Service Manual Change for Life Service Manual Models: GDN12AJ-K4EBC1A GDN12AJ-K4EBC1B GDN16AJ-K4EBC1A (Refrigerant R134a) GREE ELECTRIC APPLIANCES,INC.
Service Manual Table of Contents Part Ⅰ : Technical Information ............................................................ 1 1. Summary .................................................................................................... 1 2. Specifications .......................................................................................... 2 3. Outline Dimension Diagram ............................................................. 3 4. Refrigerant System Diagram ....................................
Service Manual Part Ⅰ : Technical Information 1.
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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.
Service Manual 5.Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol WH White YE Yellow RD Name GN Green COMP BN Brown Red BU Blue / / YEGN Yellow/Green BK Black / / VT Violet OG Orange / / Compressor Grounding wire TUBE TEMP.
Service Manual 5.2 PCB Printed Diagram Silk Screen on Main Board ● Top view 6 1 2 5 4 3 No. 2 Name Needle stand of board connection wire Needle stand of fan 3 Interface of live wire 1 Description No.
Service Manual Silk Screen on Display Board ● Top view 16 15 17 14 13 12 11 10 9 18 8 19 7 20 6 1 1 Timer button 2 Buzzer 2 3 4 5 8 Indicator of dehumidifying continuously 15 Indicator of high fan speed Connection between humidity sensor 9 16 Button for setting humidity (+) (needle stand) 3 Fan speed button 10 Power indicator 4 ON/OFF button 11 Button for setting humidity (-) 5 12 Indicator for bucket full protection Needle stand for tube temperature sensor 19 4H timer indicator 13 Du
Service Manual 6.Function and Control 6.1 Control Panel Instruction 3 4 High and Low fan indicator lights Bucket full light indicates bucket needs to be emptied or it is not in the proper place 4 hour or 2 hour delay on/off indicator lights Continuous operation on indicator light Power On indicator light Clean the Filter indicator light 6 1.ON/OFF Pad 5 1 2 Press to turn the dehumidifier on or off. 2.
Service Manual 6.2 Introduction of Basic Mode Function 1. Basic functions of system (1) Drying mode ① Dry conditions and process: under operation status a. When set humifity≤ambient humidity-5%, compressor and fan will operate. b. When set humidity≥ambient humidity+5%, compressor stop operation and fan will stop operation after 3min. c.
Service Manual FILTER button and then this indicator is off. BUCKET FULL indicator: the indicator blinks if bucket full protection is occurred or the water tank hasn’t been installed well. (3) Timer OFF control 2h or 4h timer OFF can be set. Timer off can be set under on status. Timer setting is recorded every 30min by memory function. (4) Display of nixie tube (green) Under on status, the nixie tube displays current humidity. Press "+" button or "-" button to display set humidity.
Service Manual Part Ⅱ : Maintenance 7.Notes Maintenance Safety Precautions: Important! Please read the safety precautions carefully before maintenance： The following contents are very important for installation and maintenance. Please follow the instructions below. ● The 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. ● Be caution during maintenance.
Service Manual 8.Maintenance 8.1 Error Code No. 1 Malfunction Name Malfunction of ambient temp. sensor Nixie tube display Unit status F1 The compressor, fan and water pump stop; buttons are invalid 2 12 Malfunction of tube temp. sensor F2 Possible Causes 1. The wiring terminal between ambient temperature sensor and main board is loosened or poorly contacted; 2. There’s short circuit due to trip-over of the parts on controller; 3.
Service Manual 8.2 Malfunction Detection Flowchart Malfunction of temperature sensor F1, F2 Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? yes Insert the temperature sensor tightly no no Is there short circuit due to trip over of the par ts? Malfunction is eliminated. yes Make the parts upright no no Is the temperature sensor normal according to the Resistance Table? Malfunction is eliminated.
Service Manual 8.3 Maintenance Method for Common Malfunction 1.The Unit Can’t Start Up Possible causes Discriminating method (dehumidifier status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery. If not, check power supply circuit and make sure the power plug is connection for power plug and the buzzer can't give out sound connected well.
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Service Manual Warning: disconnect power supply before removal; discharge the refrigerant completely before unsoldering the pipes. 10.Removal Procedure GDN12AJ-K4EBC1A GDN16AJ-K4EBC1A GDN12AJ-K4EBC1B Take GDN12AJ-K4EBC1A GDN16AJ-K4EBC1A for example. Steps Procedure 1 Before disassembly 2 Remove tank Draw the tank outwards to remove the tank. tank 3 Remove front panel Remove 2 screws showing in the picture and hold the bottom to draw it. The front panel can be removed.
Service Manual Steps 4 Procedure rear case Remove rear case Loosen 2 clasps on the filter and then remove the filter. Remove 6 connection screws fixing rear case. Remove 2 wire clamps and then remove rear case. filter wire clamps screws top cover 5 Remove top cover Remove connection screws fixing top cover (6 screws on the side, 5 screws on the front face). Lift the top cover to remove it. a. Remove side plates Remove connection screws fixing side plates (2 screws on each side).
Service Manual Steps 6 Procedure Remove air duct Remove 2 connection screws between air duct and water tray. Lift the air duct up to remove it. a. Remove cover plate ( air duct) Remove 2 connection screws and then remove the cover plate. b. Remove flow guide loop Remove 4 connections screws and then remove the flow guide loop. c. Remove centrifugal fan blade Remove nut fixing centrifugal fan blade. Then remove the fan blade.(as shown in fig3). d.
