3900004508
3900004508
3900004508
1

31
Remote Controller
305001000111
305001000111
305001000111
1

32
Temperature Sensor
3900004508
3900004508
3900004508
1

33
Detecting Plate
30110154
30110154
30110154
1

Above data is subject to change without notice.

64
Installation and Maintenance

Service Manual

Sayfa 68

Service Manual

10.2 Outdoor Unit

GEH12AA-K6DNA1A/O

1
2
3
4
5
7

21
22 23
24 25

20

19

18

17

16

The component picture is only for reference; please refer to the actual product.

65
Installation and Maintenance

6

28

8

9

10

11

12
13

14

15

26

27

Sayfa 69

NO.
Description
Part Code

Product  Code
CV010W02900

1
Left Side Plate
01303200P
1

2
Fan Motor
1501308511
1

3
Motor Support
01703136
1

4
Condenser Assy
011002060521 
1

5
Top Cover Sub-Assy
000051060038 
1

6
Rear Grill
01475014
1

7
Clapboard Sub-Assy
01233180
1

8
Compressor and Fittings
009001060066
1

9
Compressor Gasket
009012000027 
3

10
4-Way Valve Assy
030152060255 
1

11
Big Handle
2623343106
1

12
Valve Cover
22243006
1

13
Cut off Valve
071302391
1

14
Cut off Valve
07130239
1

15
Valve Support
0171314201P
1

16
Front Grill
22413047
1

17
Cabinet
01433033P
1

18
Axial Flow Fan
10333011
1

19
Chassis Sub-assy
017000060080P
1

20
Electric Box Assy
100002064438 
1

21
Electric Box
20113034
1

22
Main Board
300027060573 
1

23
Reactor
43130184
1

24
Wire Clamp
71010103
1

25
Terminal Board
422000060016
1

26
Electrical Heater
/
/

27
Electrical Heater (Chassis)
7651000414 
1

28
Electric Expansion Valve Sub-Assy
030026060275
1

Above data is subject to change without notice.

66
Installation and Maintenance

Service Manual

Qty
GEH12AA-K6DNA1A/O

Sayfa 70

Service Manual

GEH09AA-K6DNA1F/O

The component is only for reference;please refer to the actual product.

67
Installation and Maintenance

Sayfa 71

NO.
Description
Part Code

Product  Code
CV010W02700

1
Electric Box Assy
100002064342
1

2
Electric Box Sub-Assy
017007060831 
1

3
Main Board
300027060561 
1

4
Reactor
43130184
1

5
Terminal Board
422000060016
1

6
Wire Clamp
71010103
1

7
Front Grill
22413049
1

8
Front Panel
01533034P
1

9
Axial Flow Fan
10333004
1

10
Chassis Sub-assy
017000060298P 
1

11
Fan Motor
1501308511 
1

12
Small Handle
26233100
1

13
Top Cover Sub-Assy
000051060006 
1

14
Motor Support
01703104
1

15
Condenser Assy
011002060497
1

16
Rear Grill
01473009
1

17
Electronic Expansion Valve
07133821
1

18
Cut off Valve
071302391
1

19
Big Handle
262334332
1

20
Valve
07100003
1

21
Valve Support
0171314201P
1

22
Right Side Plate Sub-Assy
00013006002001
1

23
4-Way Valve Assy
030152060251
1

24
Clapboard Sub-Assy
0123338502
1

25
Magnet Coil
4300040050
1

26
Compressor and Fittings
009001060050
1

27
Drainage Connecter
06123401  
1

28
Electrical Heater(Compressor)
7651000414 
1

Above data is subject to change without notice.

68
Installation and Maintenance

Service Manual

Qty
GEH09AA-K6DNA1F/O

Sayfa 72

Service Manual

GEH18AA-K6DNA1F/O

The component is only for reference;please refer to the actual product.

