Table of Contents
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Service Manual
Change for Life
Service Manual
Models: GDN10AH-K4EBB1C
GDN10AH-K4EBB2C
GDN10AH-K4EBB3C
GDN12AH-K4EBB1C
GDN12AH-K4EBB2C
GDN12AH-K4EBB3C
GDN16AH-K4EBB1C
GDN16AH-K4EBB2C
GDN16AH-K4EBB3C
GDN20AH-K4EBB1C
GDN20AH-K4EBB2C
GDN20AH-K4EBB3C
GDN24AH-K4EBB1C
GDN24AH-K4EBB2C
GDN24AH-K4EBB3C
(Refrigerant R134a)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
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Summary of Contents for Gree GDN10AH-K4EBB1C
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Page 1: Service Manual
Service Manual Change for Life Service Manual Models: GDN10AH-K4EBB1C GDN20AH-K4EBB1C GDN10AH-K4EBB2C GDN20AH-K4EBB2C GDN10AH-K4EBB3C GDN20AH-K4EBB3C GDN12AH-K4EBB1C GDN24AH-K4EBB1C GDN12AH-K4EBB2C GDN24AH-K4EBB2C GDN12AH-K4EBB3C GDN24AH-K4EBB3C GDN16AH-K4EBB1C (Refrigerant R134a) GDN16AH-K4EBB2C GDN16AH-K4EBB3C GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI... -
Page 2: Table Of Contents
Service Manual Table of Contents Part Ⅰ : Technical Information ............1 1.Summary ...................... 1 2.Specifications ................... 2 3.Outline Dimension Diagram ............11 4.Refrigerant System Diagram ............14 5.Electrical Part ..................15 5.1 Wiring Diagram ..................15 5.2 PCB Printed Diagram ................16 6.Function and Control ................ -
Page 3: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1.Summary Models GDN10AH-K4EBB1C GDN12AH-K4EBB1C GDN16AH-K4EBB1C GDN20AH-K4EBB1C GDN24AH-K4EBB1C GDN10AH-K4EBB2C GDN12AH-K4EBB2C GDN16AH-K4EBB2C GDN20AH-K4EBB2C GDN24AH-K4EBB2C GDN10AH-K4EBB3C GDN12AH-K4EBB3C GDN16AH-K4EBB3C GDN20AH-K4EBB3C GDN24AH-K4EBB3C Installation and Maintenance... -
Page 4: Specifications
Service Manual 2.Specifications Model GDN10AH-K4EBB1C GDN12AH-K4EBB1C Product Code CK051026100 CK051026200 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.17 0.18 Power Input Power Current 1.20 1.20 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 150/120/100 150/120/100... - Page 5 Service Manual Model GDN16AH-K4EBB1C GDN20AH-K4EBB1C Product Code CK051026300 CK051026400 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.33 0.41 Power Input Power Current 1.35 1.50 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 180/160/140 180/160/140 Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740...
- Page 6 Service Manual Model GDN24AH-K4EBB1C Product Code CK051026500 Rated Voltage 220-240 Power Supply Rated Frequency Phases Rated Dehumidification Capacity 0.50 Power Input Current Input 1.50 Set Humidity Range 35~80 Air Flow Volume(H/M/L) 180/160/140 Fan Motor Speed(H/M/L) r/min 1150/1000/850 Fan Motor Power Output Fan Motor RLA 0.16 Fan Motor Capacitor...
- Page 7 Service Manual Model GDN10AH-K4EBB2C GDN12AH-K4EBB2C Product Code CK051024000 CK051025000 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.17 0.18 Power Input Power Current 1.20 1.20 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 150/120/100 150/120/100 Fan Motor Speed (H/M/L) r/min 930/800/650 930/800/650...
- Page 8 Service Manual Model GDN16AH-K4EBB2C GDN20AH-K4EBB2C Product Code CK051023700 CK051023800 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.33 0.41 Power Input Power Current 1.35 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 180/160/140 180/160/140 Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740...