Service Manual Steps Procedure evaporator 7 Remove condenser and evaporator Unsolder pipe connecting to aspiration/ discharge pipe. Then remove condenser and evaporator. (Note: before unsoldering, discharge refrigerant completely. 8 Remove electric box cover and electric box Loosen 5 clasps between electric box cover and electric box. Then remove electric box cover. Then remove 2 connection screws showing in fig 2 and remove electric box subsequently.
Service Manual Steps Procedure discharge pipe 10 11 12 Remove aspiration and discharge pipes Unsolder pipe connecting to compressor. Then remove aspiration and discharge pipes. Remove compressor Remove 3 hold-down nuts of compressor and then remove compressor. aspiration pipe compressor nuts Remove power cord Remove 2 screws showing in the picture and then remove wire clamp. Then remove power cord. screws 13 Remove castors Remove 8 connection screws of 4 castors. Then remove the castors.
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 display Celsius（℃） temperature （℉） （℉） 61 60.8 16 62/63 62.6 17 64/65 64.4 18 66/67 66.2 19 68 68 20 Fahrenheit Fahrenheit display Celsius（℃） temperature （℉） （℉） 69/70 69.8 21 71/72 71.6 22 73/74 73.4 23 75/76 75.
Service Manual Appendix 2: Resistance Table of Temperature Sensor Resistance Table of Ambient Temperature Sensor (15K) 26 Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) -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 -16 121.6 22 17.14 61 3.579 100 1.009 115 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.
Service Manual Resistance Table of Tube Temperature Sensors (20K) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) -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.
Service Manual Resistance Table of Discharge Temperature Sensor (50K) 28 Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) -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 -25 660.8 13 84.95 52 16.36 91 4.33 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.
Service Manual Appendix 3: Resistance Value Table of Humidity Sensor HIS-06 temperature and humidity characteristic5℃～ 14℃ Relative humidity %RH 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 Maintenance Unit:KΩ Temperature（℃） 5℃ 5.35 5.80 6.29 6.82 7.40 8.03 8.71 9.44 10.25 11.13 12.09 13.14 14.27 15.50 16.84 18.31 19.91 21.67 23.61 25.78 28.15 30.78 33.69 36.90 40.45 44.38 48.75 53.64 59.14 65.
Service Manual 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 1128.50 1325.87 1563.51 1855.67 2213.60 2665.63 3230.73 3962.78 4915.40 6180.16 7874.08 10162.49 13243.42 17366.01 22845.46 30130.06 39673.45 51880.00 68057.37 1033.61 1213.40 1430.14 1695.83 2020.33 2426.92 2933.36 3585.59 4431.65 5548.66 7035.10 9029.08 11702.63 15270.67 20023.30 26367.98 34712.87 45447.42 59623.21 953.39 1118.31 1317.38 1560.69 1856.92 2225.10 2681.95 3266.69 4022.65 5014.73 6325.74 8070.80 10399.92 13499.
Service Manual 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 50.20 56.00 62.80 70.00 78.80 88.00 99.10 111.00 126.20 142.60 162.00 185.00 212.00 243.00 280.00 324.00 375.30 431.00 500.00 580.00 676.00 790.00 930.00 1110.00 1320.00 1590.00 1906.00 2300.00 2810.00 3470.00 4290.00 5348.00 6800.00 8720.00 11500.00 15000.00 19368.00 46.55 51.92 58.20 64.95 73.12 81.79 92.12 103.28 117.27 132.48 150.38 171.49 196.23 224.65 258.38 298.37 344.
Service Manual 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 32 5.49 5.93 6.49 7.00 7.59 8.20 8.82 9.60 10.40 11.30 12.30 13.30 14.60 16.00 17.60 19.40 21.60 24.00 26.60 29.60 33.00 36.90 41.00 45.80 50.70 56.70 64.00 71.00 80.00 89.00 101.00 115.00 131.00 149.90 170.00 196.00 225.00 260.00 302.00 352.00 415.00 490.00 580.00 693.69 821.00 982.00 1190.00 1420.00 1750.00 2200.00 2800.00 3590.
Service Manual HIS-06 Characteristic of temperature and humidity 35℃ ~ 45℃ Unit:KΩ Relative humidity %RH 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 Maintenance Temperature（℃） 35℃ 1.20 1.27 1.34 1.42 1.50 1.58 1.67 1.76 1.86 1.97 2.08 2.20 2.33 2.48 2.62 2.78 2.96 3.14 3.36 3.60 3.83 4.10 4.40 4.71 5.08 5.45 5.88 6.31 6.84 7.40 8.05 8.78 9.61 10.58 11.61 12.80 14.10 15.60 17.22 19.10 21.18 23.40 26.00 28.
Service Manual 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 34 43.60 48.20 54.00 60.60 68.60 78.10 89.40 103.00 119.00 139.00 162.00 191.00 227.00 268.00 315.00 372.00 441.00 528.00 640.00 791.00 993.00 1260.00 1600.00 2053.00 40.77 45.06 50.43 56.63 64.04 72.70 82.99 95.43 110.35 129.32 149.97 176.44 209.28 247.75 291.16 342.25 404.50 484.54 590.21 735.73 926.97 1171.18 1476.79 1880.43 38.02 42.00 46.97 52.78 59.61 67.45 76.75 88.06 101.94 119.90 138.28 162.29 192.04 228.
JF00302364 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.