69
Installation and Maintenance

Sayfa 73

NO.
Description
Part Code

Product  Code
CV010W02800

1
Front Grill
22413045
1

2
Front Panel
01535013P
1

3
Drainage Connecter
06123401
1

4
Chassis Sub-assy
02803270P
1

5
Drainage hole Cap
06813401
1

6
Compressor and fittings
00103919G 
1

7
Magnet Coil
4300040087
1

8
4-Way Valve Assy
030152060322 
1

9
Cut off Valve Assy 1/2
07133774
1

10
Cut off Valve Sub-Assy
07133058
1

11
Valve support assy
01715010P
1

12
Right Side Plate
0130509402P
1

13
Valve cover
22245002
1

14
Handle
26233053
1

15
Wiring Clamp
26115004
1

16
Electronic Expansion Valve assy
07133774
1

17
Electric Expand Valve Fitting
030174000058 
1

18
Rear Grill
01473043
1

19
Condenser Assy
0116348702
1

20
Reactor
/
/

21
Clapboard Assy
01233153
1

22
Coping
012049000007P
1

23
Supporting Board(Condenser)
01795010
1

24
Motor Support Sub-Assy
01705036
1

25
Fan Motor
1501506402
1

26
Axial Flow Fan
10335008
1

27
Left Side Plate
01305093P
1

28
left handle
2623525404
1

29
Electric Box Assy
100002064320
1

30
Wire Clamp
71010003
1

31
Terminal Board
422000060009
1

32
Electric Box
20113027
1

33
Radiator
49013060
1

34
Main Board
300027060548
1

35
Insulated Board (Cover of Electric Box)
20113003
1

36
Temperature Sensor
3900030901
1

Above data is subject to change without notice.

70
Installation and Maintenance

Service Manual

Qty
GEH18AA-K6DNA1F/O

Sayfa 74

Service Manual

11. Removal Procedure

11.1 Removal Procedure of Indoor Unit

Steps
Procedure

1. Remove panel 

Pull sliding clasps at both sides of panel, 

pull out the panel outwards and then 

move the panel upwards to remove it.  

2. Remove filter sub-assy

Pull the damping clasps at upper/lower 

side of filter sub-assy, and then move the 

filter sub-assy outwards to remove it.  

3. Remove test board and front case 

Remove one screws fixing the test board,
and t hen pull the test board outwards to
remove it.

Remove 

4 screws fixing the front case, 

and then pull the front case outwards to

remove it.  

71
Installation and Maintenance

Warning: Be sure to wait for a minimum of 20 minutes 
after turning off all power supplies and discharge the 
refrigerant completely before removal.

panel 

sliding clasps

filter sub-assy

damping clasps

screws
front case 

test board

Sayfa 75

4. Remove swing parts 

Remove 2 screws fixing the swing parts, 

and then pull the swing parts outwards to 

remove it. 

5. Remove water tray 

Remove 2 screws fixing water tray, and 

then pull the water tray outwards to 

remove it.  

6. Remove electric box

Remove one screw fixing the electric 

box, and then pull the electric box 

outwards to remove it.  

72
Installation and Maintenance

Service Manual

swing parts 
screw

water tray

screws

screws

electric box

Sayfa 76

Service Manual

7. Remove fixer of piping 

Pry out the clasps connecting fixer of 

piping and bottom case, and then pull 

the fixer of piping outwards to remove it. 

8. Remove evaporator

Pry out the clasps connecting evaporator 

evaporator
clasps

and bottom case, and then pull the 

evaporator outwards to remove it. 

9. Remove guide ring 

Remove 4 screws fixing guide ring, and 

then pull the guide ring outwards to 

remove it. 

screws

73
Installation and Maintenance

clasps

fixer of piping

guide ring

Sayfa 77

10. Remove centrifugal blade

Remove one nut fixing the centrifugal 

blade, and then pull the centrifugal blade 

outwards to remove it. 

11. Remove fixing bracket of motor 

Remove 3 nuts on fixing bracket of motor, 

and then pull the fixing bracket of motor 

outwards to remove it. 

12. Remove press plate of motor wire

Loosen clasps between press plate of 

motor wire and bottom case, and then 

pull the press plate of motor wire 

outwards to remove it.  

74
Installation and Maintenance

Service Manual

nut

centrifugal blade

fixing bracket 
of motor 

nuts

clasps

press plate of 
motorwire

Sayfa 78

Service Manual

11.2 Removal Procedure of Outdoor Unit

GEH09AA-K6DNA1F/O 

Procedure
Steps

1. Remove big handle

Remove the screw fixing big handle; slide out 
the big handle upwards to make the clasp of 
big handle separate from the groove of right 
side plate, and then remove the big handle.