- Page 9 Service Manual Model GDN24AH-K4EBB2C Product Code CK051023900 Rated Voltage 220-240 Power Supply Rated Frequency Phases Rated Dehumidification Capacity 0.50 Power Input Current Input 1.50 Set Humidity Range 35~80 Air Flow Volume(H/M/L) 180/160/140 Fan Motor Speed(H/M/L) r/min 1150/1000/850 Fan Motor Power Output Fan Motor RLA 0.16 Fan Motor Capacitor...
- Page 10 Service Manual Model GDN10AH-K4EBB3C GDN12AH-K4EBB3C Product Code CK051026000 CK051025800 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.17 0.18 Power Input Power Current 1.20 1.20 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 150/120/100 150/120/100 Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740...
- Page 11 Service Manual Model GDN16AH-K4EBB3C GDN20AH-K4EBB3C Product Code CK051025900 CK051025600 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Rated Dehumidifying Volume 0.33 0.41 Power Input Power Current 1.35 1.50 Set Humidity Range 35~80 35~80 Air Flow Volume(H/M/L) 180/160/140 180/160/140 Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740...
- Page 12 Service Manual Model GDN24AH-K4EBB3C Product Code CK051025700 Rated Voltage 220-240 Power Supply Rated Frequency Phases Rated Dehumidification Capacity 0.50 Power Input Current Input 1.50 Set Humidity Range 35~80 Air Flow Volume(H/M/L) 180/160/140 Fan Motor Speed(H/M/L) r/min 1150/1000/850 Fan Motor Power Output Fan Motor RLA 0.16 Fan Motor Capacitor...
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Page 13: Outline Dimension Diagram
Service Manual 3.Outline Dimension Diagram GDN10AH-K4EBB1C GDN12AH-K4EBB1C GDN16AH-K4EBB1C GDN20AH-K4EBB1C GDN24AH-K4EBB1C unit:mm Installation and Maintenance... - Page 14 Service Manual GDN10AH-K4EBB2C GDN12AH-K4EBB2C GDN16AH-K4EBB2C GDN20AH-K4EBB2C GDN24AH-K4EBB2C unit:mm Installation and Maintenance...
- Page 15 Service Manual GDN10AH-K4EBB3C GDN12AH-K4EBB3C GDN16AH-K4EBB3C GDN20AH-K4EBB3C GDN24AH-K4EBB3C unit:mm Installation and Maintenance...
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Page 16: Refrigerant System Diagram
Service Manual 4.Refrigerant System Diagram evaporator air in capillary air out condenser fan motor compressor Dehumidifying principle of dehumidifier: When temperature is decreased to the temperature point of dew, water vapor in humid air will condensate. Dehumidifier is dehumidifying the air by using this principle. During operation of the system, air will pass through evaporator and condenser in turn and then be discharged due to centrifugal blade. -
Page 17: Electrical Part
Service Manual 5.Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green COMP Compressor Yellow Brown Grounding wire Blue YEGN Yellow/Green Black Violet Orange WATER LEVEL SWITCH TUBE TEMP.SENSOR MOTOR YEGN TUBE BN(BK) AC-L COMP BU(WH) YEGN(GN) -
Page 18: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Silk Screen on Main Board ● Top view No. Name Description Name Description Needle stand of board Connect to neutral wire Connect to display board Interface of neutral wire connection wire of commercial wire Needle stand of fan Connect to fan Interface of compressor Connect to compressor... - Page 19 Service Manual Silk Screen on Display Board ● Top view Name Description Name Description Needle stand of pipe Connect to pipe temperature Increase set humidity Set humidity button temperature sensor sensor button Decrease set humidity Timer 4H indicator Timer 4H indicator is on Set humidity button button Med fan step indicator...
