Gree GWH07QC-D3DNA1D/O Service Manual
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Gree GWH07QC-D3DNA1D/O Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GWH07QC-D3DNA1D/O

  • Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    6.1 Remote Controller Introduction of YAN1F6F(WiFi) ............63 6.2 Remote Controller Introduction of YV1FB9F(WiFi) ............68 6.3 Remote Controller Introduction of YAN1F10F(WiFi) ............72 6.4 GREE+ App Operation Manual ..................77 6.5 Ewpe Smart App Operation Manual ................78 6.6 Brief Description of Modes and Functions ..............79 Part Ⅱ...
  • Page 3 Service Manual 9. Maintenance ......................105 9.1 Error Code List ......................105 9.2 Troubleshooting for Main Malfunction ................112 9.3 Troubleshooting for Normal Malfunction ...............130 10. Exploded View and Parts List ............132 10.1 Indoor Unit ........................132 10.2 Outdoor Unit .......................150 11. Removal Procedure ..................176 11.1 Removal Procedure of Indoor Unit ................176 11.2 Removal Procedure of Outdoor Unit ................186...

  • Page 4: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit Outdoor Unit GWH07QC-D3DNA1D/O GWC12AFC-D3DNA1A/O GWH12AFC-D3DNA1A/O Technical Information...
  • Page 5 Service Manual GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O GWC09AFC-D3DNA1A/O GWH09AFC-D3DNA1A/O GWC12QC-D3DNB2M/O GWH12QC-D3DNB2M/O GWC09QB-D3DNB2J/O GWH09QB-D3DNB2J/O GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O GWC24AFE-D3DNA1A/O GWH24AFE-D3DNA1A/O GWC18AFD-D3DNA1A/O GWC24QE-D3DNB2R/O GWH24QE-D3DNB2R/O Technical Information...
  • Page 6 Indoor model Outdoor model code product code Controller YV1FB9F 1 GWH07QC-D3DNB2D CB432020800 GWH07QC-D3DNB2D/I CB432N20800 GWH07QC-D3DNA1D/O CB432W20800 (WiFi) 2 GWH09QB-D3DNC6L CB443004600 GWH09QB-D3DNC6L/I CB443N04600 GWH09QB-D3DNC6L/O CB443W04600 3 GWH12QC-D3DNC6L CB443004700 GWH12QC-D3DNC6L/I CB443N04700 GWH12QC-D3DNC6L/O CB443W04700 YAN1F6F (WiFi) 4 GWH18QD-D3DNC6L CB443004800 GWH18QD-D3DNC6L/I CB443N04800 GWH18QD-D3DNC6L/O CB443W04800...

