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Technical Information

Service Manual

Silk Screen on Display Board1

● Top view

● Bottom view

1 Buzzer

2 Needle stand of pipe temperature sensor

3 Dual-8 digital display tube

4

Connection wire of breathing

light board

5 Connection wire of board

6

Needle stand of humidity and 
ambient temperature sensor 

7 Power supply indicator

8 On/off button

9 Continuous button

10 Mode button

11 "+" button

12 "-" button

13 Fan speed button

14 Timer button

15 Filter button

1

2

3

4

5

6

7

8

9

10

11

12

14

15

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Summary of Contents for GDN20AQ-E4EBA1A

Page 1: ...Service Manual GREE ELECTRIC APPLIANCES INC OF ZHUHAI Change for Life Service Manual Model GDN20AQ E4EBA1A GDN24AQ E4EBA1A Refrigerant R134a...

Page 2: ...n 8 6 2 Introduction of Basic Mode Function 10 Part Maintenance 11 7 Notes Maintenance 11 8 Maintenance 13 8 1 Error Code 13 8 2 Malfunction Detection Flowchart 14 8 3 Maintenance Method for Common Ma...

Page 3: ...1 Technical Information Service Manual 1 Summary Part Technical Information...

Page 4: ...ure for the Discharge Side MPa 1 7 1 7 Permissible Excessive Operating Pressure for the Suction Side MPa 0 6 0 6 Dimension WXHXD mm 351X492X260 351X492X260 Dimension of Carton Box LXWXH mm 404X326X515...

Page 5: ...3 Technical Information Service Manual 3 Outline Dimension Diagram unit mm 492 521 260 351...

Page 6: ...rator and condenser in turn and then be discharged due to centrifugal blade When the air is passing through evaporator refrigerant will absorb the heat in air to let its temperature decrease to the te...

Page 7: ...olet OG Orange 5 Electrical Part 5 1 Wiring Diagram Instruction These circuit diagrames are subject to change without notice please refer to the one supplied with the unit AC L YEGN 0 TUBE TEMP SENSOR...

Page 8: ...reen on Main Board 5 2 PCB Printed Diagram Top view Bottom view No Name No Name 1 Interface of water level switch of watertank 4 Interface of fan motor 2 Interface of display board 5 Interface of neut...

Page 9: ...Dual 8 digital display tube 4 Connection wire of breathing light board 5 Connection wire of board 6 Needle stand of humidity and ambient temperature sensor 7 Power supply indicator 8 On off button 9...

Page 10: ...idity The display range of humidity is 35 80 Each pressing will increase decrease humidity by 5 When setting Timer On or Timer Off press these buttons to adjust time For specific details please refer...

Page 11: ...all mode indicators are OFF MODE Button 5 Press this button to turn off Filter Cleaning Indicator When dehumidifier has been operating for 250 hours Filter Cleaning Indicator will be lit up to remind...

Page 12: ...t temperature sensor malfunction on off button water blow protection after compressor starts up it will stop after it runs for 3min at least 3 Detection for temperature sensor malfunction Temperature...

Page 13: ...cialized power cord or connection wire from the manufacture or distributor Prohibit prolong the wire by yourself 7 Replace the fuse with a new one of the same specification if it is burnt down don t r...

Page 14: ...he dehumidifier no more than 45 Aim the shaft of castor at the installation hole on chassis and then forcibly push the castor upward to let the locating ring on the shaft of castor stick together with...

Page 15: ...on of tube temp sensor F2 1 The wiring terminal between evaporator temperature sensor and main board is loosened or poorly contacted 2 There s short circuit due to the trip over of the parts on contro...

Page 16: ...yes yes Malfunction is removed no yes yes no Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted Is there short circuit due to trip over of the par ts Is...

Page 17: ...s yes no no no no no no End check the connection Is malfunction eliminated Is malfunction Is malfunction eliminated eliminated Replace the display board with the same model Replace the humidity sensor...

Page 18: ...an the filter Placing position of water tank is improper Check whether there re obstacles around the dehumidifier blocked the air outlet Make sure there re no obstacles around the dehumidifiers Refrig...

Page 19: ...ge channel Possible causes Discriminating method dehumidifier status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires accordi...

Page 20: ...18 Maintenance Service Manual 9 Exploded View and Parts List...