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Page 20: Function And Control
Service Manual 6.Function and Control 6.1 Control Panel Instruction Bucket full light indicates 4 hour or 2 hour bucket needs to be emptied High Mid and Low fan Continuous operation on delay on/off or it is not in the proper place. indicator lights indicator light indicator lights... -
Page 21: Introduction Of Basic Mode Function
Service Manual 6.2 Introduction of Basic Mode Function 1. Basic Function 1) Dry conditions and process a. When HUMIDITYpreset≤HUMIDITYamb.-5%, compressor and fan will run. b. When HUMIDITYpreset≥HUMIDITYamb.+5%, compressor stop to run and fan will stop operation after 3min. c. When DEHUMITYamb.-5%<HUMIDITYpreset<HUMIDITYamb.+5%, when compressor is operation, it will run with condition a; when compressor stops, it will run with condition b. - Page 22 Service Manual Filter cleaning lamp: the lamp is on when the operation time of fan reaches to 250h totally. Water blow protection lamp: the lamp blinks if water blow protection is occurred. (5) Timer control 2h or 4h timer can be set, set timer off when the unit is on, set timer on when the unit is off. The buzzer will not give out a beep after timer time reaches.
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Page 23: Part Ⅱ : Maintenance
Service Manual Part Ⅱ : Maintenance Refrigerant Safety Precautions: 1. Avoid contact between refrigerant and fire as it generates 7.Notes Maintenance poisonous gas. Recycle the refrigerant inside the unit completely before welding pipes. Safety Precautions: 2. Apply specified refrigerant only. Never have it mixed with any other refrigerant. -
Page 24: Maintenance
Service Manual 8.Maintenance 8.1 Error Code Malfunction Nixie tube display Unit status Possible Causes Name 1. The wiring terminal between ambient temperature sensor and main board is loosened or poorly contacted; Malfunction of 2. Theres short circuit due to trip-over of the parts on ambient temp. -
Page 25: Malfunction Detection Flowchart
Service Manual 8.2 Malfunction Detection Flowchart 1. Malfunction of temperature sensor F1, F2 9.3.1 F1/F2 Malfunction Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly M alfunction is eliminated. - Page 26 Service Manual 2.Malfunction of humidity sensor L1 Trouble shooting for malfunction of humidity sensor Humidity sensor is not connected well with mainboard Check the connection Is malfunction eliminated? The foot of humidity sensor is short-circuit or the display board is short circuit Eliminate short circuit phenomenon Is malfunction...
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Page 27: Maintenance Method For Common Malfunction
Service Manual 8.3 Maintenance Method for Common Malfunction 1.The Unit Cant Start Up Possible causes Discriminating method (dehumidifier status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery. - Page 28 Service Manual 4. Compressor Cant Operate Possible causes Discriminating method (dehumidifier status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly Compressor relay on the...
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Page 29: Exploded View And Parts List
Service Manual 9.Exploded View and Parts List Installation and Maintenance... - Page 30 Service Manual Part Code Description GDN10AH-K4EBB1C GDN12AH-K4EBB1C Product code CK051026100 CK051026200 Water Tank Assy 20186542 20186542 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200016 00004200016 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079...
- Page 31 Service Manual Part Code Description GDN16AH-K4EBB1C GDN20AH-K4EBB1C Product code CK051026300 CK051026400 Water Tank Assy 20186542 20186542 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200016 00004200016 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079 Front Case 22206521 22206521...
- Page 32 Service Manual Part Code Description GDN24AH-K4EBB1C Product code CK051026500 Water Tank Assy 20186542 Water Tank Cover 22246087 Float meter sub-assy 26116528 Shield Assy (Electric) 00004200016 Front Panel 20006091S Cover of Waterspout 22246079 Front Case 22206521 Membrane 63066044 Display Board 30561066 LCD Cover 20126114 Diversion Circle...
- Page 33 Service Manual Part Code Description GDN10AH-K4EBB2C GDN12AH-K4EBB2C Product code CK051024000 CK051025000 Water Tank Assy 20186543 20186543 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200015 00004200015 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079 Front Case 22206521 22206521...
- Page 34 Service Manual Part Code Description GDN16AH-K4EBB2C GDN20AH-K4EBB2C Product code CK051023700 CK051023800 Water Tank Assy 20186543 20186543 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200015 00004200015 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079 Front Case 22206521 22206521...