2. Remove top panel

Remove the screws fixing top panel and 
then remove the top panel.

3. Remove front grille

Remove connection screws between the front 

grille and the front panel. Then remove the 

front grille.

75
Installation and Maintenance

Right side plate

Screw 

Big handle

Screws

Top panel

Screw 

Front grille

Screws

Sayfa 79

Procedure
Steps

4. Remove front panel

Remove the screws  fixing front panel,and 

then remove the front panel.

5. Remove axial flow blade

Remove the nut fixing axial flow blade and 
then remove the axial flow blade.

76
Installation and Maintenance

Service Manual

Screws

Screws

Screws

Panel

Screws

Nut

Axial flow blade

Sayfa 80

Service Manual

Procedure
Steps

6. Remove protective grille and right side plate

Remove the screws 1 fixing protective 
grille and then remove the protective 
grille.

Remove the screws 2 fixing right side 
plate and then remove the right side plate.

7. Remove electric box assy

Remove the screws fixing electric box
assy ; pull out each wiring terminal; lift the
electric box assy upwards to remove it.

Note:
When pulling out the wiring terminal, pay
attention to loose the clasp and don’t pull
it so hard.

77
Installation and Maintenance

Protective 
grille

Screws 2

Screws 1

Right side plate

Right side plate

Screws 2

Screws

Electric box 
assy

Sayfa 81

Procedure
Steps

8. Remove 4-way valve assy

Unsolder the spot weld of 4-way valve assy, 
compressor and condenser, and then remove 
the 4-way valve assy .

Note:
When unsoldering the spot weld, wrap the 
4-way valve with wet cloth completely to avoid 
damaging the valve due to high temperature.

9. Remove motor

Remove the screws fixing motor and then
remove the motor.

10. Remove motor support

Remove the screws fixing motor support and 
then remove the motor support.

78
Installation and Maintenance

Service Manual

4-way valve assy

Spot weld

Motor

Screws

Motor support

Screws

Sayfa 82

Service Manual

Procedure
Steps

11. Remove gas valve and liquid valve

Remove two screws fixing the gas valve,  then 
remove the gas valve.

Remove two screws fixing the liquid valve,
then remove the liquid valve.

12. Remove clapboard

Remove the screws fixing clapboard and 
then remove the clapboard.

13.  Remove valve support 

Remove the screws fixing valve support 
and then remove the valve support.

79
Installation and Maintenance

Liquid valve

Screws

Gas valve

Screws

Clapboard

Screws

Valve support 

Screws

Sayfa 83

Procedure
Steps

14. Remove compressor

Remove 3 foot nuts on compressor, and then 
remove the compressor.

Note:
Protect the ports of discharge pipe and 
suction pipe to avoid foreign objects to 
enter it.

15. Remove condenser

Remove one screw fixing the condenser, 
then remove the condenser.

80
Installation and Maintenance

Service Manual

Compressor

Foot nuts

Condenser

Screw

Sayfa 84

Service Manual

GEH12AA-K6DNA1A/O

81
Installation and Maintenance

Sayfa 85

Step

Remove grille
4.

Remove connection screws between the
front grille and the front panel. Then 
remove the grille.

5.

Remove front panel

Remove connection screws connecting 
the front panel with the chassis and the 
motor support and then remove the front 
panel.

6.

Remove right side plate and support plate

Remove connection screws connecting 
the right side plate with the valve support 
and the electric box. Then remove the 
right side plate.

plate and chassis, and then remove the 
support plate.

Remove the nut on the blade and then

82
Installation and Maintenance

Service Manual

Procedure

grille

front panel

support plate

right side plate

Sayfa 86

Service Manual

Step

8.

Remove motor and motor support

motor and disconnect the leading wire 
insert of the motor. Then remove the 
motor.

motor support and lift the motor support to 
remove it.

9.

Remove Electric Box Assy

subassembly; loosen the wire bundle and
unplug the wiring terminals. Then lift the
electric box to remove it.

10.

Remove isolation sheet

sheet and then remove the isolation 
sheet.

11.