  • Page 7: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet Model GWH09QB-D3DNC6L GWH12QC-D3DNC6L Product Code CB443004600 CB443004700 Rated Voltage 208/230 208/230 Rated Frequency Power Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9200(909~9600) 12100(3753~12500) Heating Capacity(Min~Max) Btu/h 10000(3100~12000) 12900(3924~14000) Cooling Power Input(Min~Max) 867(375~1300) 1150(410~1350) Heating Power Input(Min~Max)
  • Page 8 Service Manual Model of Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O Outdoor Unit Product Code CB443W04600 CB443W04700 ZHUHAI GREE DAIKIN DEVICE ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO,LTD. CO.,LTD Compressor Model QXA-B102zE190 QXA-B102zE190 Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A)
  • Page 9 Service Manual 1.GWC09QC-D3DND8C 2.GWC09QC-D3DNB2C Model 3.GWC09QC-D3DNC2C 4.GWC09QC-D3DND4C 1.CB459006600 2.CB432023400 Product Code 3.CB439015300 4.CB464003200 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9000 Heating Capacity Btu/h Cooling Power Input Heating Power Input Cooling Power Current 3.25 Heating Power Current Rated Input...
  • Page 10 Service Manual Model of Outdoor Unit GWC09AFC-D3DNA1A/O Outdoor Unit Product Code CB348W03300 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A079zE190A Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 11 Service Manual Model GWH09QC-D3DND8A Product Code CB459006900 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9000 Heating Capacity Btu/h 10000 Cooling Power Input Heating Power Input Cooling Power Current 3.25 Heating Power Current 3.75 Rated Input 1450...
  • Page 12 Service Manual Model of Outdoor Unit GWH09AFC-D3DNA1A/O Outdoor Unit Product Code CB348W03400 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A079zE190A Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 13 Service Manual Model GWC12QC-D3DNB2M Product Code CB432022700 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h Cooling Power Input 1256 Heating Power Input Cooling Power Current Heating Power Current Rated Input 1450 Rated Current Air Flow Volume(SH/H/M/L)
  • Page 14 Service Manual Model of Outdoor Unit GWC12QC-D3DNB2M/O Outdoor Unit Product Code CB432W22700 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Capillary Operation temp ºF...
  • Page 15 Service Manual Model GWH12QC-D3DNB2M Product Code CB432022600 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h 13000 Cooling Power Input 1297 Heating Power Input 1172 Cooling Power Current Heating Power Current Rated Input 1500 Rated Current...
  • Page 16 Service Manual Model of Outdoor Unit GWH12QC-D3DNB2M/O Outdoor Unit Product Code CB432W22600 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Capillary Operation temp ºF...
  • Page 17 Service Manual 1.GWC12QC-D3DND8C 2.GWC12QC-D3DNB2C Model 3.GWC12QC-D3DNC2C 4.GWC12QC-D3DND4C 1.CB459006700 2. CB432023200 Product Code 3.CB439015400 4.CB464003100 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h Cooling Power Input 1089 Heating Power Input Cooling Power Current 4.73 Heating Power Current...
  • Page 18 Service Manual Model of Outdoor Unit GWC12AFC-D3DNA1A/O Outdoor Unit Product Code CB348W03500 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 19 Service Manual Model GWH12QC-D3DND8A Product Code CB459007000 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h 13000 Cooling Power Input 1089 Heating Power Input 1126 Cooling Power Current 4.73 Heating Power Current 4.90 Rated Input 1600...
  • Page 20 Service Manual Model of Outdoor Unit GWH12AFC-D3DNA1A/O Outdoor Unit Product Code CB348W03600 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 21 Service Manual 1.GWC24QE-D3DND8C 2.GWC24QE-D3DNB2C Model 3.GWC24QE-D3DNC2C 4.GWC24QE-D3DND4C 1.CB459006800 2.CB432023500 Product Code 3. CB439015100 4.CB464003000 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 22000 Heating Capacity Btu/h Cooling Power Input 1870 Heating Power Input Cooling Power Current Heating Power Current Rated Input...
  • Page 22 Service Manual Model of Outdoor Unit GWC24AFE-D3DNA1A/O Outdoor Unit Product Code CB348W03200 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXFS-D25zX090H Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 2420 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 23 Service Manual Model GWH24QE-D3DND8A Product Code CB459007100 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 22000 Heating Capacity Btu/h 24000 Cooling Power Input 1870 Heating Power Input 2020 Cooling Power Current Heating Power Current 8.78 Rated Input 2860...
  • Page 24 Service Manual Model of Outdoor Unit GWH24AFE-D3DNA1A/O Outdoor Unit Product Code CB348W03100 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXFS-D25zX090H Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 2420 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Electron expansion valve Operation temp ºF...
  • Page 25 Service Manual Model GWH18QD-D3DNC6L GWH24QE-D3DNC6O Product Code CB443004800 CB443005000 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 17800(3412~20472) 22800(8630~23200) Heating Capacity(Min~Max) Btu/h 19800(3412~21837) 25000(8650~26000) Cooling Power Input(Min~Max) 1820(80~2350) 2260(600~27000) Heating Power Input(Min~Max) 2090(220~2350) 2300(610~2750) Cooling Power Current...
  • Page 26 Service Manual Model of Outdoor Unit GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O Outdoor Unit Product Code CB443W04800 CB443W05000 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model QXA-B141zF030A QXA-B141zF030A Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.08 12.18...
  • Page 27 Service Manual Model GWH07QC-D3DNB2D Product Code CB432020800 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 9000(3100~9600) Heating Capacity(Min~Max) Btu/h 11000(1911~12000) Cooling Power Input(Min~Max) 630(160~1300) Heating Power Input(Min~Max) 1020(160~1350) Cooling Power Current 2.80 Heating Power Current 3.50 Rated Input 1350...
  • Page 28 Service Manual Model of Outdoor Unit GWH07QC-D3DNA1D/O Outdoor Unit Product Code CB432W20800 Compressor Manufacturer/Trademark ZHUHAI GREE DAIKIN DEVICE CO.,LTD Compressor Model 1GDY23AXD Compressor Oil DAPHNE FVC50K Compressor Type Swing Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input Overload Protector...
  • Page 29 Service Manual 1.GWC18QD-D3DND8A 2.GWC18QD-D3DNB2C Model 3.GWC18QD-D3DNC2A 4.GWC18QD-D3DND4A 1.CB459007200 2.CB432023300 Product Code 3.CB439015500 4.CB464003300 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 17400 Heating Capacity Btu/h Cooling Power Input 1730 Heating Power Input Cooling Power Current Heating Power Current Rated Input 2000...
  • Page 30 Service Manual Model of Outdoor Unit GWC18AFD-D3DNA1A/O Outdoor Unit Product Code CB348W04700 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO. LTD. Compressor Model QXF-A102zE190C Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector 1NT11L-6233/KSD115ºC/HPC 115/95 Throttling Method Electron expansion valve...
  • Page 31 Service Manual Model GWC24QE-D3DNB2R GWH24QE-D3DNB2R Product Code CB432021600 CB432021500 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 22000 22000 Heating Capacity(Min~Max) Btu/h 24000 Cooling Power Input(Min~Max) 2010 1950 Heating Power Input(Min~Max) 2070 Cooling Power Current 8.50...
  • Page 32 Service Manual Model of Outdoor Unit GWC24QE-D3DNB2R/O GWH24QE-D3DNB2R/O Outdoor Unit Product Code CB432W21600 CB432W21500 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model QXFS-B181zX030AA QXFS-B181zX030AA Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Twin Rotary Twin Rotary Compressor Locked Rotor Amp (L.R.A) 25.00...
  • Page 33 Service Manual Model GWC09QB-D3DNB2J Product Code CB432021900 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 9100(2457~9600) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 833(185~1020) Heating Power Input(Min~Max) Cooling Power Current Heating Power Current Rated Input 1020 Rated Current Air Flow Volume(SH/H/M/L)
  • Page 34 Service Manual Model of Outdoor Unit GWC09QB-D3DNB2J/O Outdoor Unit Product Code CB432W21900 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A079zE190A Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input Overload Protector HPC115/95U1 KSD115℃...
  • Page 35 Service Manual Model GWH09QB-D3DNB2J Product Code CB432021800 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 9100(2457~9600) Heating Capacity(Min~Max) Btu/h 9500 (2457~11500) Cooling Power Input(Min~Max) 889(185~1100) Heating Power Input(Min~Max) 774(170~1350) Cooling Power Current Heating Power Current Rated Input 1350 Rated Current...
  • Page 36 Service Manual Model of Outdoor Unit GWH09QB-D3DNB2J/O Outdoor Unit Product Code CB432W21800 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A079zE190A Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input Overload Protector HPC115/95U1 KSD115℃...

  • Page 37: Operation Characteristic Curve

    Service Manual 2.2 Operation Characteristic Curve Heating Cooling 220V 220V • Conditions Indoor : DB80˚F/WB66.9˚F Outdoor : DB95˚F Indoor air flow : High Pipe lengt : 24.6ft 230V 230V 240V • Conditions Indoor : DB70˚F/WB60˚F 240V Outdoor : DB19.94˚F/WB19.04˚F Indoor air flow : High Pipe lengt : 24.6ft Compressor frequency(Hz) Compressor frequency(Hz)

  • Page 38: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual Heating operation ambient temperature range is -13°F~75°F Conditions Conditions Indoor:DB80°F/WB66.9°F Indoor:DB80°F/WB66.9°F Outdoor:DB95°F Outdoor:DB95°F Outdoor temp.(°C) Indoor air flow:Super High Indoor air flow:Super High Pipe length:24.6ft Pipe length:24.6ft 104 105.8 107.6 109.4 89.6 91.4 93.2 96.8 98.6 100.4 102.2 75.2 Outdoor temp.(°C) Outdoor temp.(°F)