- Page 35 Service Manual Part Code Description GDN24AH-K4EBB2C Product code CK051023900 Water Tank Assy 20186543 Water Tank Cover 22246087 Float meter sub-assy 26116528 Shield Assy (Electric) 00004200015 Front Panel 20006091S Cover of Waterspout 22246079 Front Case 22206521 Membrane 63066044 Display Board 30561066 LCD Cover 20126114 Diversion Circle...
- Page 36 Service Manual Part Code Description GDN10AH-K4EBB3C GDN12AH-K4EBB3C Product code CK051026000 CK051025800 Water Tank Assy 20186544 20186544 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200023 00004200023 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079 Front Case 22206521 22206521...
- Page 37 Service Manual Part Code Description GDN16AH-K4EBB3C GDN20AH-K4EBB3C Product code CK051025900 CK051025600 Water Tank Assy 20186544 20186544 Water Tank Cover 22246087 22246087 Float meter sub-assy 26116528 26116528 Shield Assy (Electric) 00004200023 00004200023 Front Panel 20006091S 20006091S Cover of Waterspout 22246079 22246079 Front Case 22206521 22206521...
- Page 38 Service Manual Part Code Description GDN24AH-K4EBB3C Product code CK051025700 Water Tank Assy 20186544 Water Tank Cover 22246087 Float meter sub-assy 26116528 Shield Assy (Electric) 00004200023 Front Panel 20006091S Cover of Waterspout 22246079 Front Case 22206521 Membrane 63066044 Display Board 30561066 LCD Cover 20126114 Diversion Circle...
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Page 39: Removal Procedure
Service Manual 10.Removal Procedure Warning: disconnect power supply before removal; discharge the refrigerant completely before unsoldering the pipes. Step Procedure 1.Remove water tank assembly Pull the water tank onwards to remove the water tank assembly. water tank assembly 2.Remove filter Press the 2 clasps of filter to make the groove loosened, then pull the filter outwards to remove it. - Page 40 Service Manual Step Procedure 4.Remove electric box cover Unscrew 2 screws fixing electric box electric box cover cover to remove it. screws screws 5.Remove face-piece assembly face-piece assembly humidity sensor Unscrew screws fixing face-piece, Open the clasps, remove humidity sensor and wiring connecting main board then pull clasps the face-piece assembly outwards.
- Page 41 Service Manual Step Procedure 8.Remove centrifugal louver centrifugal louver Remove nuts and washer fixing louver of motor axle, along the motor axle direction to pull out louver. 9.Remove pressing wire board Extrude the two sides of pressing wire pressing wire board board, then pull the pressing wire board outwards.
- Page 42 Service Manual Step Procedure 12.Remove liquid level switch Loosen clasps fixing liquid level switch to remove liquid level switch. liquid level switch 13.Remove condenser and evaporator assembly condenser and evaporator assembly discharge refrigerant spots weld here Unscrew 2 screws fixing condenser and evaporator assembly, unsolder spots weld screws of condenser and evaporator to remove...
- Page 43 Service Manual Step Procedure 15.Remove suction pipe and discharge pipe suction pipe spots weld Remove suction pipe and discharge pipe from the unsoldering place of compressor (Note: Discharge the refrigerant first discharge pipe before unsoldering.). 16.Remove compressor compressor Unscrew 3 foot nuts with washer fixing compressor by wrench to remove compressor.
- Page 44 Service Manual Step Procedure 2.Remove panel screws Unscrew 2 screws fixing panel, hold the bottom panel and slip a certain height upward, handle the bottom panel and pull it outwards. panel screws 3. Remove control cover plate assembly Unscrew 3 screws connecting control cover plate and facing-piece to remove control cover plate assembly display board...
- Page 45 Service Manual Step Procedure 20.Remove electric box assembly screws Unscrew screws fixing fan and compressor capacity, then remove fan capacity and compressor capacity; pull the mainboard along the two sides groove. capacity mainboard Installation and Maintenance...