Remove compressor

Unsolder the welding joint connecting the
capillary, valves and the outlet pipe of
condenser to remove the capillary. Do not
block the capillary with welding slag 
during unsoldering.

a

83
Installation and Maintenance

Procedure

motor support

motor

electric Box Assy

isolation sheet

liquid valve

gas valve

Sayfa 87

Procedure
Step

and unsolder the welding joint between 
the gas valve and the air-return pipe to 
remove the gas valve. (NOTE: Discharge 
the refrigerant completely before 
unsoldering; when unsoldering, wrap the 
gas valve with a wet cloth completely to 
avoid damage to the valve caused by high 
temperature).

b

valve and unsolder the welding joint 
connecting the liquid valve to the Y-type 
pipe to remove the liquid valve.

c

Unsolder pipes connecting with 
compressor.

d
Remove the 3 foot nuts on the compressor 
and then remove the compressor.

84
Installation and Maintenance

Service Manual

4-way valve

compressor

nuts

Sayfa 88

Service Manual

GEH18AA-K6DNA1F/O 

Procedure
Steps

1. Remove handle and valve cover

Remove the screws used for fixing the handle 
and valve cover,pull the handle and valve 
cover up ward to remove them.

2. Remove top panel

Remove the screws fixing top panel and 
then remove the top panel.

3. Remove front grille

Remove connection screws between the front 

grille and the front panel. Then remove the 

front grille.

85
Installation and Maintenance

Handle

Screw 

Screw 

Valve cover

Screws
Screws

Top panel

Screw 

Front grille

Screws

Sayfa 89

Procedure
Steps

4. Remove front panel

Remove the screws connecting the front 

panel with the chassis and the motor support, 
and then remove the front panel. 

5. Remove rear grill and right side plate  

Remove the screws 1 connecing the left side 
plate and right side plate and then remove 
rear grill. 

Remove the screws 2 connecting the right  
side plate with the chassis, the valve support  
and the electric box, and then remove the 
right side plate .  

86
Installation and Maintenance

Service Manual

Screws
Front panel

Screws

Rear grill 

Screws 2 

Right side 

plate

Screws 1
Screws 2

Screws 2

Right 

side plate

Screws 2  

Sayfa 90

Service Manual

Procedure
Steps

6. Remove left side plate

Remove the screws connecting the left  
side  plate and the chassis, and then 
remove the left side plate.  

7. Remove axial flow blade

Remove the nut fixing the blade and then 
remove the axial flow blade. 

8. Remove motor and motor support

Remove the screws fixing motor and then 
remove the motor.
Remove the screws fixing motor support and 
then remove the motor support.

87
Installation and Maintenance

Left side plate

Screws

Nut

Axial flow blade

Motor

Screws

Motor 
support

Screws

Sayfa 91

Procedure
Steps

9. Remove electric box assy

Remove the screws fixing electric box
assy ; pull out each wiring terminal; lift the
electric box assy upwards to remove it.

Note:
When pulling out the wiring terminal, pay
attention to loose the clasp and don’t pull
it so hard.

10. Remove soundproof sponge

Since the piping ports on the soundproof 
sponge are torn easily, remove the 
soundproof sponge carefully. 

11. Remove 4-way valve assy

Unsolder the spot weld of 4-way valve assy, 
compressor and condenser, and then remove 
the 4-way valve assy .

Note:
When unsoldering the spot weld, wrap 
the 4-way valve with wet cloth completely 
to avoid damaging the valve due to high 
temperature.

88
Installation and Maintenance

Service Manual

Screws

Electric box assy

Soundproof 
sponge

Remove 4-way valve assy

Screws

Screws

Sayfa 92

Service Manual

Procedure
Steps

12. Remove clapboard

Remove the screws fixing clapboard and 
then remove the clapboard.

13. Remove gas valve ,liquid valve and valve support  

Since the piping ports on the soundproof 
sponge are torn easily, remove the 
soundproof sponge carefully. 

14. Remove compressor

Remove 3 foot nuts on compressor, and then 
remove the compressor.

Note:
Protect the ports of discharge pipe and 
suction pipe to avoid foreign objects to 
enter it.