  • Page 39: Noise Curve

    Service Manual 2.5 Noise Curve GWH07QC-D3DNB2D GWH09QB-D3DNC6L GWH12QC-D3DNC6L GWC12QC-D3DNB2M GWH12QC-D3DNB2M Indoor side noise when blowing Outdoor side noise when blowing 07/09&12K Heating 09&12K Cooling Super High Middle High Indoor fan motor rotating speed Compressor frequency(Hz) GWC12QC-D3DNB2M 07/09K GWH12QC-D3DNB2M GWH18QD-D3DNC6L GWH24QE-D3DNC6O GWC24QE-D3DNB2R GWH24QE-D3DNB2R Indoor side noise Outdoor side noise Heating...
  • Page 40 Service Manual GWC09QC-D3DND8C GWH09QC-D3DND8A GWC12QC-D3DND8C GWC12QC-D3DNB2C GWC12QC-D3DNC2C GWC12QC-D3DND4C GWH12QC-D3DND8A GWC24QE-D3DND8C GWH24QE-D3DND8A GWC18QD-D3DNB2C GWC18QD-D3DNC2A GWC18QD-D3DND4A GWC18QD-D3DND8A GWC24QE-D3DNB2C GWC24QE-D3DNC2C GWC24QE-D3DND4C Indoor side noise Outdoor side noise Heating Cooling 09/12K Compressor frequency(Hz) Indoor fan motor rating speed GWC09QB-D3DNB2J GWH09QB-D3DNB2J Indoor side noise when blowing Outdoor side noise when blowing Heating Cooling...

  • Page 41: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 6 5/8 18 3/16 6 5/16 4 11/16 21 5/16 7 1/4 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 2 1/8 1 3/8 2 1/8 1 3/8 3 1/2 3 5/16 8 1/8 7 5/16 7 3/16...

  • Page 42: Outdoor Unit

    Service Manual 3.2 Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O GWC09AFC-D3DNA1A/O GWH09AFC-D3DNA1A/O GWC12QC-D3DNB2M/O GWH12QC-D3DNB2M/O GWC09QB-D3DNB2J/O GWH09QB-D3DNB2J/O 10 1/8 30 9/16 12 5/8 Unit:inch GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O GWC24AFE-D3DNA1A/O GWH24AFE-D3DNA1A/O 13 3/8 15 5/8 Unit: inch Technical Information...
  • Page 43 Service Manual GWC12AFC-D3DNA1A/O GWH12AFC-D3DNA1A/O 12 19/32 33 25/64 23 5/16 Unit: inch GWH07QC-D3DNA1D/O 12 19/32 33 13/32 23 5/16 Unit: inch Technical Information...
  • Page 44 Service Manual GWC18AFD-D3DNA1A/O 32 3/16 14 7/8 35 3/8 21 2/3 Unit:inch GWC24QE-D3DNB2R/O GWH24QE-D3DNB2R/O 12 11/64 33 7/64 35 29/32 14 11/16 22 29/32 Unit:inch Technical Information...

  • Page 45: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram All model except: GWC12QC-D3DNB2M GWH12QC-D3DNB2M GWC09QB-D3DNB2J GWH09QB-D3DNB2J Cooling model Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Electron Capillary Strainer expansion...
  • Page 46 Service Manual GWC12QC-D3DNB2M、GWH12QC-D3DNB2M GWC09QB-D3DNB2J GWH09QB-D3DNB2J Cooling only models Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Cooling and heating models Outdoor unit Indoor unit Gas pipe side...

  • Page 47: Electrical Part

    Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 48 Service Manual GWH07QC-D3DNB2D/I 6361000013301 GWC18QD-D3DNB2C/I GWC18QD-D3DNC2A/I GWC18QD-D3DND4A/I GWC18QD-D3DND8A/I 6361000044201 Technical Information...
  • Page 49 Service Manual ● Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O 600007000921 GWH18QD-D3DNC6L/O 600007000230 Technical Information...
  • Page 50 Service Manual GWH24QE-D3DNC6O/O 60000700078601 GWC12AFC-D3DNA1A/O GWC09AFC-D3DNA1A/O 600007061655 Technical Information...
  • Page 51 Service Manual GWH12AFC-D3DNA1A/O GWH09AFC-D3DNA1A/O 60000706165501 GWC24AFE-D3DNA1A/O GWC18AFD-D3DNA1A/O 60000706184801 Technical Information...
  • Page 52 Service Manual GWH24AFE-D3DNA1A/O 600007061848 GWC12QC-D3DNB2M/O 60000706165502 Technical Information...
  • Page 53 Service Manual GWH12QC-D3DNB2M/O 60000706165503 GWH07QC-D3DNA1D/O 63610000137 Technical Information...
  • Page 54 Service Manual GWC24QE-D3DNB2R/O 60000706255401 GWH24QE-D3DNB2R/O 600007062554 Technical Information...
  • Page 55 Service Manual GWC09QB-D3DNB2J/O 60000706282501 GWH09QB-D3DNB2J/O 600007062825 The above data is subject to change without notice. Please refer to the nameplate of the unit. Technical Information...