Page 21: ...200007 00012200007 1 22 Display Board D10803N 30568312 30568312 1 23 Electric Box Cover 20126181 20126181 1 24 Membrane 63066514 63066514 1 25 Temperature Sensor 390000599 390000599 1 26 Filter Sub As...

Page 22: ...tank assembly 3 Remove back cover 2 Remove filter water tank assembly Pull the water tank onwards to remove the water tank assembly Press the 2 clasps of filter to make the groove loosened then pull...

Page 23: ...box cover electric box cover screws Disassemble the wires connected to the main board capacitor take out the humidity sensor and ambient sensor twist off the 2 screws used for fixing the top cover and...

Page 24: ...te screws 6 Remove front case sub assy 7 Remove cover plate Twist off the 5 screws and 3 clasps used for tightening the cover plate and then remove the cover plate Twist off the 7 screws and 3 clasps...

Page 25: ...condenser unsolder the soldering joint connected to the condenser and evaporator respectively and then remove the evaporator and condenser sub assy Note Release all the refrigerant completely before...

Page 26: ...Twist off the screws and then remove the power cord Unsolder the suction pipe and discharge from the soldering place of suction outlet and discharge outlet on compressor Note Release all the refriger...

Page 27: ...Remove the other three castors by the same method Twist off the 6 screws used for fixing the air ductand then remove the moot handle Twist off the nut for fixing the fan blade and then remove it screw...

Page 28: ...Service Manual capacitor screws Procedure Step 20 Remove the main board 21 Remove the capacitor Pull out the main board box then remove the main board Twist off the screws used for fixing the capacit...

Page 29: ...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...

Page 30: ...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 3...

Page 31: ...9 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 1...

Page 32: ...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...

Page 33: ...32 73 954 70 17 370 108 5 191 5 416 865 33 70 902 71 16 782 109 5 042 4 396 114 34 67 993 72 16 217 110 4 898 3 376 487 35 65 218 73 15 673 111 4 758 2 357 918 36 62 572 74 15 150 112 4 624 1 340 348...

Page 34: ...317 143 2 032 173 1 038 203 0 565 233 0 311 144 1 983 174 1 017 204 0 553 234 0 305 145 1 936 175 0 996 205 0 542 235 0 300 146 1 890 176 0 975 206 0 531 236 0 295 147 1 846 177 0 956 207 0 521 237 0...

Page 35: ...6 34 24 42 22 65 64 48 75 44 81 41 48 38 59 36 05 33 77 31 24 28 93 26 80 24 83 63 53 64 49 31 45 65 42 48 39 68 37 17 34 34 31 74 29 36 27 15 62 59 14 54 36 50 32 46 82 43 73 40 97 37 83 34 96 32 32...

Page 36: ...2 13 20 51 18 97 17 73 16 55 15 42 14 34 61 30 33 28 17 26 14 24 23 22 42 20 71 19 37 18 10 16 88 15 72 60 33 47 31 05 28 78 26 64 24 62 22 70 21 24 19 84 18 50 17 23 59 37 00 34 31 31 77 29 39 27 13...

Page 37: ...863 43 787 81 715 55 646 36 30 1906 00 1731 91 1568 38 1414 20 1268 36 1130 00 1034 60 943 64 856 73 773 51 29 2300 00 2089 81 1892 37 1706 22 1530 13 1363 08 1244 55 1131 54 1023 56 920 17 28 2810 0...

Page 38: ...13 68 48 63 03 57 78 52 70 49 02 45 46 42 00 38 65 44 89 00 82 54 76 32 70 33 64 54 58 96 54 75 50 69 46 74 42 92 43 101 00 93 48 86 25 79 28 72 55 66 06 61 28 56 65 52 17 47 82 42 115 00 106 23 97 79...

Page 39: ...1 3 73 3 55 3 37 3 20 3 07 2 94 2 82 2 70 2 58 68 4 40 4 19 3 99 3 79 3 60 3 41 3 27 3 13 2 99 2 86 2 73 67 4 71 4 49 4 27 4 06 3 85 3 65 3 49 3 34 3 19 3 05 2 90 66 5 08 4 83 4 59 4 36 4 13 3 91 3 74...

Page 40: ...48 50 135 08 122 00 114 10 106 40 98 87 91 52 84 34 31 227 00 209 28 192 04 175 27 158 93 143 00 133 62 124 46 115 52 106 79 98 25 30 268 00 247 75 228 05 208 88 190 20 172 00 160 04 148 37 136 97 125...

Page 41: ...d 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 Towe...

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