89
Installation and Maintenance

Clapboard

Screws

Liquid valve

Screws

Screws

Gas valve

Screws

 Valve support

Compressor

Screws

Sayfa 93

Service Manual
Appendix:

Appendix 1: Reference Sheet of Celsius and Fahrenheit

Set temperature
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32

 Fahrenheit 

 Fahrenheit 

display 
temperature

Fahrenheit

display 
temperature

Fahrenheit

（℉）
Celsius（℃）

（℉）
Celsius（℃）

（℉）

（℉）

61
60.8
16
69/70
69.8
21
78/79
78.8
26
62/63
62.6
17
71/72
71.6
22
80/81
80.6
27
64/65
64.4
18
73/74
73.4
23
82/83
82.4
28
66/67
66.2
19
75/76
75.2
24
84/85
84.2
29
68
68
20
77
77
25
86
86
30

Ambient temperature

 Fahrenheit 

 Fahrenheit 

display 
temperature

Fahrenheit

display 
temperature

Fahrenheit

（℉）
Celsius（℃）

（℉）
Celsius（℃）

（℉）

（℉）

32/33
32
0
55/56
55.4
13
79/80
78.8
26
34/35
33.8
1
57/58
57.2
14
81
80.6
27
36
35.6
2
59/60
59
15
82/83
82.4
28
37/38
37.4
3
61/62
60.8
16
84/85
84.2
29
39/40
39.2
4
63
62.6
17
86/87
86
30
41/42
41
5
64/65
64.4
18
88/89
87.8
31
43/44
42.8
6
66/67
66.2
19
90
89.6
32
45
44.6
7
68/69
68
20
91/92
91.4
33
46/47
46.4
8
70/71
69.8
21
93/94
93.2
34
48/49
48.2
9
72
71.6
22
95/96
95
35
50/51
50
10
73/74
73.4
23
97/98
96.8
36
52/53
51.8
11
75/76
75.2
24
99
98.6
37
54
53.6
12
77/78
77
25

Appendix 2: Configuration of Connection Pipe

1.Standard length of connection pipe（More details please refer to the specifications）
2.Min length of connection pipeFor the unit with standard connection pipe of 5m, there is no limitation for themin length of 
connection pipe. For the unit with standard connection pipe of 7.5m and 8m, the min length of connection pipe is 3m.
3.Max length of connection pipe（More details please refer to the specifications）
4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe
● After the length of connection pipe is prolonged for 10m at the basis of standard length, you should add 5ml of refrigerant oil for 
each additional 5m of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):
● Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table.  The additional 
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See Sheet 2.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter 

Additional refrigerant charging amount for R32
Diameter of connection pipe
Indoor unit throttl
Outdoor unit throttle

Liquid pipe
Gas pipe
Cooling only,cooling 

and heating(g / m)
Cooling only(g / m)
Cooling and heating(g / m)

Ф6
Ф9.5 or Ф12
16
12
16
Ф6 or Ф9.5
Ф16 or Ф19
40
12
40
Ф12
Ф19 or Ф22.2
80
24
96
Ф16
Ф25.4 or Ф31.8
136
48
96
Ф19
/
200
200
200
Ф22.2
/
280
280
280

Note: The additional refrigerant charging amount in Sheet 2 is recommendedvalue, not compulsory.

90
Installation and Maintenance

 Fahrenheit 

display 
temperature

Fahrenheit

（℉）
Celsius（℃）

（℉）

 Fahrenheit 

display 
temperature

Fahrenheit

（℉）
Celsius（℃）

（℉）

Sayfa 94

Service Manual

Appendix 3: Pipe Expanding Method

Note:

Improper pipe expanding is the main cause of refrigerant leakage.Please 
expand the pipe according to the following steps:

A:Cut the pip
● Confirm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.

B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.

C:Put on suitable insulating pipe

D:Put on the union nut

● Remove the union nut on the indoor connection pipe and outdoor valve; install

the union nut on the pipe.

E:Expand the port
● Expand the port with expander.

Note:

● "A" is different according to the diameter, please refer to the sheet below:

Outer diameter(mm)
A(mm)
Max
Min
Ф6 - 6.35 (1/4")
1.3
0.7
Ф9.52 (3/8”)
1.6
1.0
Ф12 - 12.70 (1/2”)
1.8
1.0
Ф16 - 15.88 (5/8”)
2.4
2.2

F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the 
port again according to the steps above.