  • Page 56: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit GWH09QB-D3DNC6L GWH12QC-D3DNC6L GWH18QD-D3DNC6L GWH24QE-D3DNC6O Top view Name Interface of communication wire for indoor unit and outdoor unit 2 Interface of live wire 3 Interface of neutral wire 4 Interface of fan 5 Jumper cap Interface of health function live wire (only for the mode with this function) 7 Up&down swing interface...
  • Page 57 Service Manual GWH07QC-D3DNB2D/I GWC18QD-D3DNB2C/I GWC18QD-D3DNC2A/I GWC18QD-D3DND4A/I GWC18QD-D3DND8A/I Top view Name Neutral wire Needle stand for indoor fan Auto button Up&down swing motor Grounding wire Interface of temperature sensor Terminal for display board connection Terminal of jumper cap Communication wire Terminal of wired controlle 11 Fuse 12 Live wire interface 13 Detecting plate(WIFI )
  • Page 58 Service Manual GWC09QC-D3DND8C/I GWH09QC-D3DND8A/I GWC12QC-D3DND8C/I GWH12QC-D3DND8A/I GWC24QE-D3DND8C/I GWH24QE-D3DND8A/I GWC09QC-D3DNB2C/I GWC09QC-D3DNC2C/I GWC09QC-D3DND4C/I GWC12QC-D3DNB2C/I GWC12QC-D3DNC2C/I GWC12QC-D3DND4C/I GWC24QE-D3DNB2C/I GWC24QE-D3DNC2C/I GWC24QE-D3DND4C/I Top view Name Interface of live wire Fuse Interface of neutral wire Interface of fan Auto button Up&down swing interface Interface of PG feedback Interface of gate-control Interface of wifi Needle stand for tube temperature...
  • Page 59 Service Manual GWC12QC-D3DNB2M/I GWH12QC-D3DNB2M/I GWC24QE-D3DNB2R/I GWH24QE-D3DNB2R/I GWC09QB-D3DNB2J/I GWH09QB-D3DNB2J/I Top view Name Interface of health function neutral wire Neutral wire terminal Motor terminal Live wire terminal Auto button Up&down swing terminal Interface of Motor feedback Left&right swing terminal Terminal of temperature sensor WIFI terminal 11 Wired controller terminal 12 Interface of display board...
  • Page 60 Service Manual Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O ● Top view Compressor UVW three phase input interface Interface of reactor Interface of fan 4-way valve Interface of earthing wire Interface of live wire Interface of netural wire Interface of communication Interface of electronic expansion valve Overload interface of compressor Interface of temperature sensor ●...
  • Page 61 Service Manual GWH07QC-D3DNA1D/O ● Top view 14 15 ● Bottom view Technical Information...
  • Page 62 Service Manual GWC12AFC-D3DNA1A/O GWC09AFC-D3DNA1A/O GWC12QC-D3DNB2M/O GWH12QC-D3DNB2M/O GWH12AFC-D3DNA1A/O GWH09AFC-D3DNA1A/O Top view Name 1 Interface of compressor wire 2 Reactor wiring terminal 2 3 Reactor wiring terminal 1 4 Terminal of chassis electric heater 4-way valve terminal Grounding wire 7 Neutral wire 8 Communication wire 9 Live wire 10 Terminal of electronic expansion valve...
  • Page 63 Service Manual GWC24AFE-D3DNA1A/O GWH24AFE-D3DNA1A/O GWC18AFD-D3DNA1A/O GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O Top view Name Compressor three phase input interface Interface of system high pressure protection Compressor overload protection interface 4 Interface of temperature sensor Interface of electronic expansion valve Interface of system low pressure protection 7 Interface of fan 8 4-way valve interface...
  • Page 64 Service Manual GWC24QE-D3DNB2R/O GWH24QE-D3DNB2R/O Top view Name Compressor three phase input interface Compressor overload protection interface Interface of temperature sensor Interface of electronic expansion valve 5 Interface of fan 6 4-way valve interface Interface of electric heating for compressor 8 Interface of live wire 9 Interface of netural wire 10 Interface of earthing wire 11 Interface of netural wire...
  • Page 65 Service Manual GWC09QB-D3DNB2J/O GWH09QB-D3DNB2J/O Top view Name 1 Compressor three phase input interface 2 Interface of fan 3 Interface of electric heating for chassis 4 4-way valve interface Interface of earthing wire Interface of live wire 7 Neutral wire Communication interface Needle stand of electronic expansion valve Compressor overload protection...

  • Page 66: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction of YAN1F6F(WiFi) ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button WIFI button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel...
  • Page 67 Service Manual 1. ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. 2. MODE button Press this button to select your required operation mode. AUTO COOL HEAT When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can’t be adjusted and will not be displayed as well.
  • Page 68 Service Manual 6. ▲/ button Press "▲" or " " button once increase or decrease set temperature 1 (1°F) . Holding "▲" or " " button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indica- tor on indoor unit will change accordingly.
  • Page 69 Service Manual Note: Under on and off status, you can set TIMER OFF or TIMER ON simultaneously. Before setting TIMER ON or TIMER OFF, please adjust the clock time. After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time.
  • Page 70 Service Manual Replacement of batteries in remote controller signal sender battery 1. Press the back side of remote controller marked with " 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 reinstall are correct.

  • Page 71: Remote Controller Introduction Of Yv1Fb9F(Wifi)

    Service Manual 6.2 Remote Controller Introduction of YV1FB9F(WiFi) ON/OFF button ▲ button MODE button SWING button button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button WiFi button button Introduction for icons on display screen Set fan speed I feel Send signal...
  • Page 72 Service Manual HEAT AUTO COOL This button is used for setting Fan Speed in the sequence that goes from AUTO, , to , then back to Auto. Auto Note: Low speed Medium speed High speed Under AUTO speed, air conditioner will select proper fan speed automatically according to ex-factory setting. It’s Low fan speed under Dry mode.
  • Page 73 Service Manual WiFi button WiFi Press " " button to turn on or turn off WiFi function. When WiFi function is turned on, the " WiFi " icon will be displayed WiFi on remote controller; Under status of unit off, press "MODE" and " "...
  • Page 74 Service Manual I FEEL Function Press "▲" and "MODE" buttons simultaneously to start I FEEL function and " " will be displayed on the remote controller. After this function is set, the remote controller will send the detected ambient temperature to the controller and the unit will automatically adjust the indoor tempe rature according to the detected temperature.

  • Page 75: Remote Controller Introduction Of Yan1F10F(Wifi)

    Service Manual 6.3 Remote Controller Introduction of YAN1F10F(WiFi) ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button WiFi button LIGHT button CLOCK button TIMER ON / TIMER OFF button Set fan speed I feel Send signal Operation mode Turbo mode...
  • Page 76 Service Manual ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. MODE button Press this button to select your required operation mode. AUTO COOL HEAT When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Under auto mode, temperature can be displayed.
  • Page 77 Service Manual 6. ▲/ button Press "▲" or " " button once increase or decrease set temperature 1℃(1°F). Holding "▲" or " " button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change accordingly. When setting TIMER ON, TIMER OFF or CLOCK, press "▲"...
  • Page 78 Service Manual Note: Under on and off status, you can set TIMER OFF or TIMER ON simultaneously. Before setting TIMER ON or TIMER OFF, please adjust the clock time. After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time.
  • Page 79 Service Manual Operation guide After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT. Press "▲" or " " button to set your required temperature. (Temperature cant be adjusted under auto mode). Press "FAN"...

  • Page 80: Gree+ App Operation Manual

    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.

  • Page 81: Ewpe Smart App Operation Manual

    Service Manual 6.5 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...