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Page 46: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius( Celsius( Celsius( temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63... -
Page 47: Appendix 2: Resistance Table Of Temperature Sensor
Service Manual Appendix 2: Resistance Table of Temperature Sensor Resistance Table of Ambient Temperature Sensor (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68... - Page 48 Service Manual Resistance Table of Tube Temperature Sensors (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14...
- Page 49 Service Manual Resistance Table of Discharge Temperature Sensor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6 73.83...
- Page 50 Service Manual Resistance Table of Ambient Temperature Sensor (100K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 925.998 136.845 28.638 7.918 876.141 130.752 27.600 7.676 829.261 124.961 26.606 7.443 785.155 119.456 25.652 7.218 743.636 114.221 24.737 7.000 704.532 109.242 23.858 6.790...
- Page 51 Service Manual Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 2.678 1.312 0.705 0.384 2.610 1.284 0.691 0.376 2.543 1.256 0.677 0.369 2.479 1.229 0.664 0.362 2.417 1.203 0.650 0.355 2.357 1.178 0.637 0.348 2.229 1.153 0.625 0.341 2.242 1.129 0.612...
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Page 52: Appendix 3: Resistance Value Table Of Humidity Sensor
Service Manual Appendix 3: Resistance Value Table of Humidity Sensor HIS-06 temperature and humidity characteristic5 C~14 Unit:KΩ Relative Temperature( humidity 5.35 4.92 4.55 4.23 3.95 3.70 3.47 3.25 3.05 2.87 5.80 5.33 4.93 4.58 4.27 4.00 3.74 3.51 3.29 3.09 6.29 5.77 5.33... - Page 53 Service Manual 1128.50 1033.61 953.39 883.90 822.61 767.78 704.83 647.37 594.51 545.56 1325.87 1213.40 1118.31 1035.94 963.29 898.30 823.48 755.17 692.34 634.16 1563.51 1430.14 1317.38 1219.71 1133.55 1056.48 967.04 885.39 810.28 740.74 1855.67 1695.83 1560.69 1443.63 1340.37 1248.00 1140.34 1042.06 951.64 867.93 2213.60...
- Page 54 Service Manual 50.20 46.55 43.12 39.89 36.83 33.93 31.76 29.69 27.71 25.82 56.00 51.92 48.08 44.47 41.05 37.80 35.35 33.02 30.79 28.65 62.80 58.20 53.88 49.80 45.95 42.29 39.51 36.87 34.34 31.92 70.00 64.95 60.21 55.74 51.51 47.50 44.33 41.31 38.42 35.65 78.80...
- Page 55 Service Manual 5.49 5.21 4.94 4.68 4.43 4.19 3.97 3.75 3.54 3.34 5.93 5.62 5.33 5.04 4.77 4.50 4.26 4.02 3.80 3.57 6.49 6.13 5.79 5.46 5.14 4.84 4.57 4.32 4.07 3.83 7.00 6.61 6.24 5.88 5.53 5.20 4.91 4.63 4.35 4.09 7.59...
- Page 56 Service Manual HIS-06 Characteristic of temperature and humidity 35 C~ 45 Unit:KΩ Relative Temperature( humidity 1.20 1.17 1.14 1.11 1.08 1.05 1.02 1.00 0.98 0.95 0.93 1.27 1.23 1.20 1.16 1.13 1.10 1.07 1.05 1.02 1.00 0.97 1.34 1.30 1.26 1.22 1.19 1.15...
- Page 57 Service Manual 43.60 40.77 38.02 35.35 32.74 30.20 28.45 26.73 25.06 23.43 21.83 48.20 45.06 42.00 39.02 36.13 33.30 31.40 29.55 27.74 25.97 24.25 54.00 50.43 46.97 43.59 40.30 37.10 34.98 32.92 30.90 28.93 27.00 60.60 56.63 52.78 49.02 45.36 41.80 39.36 36.98...
- Page 58 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 Email: gree@gree.com.cn Http://www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK Tel: (852) 31658898 Fax: (852) 31651029...
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