91
Installation and Maintenance

Pipe

Pipe cutter

Leaning
Uneven
Burr

Pipe

Shaper

Downwards

Union pipe

Pipe

Hard
mold

Expander

Pipe

Smooth surface

Improper expanding

leaning
damaged

crack
uneven
thickness

surface

The length is equal

Sayfa 95

Appendix 4: List of Resistance for Temperature Sensor

Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)

Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

-19
138.1
20
18.75
59
3.848
98
1.071

-18
128.6
21
17.93
60
3.711
99
1.039

-17
121.6
22
17.14
61
3.579
100
1.009

-16
115
23
16.39
62
3.454
101
0.98

-15
108.7
24
15.68
63
3.333
102
0.952

-14
102.9
25
15
64
3.217
103
0.925

-13
97.4
26
14.36
65
3.105
104
0.898

-12
92.22
27
13.74
66
2.998
105
0.873

-11
87.35
28
13.16
67
2.896
106
0.848

-10
82.75
29
12.6
68
2.797
107
0.825

-9
78.43
30
12.07
69
2.702
108
0.802

-8
74.35
31
11.57
70
2.611
109
0.779

-7
70.5
32
11.09
71
2.523
110
0.758

-6
66.88
33
10.63
72
2.439
111
0.737

-5
63.46
34
10.2
73
2.358
112
0.717

-4
60.23
35
9.779
74
2.28
113
0.697

-3
57.18
36
9.382
75
2.206
114
0.678

-2
54.31
37
9.003
76
2.133
115
0.66

-1
51.59
38
8.642
77
2.064
116
0.642

0
49.02
39
8.297
78
1.997
117
0.625

1
46.6
40
7.967
79
1.933
118
0.608

2
44.31
41
7.653
80
1.871
119
0.592

3
42.14
42
7.352
81
1.811
120
0.577

4
40.09
43
7.065
82
1.754
121
0.561

5
38.15
44
6.791
83
1.699
122
0.547

6
36.32
45
6.529
84
1.645
123
0.532

7
34.58
46
6.278
85
1.594
124
0.519

8
32.94
47
6.038
86
1.544
125
0.505

9
31.38
48
5.809
87
1.497
126
0.492

10
29.9
49
5.589
88
1.451
127
0.48

11
28.51
50
5.379
89
1.408
128
0.467

12
27.18
51
5.197
90
1.363
129
0.456

13
25.92
52
4.986
91
1.322
130
0.444

14
24.73
53
4.802
92
1.282
131
0.433

15
23.6
54
4.625
93
1.244
132
0.422

16
22.53
55
4.456
94
1.207
133
0.412

17
21.51
56
4.294
95
1.171
134
0.401

18
20.54
57
4.139
96
1.136
135
0.391

19
19.63
58
3.99
97
1.103
136
0.382

92
Installation and Maintenance

Service Manual

oC)
Resistance(kΩ)

Sayfa 96

Service Manual

Resistance Table of Tube Temperature Sensors for Outdoor and Indoor(20K)