  • Page 82: Brief Description Of Modes And Functions

    Service Manual 6.6 Brief Description of Modes and Functions All model except:GWC18QD-D3DNB2C GWC18QD-D3DNC2A GWC18QD-D3DND4A GWC18QD-D3DND8A Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
  • Page 83 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.
  • Page 84 Service Manual generated by the plastic parts due to thermal expansion and contraction is normal. During the cleaning and disinfection process, the room temperature may increase slightly, please keep the room well ventilated. Tips: The automatic cleaning function can only be started under normal environmental conditions. If the indoor environment is easy to dust, it is recommended to clean it once a month.
  • Page 85 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 86 Service Manual 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 87 Service Manual 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 88 Service Manual 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 89 Service Manual (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 90 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 91 Service Manual 6. Electric Heating Function of Chassis (1) When Toutdoor amb.≤32ºF , the electric heating of chassis will operate; (2) When Toutdoor amb.>35.6ºF , the electric heating of chassis will stop operation; (3)When 32ºF <Toutdoor amb.≤35.6ºF, the electric heating of chassis will keep original status. 7.
  • Page 92 Service Manual GWC18QD-D3DNB2C GWC18QD-D3DNC2A GWC18QD-D3DND4A GWC18QD-D3DND8A 1. Temperature Parameters ◆ Indoor preset temperature (T preset ◆ Indoor ambient temperature (T amb. 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is avail- able, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag;...
  • Page 93 Service Manual ◆ When compressor is running (not including each malfunction and protection): a.When outdoor ambient temperature≥20°C(68°F) and indoor fan speed is low or medium, the fan speed will turn to high; if indoor fan speed is high or super high, it will keep the same. b.When outdoor ambient temperature≤18°C(64.4°F), the fan speed will resume set fan speed.
  • Page 94 Service Manual c.For heating and cooling unit, when 22°C(71.6°F)<Tindoor ambient<26°C(78.8°F) (for cooling only unit, 22°C(71.6°F)<Tindoor ambient<26°C)(78.8°F), it will keep the original running mode. If the unit is energized for the first time, it will run in fan mode. ② Protection a.
  • Page 95 Service Manual 1. In cooling mode: 1.1 When the initial set temperature is16-23°C(60.8~73.4°F),the temperature will rise 1°C(1.8°F) by every hour after sleep function is set;the temperature will not change after rising 3°C(5.4°F) ;after running for 7hours,the temperature will decrease1°C(1.8°F) and it will not change after that.
  • Page 96 Service Manual 1. Under heating mode: auto speed under heating or auto heating mode: a. When T ≤T +1°C(1.8°F), indoor fan will operate at high speed; amb. preset b. When T +1°C(1.8°F)<T <T +3°C(5.4°F), indoor fan will operate at medium speed; preset amb.
  • Page 97 Service Manual (14)Auto cleaning function(only available on some models) The automatic cleaning function of the indoor heat exchanger can be dedusted and sterilized by the condensation, frosting, defrosting and high temperature stages of the evaporator. 1.Under the power off, press and hold the “Internal Clean” button for 3 seconds while holding down the “MODE” and “FAN” buttons for 5 seconds to turn on the Auto Clean function.

  • Page 98: Part Ⅱ : Installation And Maintenance

    Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 99 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.
  • Page 100 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.

  • Page 101: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 5 7/8 inch At least 5 7/8 inch Drainage pipe Installation and Maintenance...
  • Page 102 Service Manual Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 103: Installation Parts-Checking

    Service Manual 8.4 Requirements for Electric Connection 8.2 Installation Parts-checking 1. Safety Precaution (1) Must follow the electric safety regulations when installing Name Name the unit. Indoor unit Sealing gum (2) According to the local safety regulations, use qualified Outdoor unit Wrapping tape power supply circuit and air switch.
  • Page 104 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
  • Page 105 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.

  • Page 106: Installation Of Outdoor Unit

    Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: Hex nut diameter(inch) Tightening torque(ft·Ibf) 1. Fix the Support of Outdoor Unit(Select it according to Φ1/4 11.10~14.75 the actual installation situation) Φ3/8 22.12~29.50 (1) Select installation location according to the house structure.

  • Page 107: Vacuum Pumping And Leak Detection

    Service Manual Note: 8.8 Check after Installation and Test (1) The through-wall height of drain hose shouldnt be higher Operation than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) Slant the drain hose slightly downwards. The drain hose 1.

  • Page 108: Maintenance

    Service Manual 9. Maintenance 9.1 Error Code List Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying Possible reasons: High operation, except indoor...
  • Page 109 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Refrigerant Refrigerant recovery. recovery The Serviceman operates it Nominal cooling mode mode for maintenance.
  • Page 110 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Decrease Overload or temperature is too All loads operate normally, frequency high;...
  • Page 111 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying...
  • Page 112 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate;...
  • Page 113 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate;...
  • Page 114 Service Manual 1. Outdoor ambient temperature exceeds the operation range of unit (eg: less Cool: compressor and than-20oC or more than 60oC outdoor fan stops operation, for cooling; more than 30oC for Undefined while indoor fan operates; heating); outdoor unit Heat: compressor, outdoor 2.

  • Page 115: Troubleshooting For Main Malfunction

    Service Manual 9.2 Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 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? ●...
  • Page 116 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 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? ●...
  • Page 117 Service Manual Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly. Turn unit on to check whether the malfunction is eliminated.
  • Page 118 Service Manual 3. Malfunction of Protection of Jumper Cap C5 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? ●...
  • Page 119 Service Manual 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 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...
  • Page 120 Service Manual 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 121 Service Manual 6. Malfunction of Insufficient fluorine protection F0 （4） Troubleshooting for F0 malfunction Heat exchangers are Clean the heat exchangers and remove Malfunction is too dirty or the air inlet/outlet eliminated. blockage of air inlet/outlet. is blocked. Compressor doesn't work Malfunction is Make compressor run normally.
  • Page 122 Service Manual 7. Communication malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
  • Page 123 Service Manual 8. Malfunction of Overcurrent Protection E5 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 Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 124 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...
  • Page 125 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...
  • Page 126 Service Manual (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...
  • Page 127 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: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 128 Service Manual (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 in Out of step occurs once the operation unit is powered on.
  • Page 129 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: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
  • Page 130 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...
  • Page 131 Service Manual (8) Overload and high discharge temperature malfunction Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
  • Page 132 Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be＜1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...

  • Page 133: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner 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 134 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner 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...

  • Page 135: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit QB、QC The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 136 Service Manual Part Code Description GWH09QB-D3DNC6L/I GWH12QC-D3DNC6L/I GWH07QC-D3DNB2D/I Product Code CB443N04600 CB443N04700 CB432N20800 Front Panel 20000300101T 20000300102T 20000300018 Filter Sub-Assy 11122219 11122468 1112246803 Display Board 30565260 30565260 30565260 Front Case Assy 00000200040 00000200045 00000200045 Guide Louver 1051276301 1051293101 1051293101 Helicoid Tongue 26112508 26112436 26112436...
  • Page 137 Service Manual Part Code Description GWC09QC-D3DND8C/I GWH09QC-D3DND8A/I Product Code CB459N06600 CB459N06900 Front Panel 200003000003S 200003000003S Filter Sub-Assy 1112246803 1112246803 Display Board 300001000035 300001000035 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 138 Service Manual Part Code Description GWC12QC-D3DND8C/I GWH12QC-D3DND8A/I Product Code CB459N06700 CB459N07000 Front Panel 200003000003S 200003000003S Filter Sub-Assy 1112246803 1112246803 Display Board 300001000035 300001000035 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 139 Service Manual Part Code Description GWC09QC-D3DNB2C/I GWC09QC-D3DNC2C/I Product Code CB432N23400 CB439N15300 Front Panel 20000300018 20000300069S Filter Sub-Assy 1112246803 1112246803 Display Board 30565260 30565281 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 140 Service Manual Part Code Description GWC09QC-D3DND4C/I GWC12QC-D3DNB2C/I Product Code CB464N03200 CB432N23200 Front Panel 200003000069T 20000300018S Filter Sub-Assy 1112246803 1112246803 Display Board 300001000081 30565260 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 141 Service Manual Part Code Description GWC12QC-D3DNB2M/I GWH12QC-D3DNB2M/I Product Code CB432N22700 CB432N22600 Front Panel 20000300018S 20000300018S Filter Sub-Assy 1112246803 1112246803 Display Board 30565260 30565260 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 142 Service Manual Part Code Description GWC12QC-D3DNC2C/I GWC12QC-D3DND4C/I Product Code CB439N15400 CB464N03100 Front Panel 20000300069S 200003000069T Filter Sub-Assy 1112246803 1112246803 Display Board 30565281 300001000081 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
  • Page 143 Service Manual Part Code Description GWC09QB-D3DNB2J/I GWH09QB-D3DNB2J/I Product Code CB432N21900 CB432N21800 Front Panel 20000300019S 20000300019S Filter Sub-Assy 1112221905 1112221905 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 00000100066...
  • Page 144 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 145 Service Manual Part Code Description GWH18QD-D3DNC6L/I Product Code CB443N04800 Front Panel 20000300103T Filter Sub-Assy 1112208906 Decoration board(left and right) 20192662 Front Case 2002248401 Guide Louver 1051276501 Axile Bush 10542036 Air Louver(Manual) 10512732 Helicoid Tongue 26112512 Left Axile Bush 10512037 Display Board 30565260 Rear Case assy 22202571...
  • Page 146 Service Manual Part Code Description GWC18QD-D3DNB2C/I GWC18QD-D3DNC2A/I Product Code CB432N23300 CB439N15500 Front Panel 20000300023S 20000300070S Filter Sub-Assy 1112208906 1112208906 Decoration board(left and right) 20192662 20192662 Front Case 2002248401 2002248401 Guide Louver 1051276501 1051276501 Axile Bush 10542036 10542036 Air Louver(Manual) 10512732 10512732 Helicoid Tongue 26112512...
  • Page 147 Service Manual Part Code Description GWC18QD-D3DND4A/I GWC18QD-D3DND8A/I Product Code CB464N03300 CB459N07200 Front Panel 200003000068T 200003000015S Filter Sub-Assy 1112208906 1112208906 Decoration board(left and right) 20192662 20192662 Front Case 2002248401 2002248401 Guide Louver 1051276501 1051276501 Axile Bush 10542036 10542036 Air Louver(Manual) 10512732 10512732 Helicoid Tongue 26112512...
  • Page 148 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 149 Service Manual Part Code Description GWH24QE-D3DNC6O/I GWC24QE-D3DNB2C/I Product Code CB443N05000 CB432N23500 Front Panel 20000300104T 20000300016S Filter Sub-Assy 11012007 1101200703 Screw Cover 2425245301 2425245301 Front Case 2002248603 2002248603 Air Louver(Manual) 10512737 10512737 Helicoid Tongue 26112513 26112513 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260...
  • Page 150 Service Manual Part Code Description GWC24QE-D3DND8C/I GWH24QE-D3DND8A/I Product Code CB459N06800 CB459N07100 Front Panel 200003000014 200003000014 Filter Sub-Assy 1101200703 1101200703 Screw Cover 2425245301 2425245301 Front Case 2002248603 2002248603 Air Louver(Manual) 10512737 10512737 Helicoid Tongue 26112513 26112513 Left Axile Bush 10512037 10512037 Display Board 300001000036 300001000036...
  • Page 151 Service Manual Part Code Description GWC24QE-D3DNC2C/I GWC24QE-D3DND4C/I Product Code CB439N15100 CB464N03000 Front Panel 20000300071S 200003000076T Filter Sub-Assy 1101200703 1101200703 Screw Cover 2425245301 2425245301 Front Case 2002248603 2002248603 Air Louver(Manual) 10512737 10512737 Helicoid Tongue 26112513 26112513 Left Axile Bush 10512037 10512037 Display Board 30565278 300001000081...
  • Page 152 Service Manual Part Code Description GWC24QE-D3DNB2R/I GWH24QE-D3DNB2R/I Product Code CB432N21600 CB432N21500 Front Panel 20000300016S 20000300016S Filter Sub-Assy 11012007 11012007 Screw Cover 2425245301 2425245301 Front Case 2002248603 2002248603 Air Louver(Manual) 10512737 10512737 Helicoid Tongue 26112513 26112513 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260...