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

Temp(

-19
181.4
20
25.01
59
5.13
98
1.427

-18
171.4
21
23.9
60
4.948
99
1.386

-17
162.1
22
22.85
61
4.773
100
1.346

-16
153.3
23
21.85
62
4.605
101
1.307

-15
145
24
20.9
63
4.443
102
1.269

-14
137.2
25
20
64
4.289
103
1.233

-13
129.9
26
19.14
65
4.14
104
1.198

-12
123
27
18.13
66
3.998
105
1.164

-11
116.5
28
17.55
67
3.861
106
1.131

-10
110.3
29
16.8
68
3.729
107
1.099

-9
104.6
30
16.1
69
3.603
108
1.069

-8
99.13
31
15.43
70
3.481
109
1.039

-7
94
32
14.79
71
3.364
110
1.01

-6
89.17
33
14.18
72
3.252
111
0.983

-5
84.61
34
13.59
73
3.144
112
0.956

-4
80.31
35
13.04
74
3.04
113
0.93

-3
76.24
36
12.51
75
2.94
114
0.904

-2
72.41
37
12
76
2.844
115
0.88

-1
68.79
38
11.52
77
2.752
116
0.856

0
65.37
39
11.06
78
2.663
117
0.833

1
62.13
40
10.62
79
2.577
118
0.811

2
59.08
41
10.2
80
2.495
119
0.77

3
56.19
42
9.803
81
2.415
120
0.769

4
53.46
43
9.42
82
2.339
121
0.746

5
50.87
44
9.054
83
2.265
122
0.729

6
48.42
45
8.705
84
2.194
123
0.71

7
46.11
46
8.37
85
2.125
124
0.692

8
43.92
47
8.051
86
2.059
125
0.674

9
41.84
48
7.745
87
1.996
126
0.658

10
39.87
49
7.453
88
1.934
127
0.64

11
38.01
50
7.173
89
1.875
128
0.623

12
36.24
51
6.905
90
1.818
129
0.607

13
34.57
52
6.648
91
1.736
130
0.592

14
32.98
53
6.403
92
1.71
131
0.577

15
31.47
54
6.167
93
1.658
132
0.563

16
30.04
55
5.942
94
1.609
133
0.549

17
28.68
56
5.726
95
1.561
134
0.535

18
27.39
57
5.519
96
1.515
135
0.521

19
26.17
58
5.32
97
1.47
136
0.509

93
Installation and Maintenance

oC)
Resistance(kΩ)

Sayfa 97

Resistance Table of Discharge Temperature Sensor for Outdoor(50K)

oC)
Resistance(kΩ)
Temp(

Temp(

-29
853.5
10
98
49
18.34
88
4.75

-28
799.8
11
93.42
50
17.65
89
4.61

-27
750
12
89.07
51
16.99
90
4.47

-26
703.8
13
84.95
52
16.36
91
4.33

-25
660.8
14
81.05
53
15.75
92
4.20

-24
620.8
15
77.35
54
15.17
93
4.08

-23
580.6
16
73.83
55
14.62
94
3.96

-22
548.9
17
70.5
56
14.09
95
3.84

-21
516.6
18
67.34
57
13.58
96
3.73

-20
486.5
19
64.33
58
13.09
97
3.62

-19
458.3
20
61.48
59
12.62
98
3.51

-18
432
21
58.77
60
12.17
99
3.41

-17
407.4
22
56.19
61
11.74
100
3.32

-16
384.5
23
53.74
62
11.32
101
3.22

-15
362.9
24
51.41
63
10.93
102
3.13

-14
342.8
25
49.19
64
10.54
103
3.04

-13
323.9
26
47.08
65
10.18
104
2.96

-12
306.2
27
45.07
66
9.83
105
2.87

-11
289.6
28
43.16
67
9.49
106
2.79

-10
274
29
41.34
68
9.17
107
2.72

-9
259.3
30
39.61
69
8.85
108
2.64

-8
245.6
31
37.96
70
8.56
109
2.57

-7
232.6
32
36.38
71
8.27
110
2.50

-6
220.5
33
34.88
72
7.99
111
2.43

-5
209
34
33.45
73
7.73
112
2.37

-4
198.3
35
32.09
74
7.47
113
2.30

-3
199.1
36
30.79
75
7.22
114
2.24

-2
178.5
37
29.54
76
7.00
115
2.18

-1
169.5
38
28.36
77
6.76
116
2.12

0
161
39
27.23
78
6.54
117
2.07

1
153
40
26.15
79
6.33
118
2.02

2
145.4
41
25.11
80
6.13
119
1.96

3
138.3
42
24.13
81
5.93
120
1.91

4
131.5
43
23.19
82
5.75
121
1.86

5
125.1
44
22.29
83
5.57
122
1.82

6
119.1
45
21.43
84
5.39
123
1.77

7
113.4
46
20.6
85
5.22
124
1.73

8
108
47
19.81
86
5.06
125
1.68

9
102.8
48
19.06
87
4.90
126
1.64

94
Installation and Maintenance

Service Manual

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)
Temp(

oC)
Resistance(kΩ)

Sayfa 98

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070
Tel: (+86-756) 8522219         
Fax: (+86-756) 8669426
E-mail: global@cn.gree.com   www.gree.com

For product improvement, specifications and appearance in this manual are subject to change without prior notice.

JF00303896