  • Page 153: Outdoor Unit

    Service Manual 10.2 Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O GWH09AFC-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 154 Service Manual Part Code Description GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O Product Code CB443W04600 CB443W04700 Front Grill 01473012 01473012 Front Panel Assy 0153304804 0153304804 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 017000000133P 017000000126P Clapboard Sub-Assy 0123338502 0123338502 Drainage Connecter 06123401 06123401 Compressor Gasket 76710287 76710287 4-Way Valve Assy 030152000171...
  • Page 155 Service Manual Part Code Description GWH09AFC-D3DNA1A/O Product Code CB348W03400 Front Grill 01473012 Front Panel Assy 0153304804 Axial Flow Fan 10333004 Chassis Sub-assy 017000060337P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor Gasket 009012000027 4-Way Valve Assy 030152060316 Valve Support 0171314201P Cut off Valve Assy 07133474 Valve 07100003...
  • Page 156 Service Manual GWH09QB-D3DNB2J/O GWH12QC-D3DNB2M/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 157 Service Manual Part Code Description GWH09QB-D3DNB2J/O GWH12QC-D3DNB2M/O Product Code CB432W21800 CB432W22600 Front Grill 01473012 01473012 Front Panel Assy 0153304804 0153304804 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 01700006009601P 01700006009601P Clapboard Sub-Assy 0123338502 0123338502 Drainage Connecter 06123401 06123401 Compressor Gasket 009012000027 009012000027 4-Way Valve Assy 030152060087...
  • Page 158 Service Manual GWC09AFC-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 159 Service Manual Part Code Description GWC09AFC-D3DNA1A/O Product Code CB348W03300 Front Grill 01473012 Front Panel Assy 0153304804 Axial Flow Fan 10333004 Fan Motor 1501308511 Chassis Sub-assy 017000060086P Compressor Gasket 009012000027 Compressor and fittings 009001060050 Valve Support 0171314201P Cut off Valve Assy 07133474 Valve Support Block 26113017...
  • Page 160 Service Manual GWC12QC-D3DNB2M/O GWC09QB-D3DNB2J/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 161 Service Manual Part Code Description GWC12QC-D3DNB2M/O GWC09QB-D3DNB2J/O Product Code CB432W22700 CB432W21900 Front Grill 01473012 01473012 Front Panel Assy 0153304804 0153304804 Axial Flow Fan 10333004 10333004 Fan Motor 1501308511 1501308511 Chassis Sub-assy 01700006039402P 01700006009301P Compressor Gasket 009012000027 009012000027 Compressor and Fittings 009001060066 009001060050 Valve Support...
  • Page 162 Service Manual GWC12AFC-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 163 Service Manual Part Code Description GWC12AFC-D3DNA1A/O Product Code CB348W03500 Front Grill 016004060007 Cabinet 01433033P Axial Flow Fan 10333011 Fan Motor 1501308511 Chassis Sub-assy 017000060083P Compressor Gasket 009012000027 Electrical Heater(Compressor) Compressor and fittings 009001060066 Electric Expansion Valve Sub-Assy 030026060313 Valve cover 22243006 Valve 071302391...
  • Page 164 Service Manual GWH12AFC-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 165 Service Manual Part Code Description GWH12AFC-D3DNA1A/O Product Code CB348W03600 Front Grill 016004060007 Cabinet 01433033P Axial Flow Fan 10333011 Fan Motor 1501308511 Electrical Heater 7651000414 Chassis Sub-assy 017000060080P Drainage Connecter 26113009 Electrical Heater(Compressor) 7651000414 Compressor and Fittings 009001060066 Compressor Gasket 009012000027 Magnet Coil 4300040050 Valve Support...
  • Page 166 Service Manual GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O GWH24AFE-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 167 Service Manual Part Code Description GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O Product Code CB443W04800 CB443W05000 Front Grill 01473049 01473049 Cabinet 01433047P 01433047P Axial Flow Fan 10335008 10335008 Fan Motor 1501506402 1501506402 Chassis Sub-assy 01700000093P 01700000161P Drainage hole Cap 06813401 06813401 Clapboard Assy 01233153 01235081 4-Way Valve Assy 030152000291 030152000073...
  • Page 168 Service Manual Part Code Description GWH24AFE-D3DNA1A/O Product Code CB348W03100 Front Grill 016004000006 Cabinet 01433047P Axial Flow Fan 10335008 Fan Motor 1501506402 Chassis Sub-assy 017000060297P Drainage hole Cap 06813401 Clapboard Assy 01233153 4-Way Valve Assy 030152060325 Compressor and Fittings 00900100019501 Valve Support Assy 01705046P Cut off Valve 07130239...
  • Page 169 Service Manual GWC24AFE-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 170 Service Manual Part Code Description GWC24AFE-D3DNA1A/O Product Code CB348W03200 Front Grill 016004000006 Cabinet 01433047P Axial Flow Fan 10335008 Fan Motor 1501506402 Chassis Sub-assy 01700000181P Clapboard Assy 01233153 Compressor and Fittings 00900100019501 Inhalation Tube Sub-assy 030010060041 Discharge Tube Sub-assy 030013060621 Valve Support 01705047 Cut off Valve 07133844...
  • Page 171 Service Manual GWH07QC-D3DNA1D/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 172 Service Manual Part Code Description GWH07QC-D3DNA1D/O Product Code CB432W20800 Front Grill 01473012 Cabinet 0143305801P Axial Flow Fan 10333004 Fan Motor 1501308507 Electrical Heater 76510004 Chassis Sub-assy 01700000053P Drainage Connecter 06123401 Electrical Heater(Compressor) 76513004 Compressor and Fittings 00103892 Compressor Gasket 76713027...
  • Page 173 Service Manual GWC18AFD-D3DNA1A/O 6 7 8 9 10 11 12 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 174 Service Manual Part Code Description GWC18AFD-D3DNA1A/O Product Code CB348W04700 Front Grill 016004060004 Front Panel 000003060115 Axial Flow Fan 10333014 Chassis Sub-assy 209058060167P Clapboard Assy 01233168 Compressor and Fittings 009001060066 Inhalation Tube Sub-assy 030010060613 Discharge Tube Sub-assy 035008061392 Valve Support Assy 01713115P Cut off Valve Assy 1/2 07133774...
  • Page 175 Service Manual GWH24QE-D3DNB2R/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 176 Service Manual Part Code Description GWH24QE-D3DNB2R/O Product Code CB432W21500 Axial Flow Fan 10333023 Fan Motor 1501506406 Electric Box Assy 100002067147 Electric Box 20113027 Radiator 49013060 Main Board 300027060877 Electric Box Cover 20123028 Terminal Board 42200006001401 Handle 26233014 Left Side Plate 01303025 Coping 01253105...
  • Page 177 Service Manual GWC24QE-D3DNB2R/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 178 Service Manual Part Code Description GWC24QE-D3DNB2R/O Product Code CB432W21600 Axial Flow Fan 10333023 Fan Motor 1501506406 Electric Box Assy 100002067145 Electric Box 20113027 Radiator 49013060 Main Board 300027060878 Electric Box Cover 20123028 Terminal Board 42200006001401 Handle 26233014 Left Side Plate 01303025 Coping 01253105...

  • Page 179: Removal Procedure

    Service Manual 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit 07/09/12K Step Procedure 1. Remove filter assembly Front panel Open the front panel.
  • Page 180 Service Manual Step Procedure 4. Remove detecting plate and electric box cover 2 Screw Electric box cover2 Remove the screw fixing detecting plate and then remove the detecting plate. Detecting plate Note:The position of detection board(WIFI) Screw may be different for -different models. for 09K Detecting plate Remove the screw fixing electric box...
  • Page 181 Service Manual Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
  • Page 182 Service Manual Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. circlip The pulling method is as below: holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 183 Service Manual Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...
  • Page 184 Service Manual 18/24K 1. Remove filter as s y Front panel Open the front panel. Push the left and right filters to make them break away from the groove on the front case. Then remove the left Front and right filters one by one. case Left filter Groove...
  • Page 185 Service Manual Electric box cover 2 4. Remove electric box cover 2 and detecting plate(WIFI) Screw Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Screws detecting plate(WIFI). Detecting plate (WIFI) Loosen the connection clasps between front case sub-assy and bottom case.
  • Page 186 Service Manual Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s c rew...
  • Page 187 Service Manual G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy. Installation and Maintenance...
  • Page 188 Service Manual Installation and Maintenance...

  • Page 189: Removal Procedure Of Outdoor Unit

    Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. 09K、GWH12QC-D3DNC6L/O GWC12QC-D3DNB2M/O GWH12QC-D3DNB2M/O GWC09QB-D3DNB2J/O GWH09QB-D3DNB2J/O Take heat pump for example. Steps Procedure 1.Remove cable cross plate 2 and valve cover...
  • Page 190 Service Manual 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Grille Panel 4.Remove axial flow blade...
  • Page 191 Service Manual 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of elec- tric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to re- move the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy...
  • Page 192 Service Manual 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
  • Page 193 Service Manual 11.Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve. (Note: it is necessary to warp the gas valve when unsoldering the welding spot.) Remove the 2 Liquid valve screws fixing liquid valve.
  • Page 194 Service Manual GWC12AFC-D3DNA1A/O GWH12AFC-D3DNA1A/O Take heat pump for example. Steps Procedure Cable Cross Plate 2 1.Remove cable cross plate 2 and valve cover Remove 3 connection screw fixing small cable cross plate 2 and then remove the cable cross plate 2. screw Remove 1 connection screw fixing valve cover and then remove the valve cover.
  • Page 195 Service Manual Steps Procedure 4.Remove front panel front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. 5.Remove right side plate Remove connection screws connecting the right side plate right side plate with the valve support and the electric box.
  • Page 196 Service Manual Steps Procedure 7.Remove motor and motor support motor support tor Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws re-move it. motor 8.Remove electric box assy electric box assy Remove the 2 screws fixing the cover of elec-tric box.
  • Page 197 Service Manual Steps Procedure 10.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil and remove the coil. Wrap the 4-way Valve Assy with wet cotton and unsolderthe 4 weld spots connecting the 4-way Valve Assy to take it out(Note: Refrig- erant shouldbe discharged firstly.) Welding processshould be as quickly as possible and...
  • Page 198 Service Manual GWH18QD-D3DNC6L/O GWH24QE-D3DNC6O/O GWC24AFE-D3DNA1A/O GWH24AFE-D3DNA1A/O Steps Procedure 1. Remove big handle,valve cover and top cover big handle Remove the screw connecting the big handle and right side plate, and then remove the big handle. Remove the screw connecting the valve cover and right side plate, and then remove the valve cover.
  • Page 199 Service Manual Steps Procedure Remove the screws connecting the outer case with motor support, isolation plate and chassis; lift the outer case upwards; loosen the clasps of outer case with right side plate and left side plate, and then remove the outer case. outer case 3.
  • Page 200 Service Manual Steps Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow fan motor support Remove the 6 screws fixing the motor and then remove the motor. Remove the 2 screws connecting the motor support and chassis, and then loosen the stopper to remove the motor support.
  • Page 201 Service Manual Steps Procedure 6. Remove the soundproof sponge Tear off the sticking stripe and then remove the soundproof sponge. soundproof sponge 7. Remove isolation plate Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
  • Page 202 Service Manual Steps Procedure 9. Remove compressor compressor Remove the 3 foot nuts fixing compressor and then lift the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. condenser sub-assy 10.
  • Page 203 Service Manual GWH07QC-D3DNA1D/O Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy Remove the screws fixing cable cross plate sub-assy and then remove the cable cross plate sub-assy. Remove the screws fixing valve cover and then remove the valve cover.
  • Page 204 Service Manual Steps Procedure 4.Remove front panel front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. 5.Remove right side plate Remove connection screws connecting the right side plate right side plate with the valve support and the electric box.
  • Page 205 Service Manual Steps Procedure 7.Remove motor and motor support motor support tor Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws re-move it. motor 8.Remove electric box assy electric box assy Remove the 2 screws fixing the cover of elec-tric box.
  • Page 206 Service Manual Steps Procedure 10.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil and remove the coil. Wrap the 4-way Valve Assy with wet cotton and unsolderthe 4 weld spots connecting the 4-way Valve Assy to take it out(Note: Refrig- erant shouldbe discharged firstly.) Welding processshould be as quickly as possible and...
  • Page 207 Service Manual GWC18AFD-D3DNA1A/O NOTE: This models haven’t 4-way valve assy. Before disassamble. 1.Remove cable cross plate 2 and valve cover and top panel Before disassamble. Remove 3 connection screw fixing cable cross plate 2 and then remove the Cable cross plate 2. Cable cross plate 2 Remove 1 connection screw fixing valve cover and then remove the valve cover.
  • Page 208 Service Manual Step Procedure remove the cabinet. Cabinet Screw Remove right side plate and rear grill Right side plate and then remove the right side plate. Screw Screw Remove the screws and then remove the grille. Screw Rear grill Screw Installation and Maintenance...
  • Page 209 Service Manual Step Procedure Remove lef side plate and then remove the letf side plate. Left side plate Screw 6.Remove electric box assy Screw Electric box assy 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 dont pull...
  • Page 210 Service Manual Step Procedure 7.Remove motor remove the motor. Screw Motor 8.Remove motor support Motor support and then remove the motor support. Screw 9.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 .
  • Page 211 Service Manual Procedure Step 10.Remove compressor Remove 3 foot nuts on compressor, and then remove the compressor. Foot nuts Note: Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it. Compressor 11.Remove clapboard Screw then remove the clapboard.
  • Page 212 Service Manual GWC24QE-D3DNB2R/O GWH24QE-D3DNB2R/O Note: Take heat pump for example. Installation and Maintenance...
  • Page 213 Service Manual Installation and Maintenance...
  • Page 214 Service Manual Installation and Maintenance...
  • Page 215 Service Manual Installation and Maintenance...
  • Page 216 Service Manual Installation and Maintenance...
  • Page 217 Service Manual Installation and Maintenance...

  • Page 218: 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 （℉）...

  • Page 219: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 220: Appendix 4: List Of Resistance For Temperature Sensor

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039 121.6...
  • Page 221 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4...
  • Page 222 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36...
  • Page 223 Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn 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 For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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