Gree GWH18AAD-K6DNA5A Service Manual
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Gree GWH18AAD-K6DNA5A Service Manual

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Change for life
Service Manual
Models: GWH18AAD-K6DNA5A
GWH18AAD-K6DNA4A
GWH18AAD-K6DNA1B
GWH18AAD-K6DNA1A
GWH18AAD-K6DNA5B
GWH18AAD-K6DNA4B
GWH24AAD-K6DNA1A
GWH24AAD-K6DNA5A
GWH24AAE-K6DNA4C
(Refrigerant R32)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GWH18AAD-K6DNA5A

  • Page 1 Change for life Service Manual Models: GWH18AAD-K6DNA5A GWH18AAD-K6DNA4A GWH18AAD-K6DNA1B GWH18AAD-K6DNA1A GWH18AAD-K6DNA5B GWH18AAD-K6DNA4B GWH24AAD-K6DNA1A GWH24AAD-K6DNA5A GWH24AAE-K6DNA4C (Refrigerant R32) GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    Service Manual Table of Contents Part : Technical Information ...............1 ........................1 1. Summary . S eci cations ......................3 ......................3 ..................11 ............11 ........... 11 ........................12 ..............13 3. Outline Dimension Diagram 3.1 Indoor Unit ........................13 ........................14 4. Refrigerant System Diagram ..............16 ......................17 5.
  • Page 3 Service Manual 9. Maintenance ......................49 ..................49 ..................51 ..............69 ..............71 10. Exploded View and Parts List 10.1 Indoor Unit ........................71 .........................77 11. Removal Procedure ..................85 ................85 ................90 ........................110 Appendix: ..........110 ..............110 Appendix 3: Pipe Expanding M ................. 111 ............

  • Page 4: Part : Technical Information

    Service Manual Part : Technical Information 1. Summary Indoor Unit: GWH18AAD-K6DNA1B/I GWH18AAD-K6DNA1A/I GWH24AAD-K6DNA1A/I GWH24AAD-K6DNA5A/I GWH18AAD-K6DNA5A/I GWH18AAD-K6DNA5B/I GWH18AAD-K6DNA4A/I GWH18AAD-K6DNA4B/I GWH24AAE-K6DNA4C/I Outdoor Unit: GWH18AAD-K6DNA1B/O GWH18AAD-K6DNA1A/O Technical Information...
  • Page 5 Service Manual GWH24AAD-K6DNA1A/O GWH24QE-K6DNA1C/O Remote Controller: WiFi Technical Information...

  • Page 6: S Eci Cations

    Service Manual 2. Speci cations 2.1 Speci cation Sheet GWH18AAD-K6DNA1A GWH18AAD-K6DNA5A Model GWH18AAD-K6DNA4A CB476000200/CB476000201 CB488000700 CB479000600 Rated Voltage 220-240 Power Cooling Capacity 5130 Heating Capacity 5280 1600 1450 2300 10.8 Rated Heating 850/720/610/520/- 3.21 3.64 SEER Application Area 23-34 GWH18AAD-K6DNA1A/I...
  • Page 7 Service Manual GWH18AAD-K6DNA1A/O CB476W00200 68DA Rotary L.R.A. 1410 C/HPC 115/95 16~30 -15~43 -15~24 2-1.4 0.62 2400 Isolation dB (A) 56/-/- dB (A) 66/-/- Refrigerant Connection Pipe Technical Information...
  • Page 8 Service Manual GWH24AAD-K6DNA1A Model GWH24AAD-K6DNA5A CB476000100/CB476000101 CB488000500 Rated Voltage 220-240 Power Cooling Capacity 6155 Heating Capacity 6448 1760 1860 2600 10.9 Rated Heating 11.3 850/720/610/520/- 3.47 SEER Application Area 23-24 GWH24AAD-K6DNA1A/I Model of Indoor Unit GWH24AAD-K6DNA5A/I CB476N00100/CB476N00101 CB488N00500 1230/1130/1030/800/- 1350/1200/1050/900/- 0.35 Indoor Unit 2-1.4...
  • Page 9 Service Manual GWH24AAD-K6DNA1A/O CB476W00100 68DA Rotary L.R.A. 1410 C/HPC 115/95 16~30 -15~43 -15~24 2-1.4 0.49 3200 Isolation dB (A) 57/-/- dB (A) 67/-/- 50.5 Refrigerant Connection Pipe Technical Information...
  • Page 10 Service Manual GWH18AAD-K6DNA1B Model GWH18AAD-K6DNA5B GWH18AAD-K6DNA4B CB476000600 CB488000600 CB479001300 Rated Voltage 220-240 Power Cooling Capacity 4600 Heating Capacity 5200 1430 1400 1700 Rated Heating 850/720/610/520/- 3.22 3.71 SEER Application Area 21-31 GWH18AAD-K6DNA1B/I Model of Indoor Unit GWH18AAD-K6DNA5B/I GWH18AAD-K6DNA4B/I CB476N00600 CB488N00600 CB479N01300 1230/1130/1030/800/- 1350/1200/1050/900/-...
  • Page 11 Service Manual GWH18AAD-K6DNA1B/O CB476W00600 Rotary L.R.A. 4.21 Capillary 16~30 -15~43 -15~24 2-1.4 2200 Isolation dB (A) 54/-/- dB (A) 64/-/- Refrigerant 0.77 Connection Pipe Technical Information...
  • Page 12 Service Manual Unit Model GWH24AAE-K6DNA4C CB479000700 Rated Voltage 220-240 Power Cooling Capacity 6450 Heating Capacity 6450 1950 1735 3100 13.04 1250/1050/950/850/- 3.71 SEER 6.30 4.0/5.1/3.3 Application Area 23-34 Indoor Unit Model GWH24AAE-K6DNA4C/I CB479N00700 Cooling Speed(SH/H/M//L/SL) 1250/1000/900/800/- Heating Speed(SH/H/M//L/SL) 1250/1000/900/850/- 0.35 Indoor 2-1.4 Unit...
  • Page 13 Service Manual GWH24QE-K6DNA1C/O CB419W12200 Rotary 11.50 2400 16~30 -15~43 Range -15~24 Range 2-1.4 Unit 0.58 3200 Isolation dB (A) 58/-/- dB (A) 68/-/- 52.5 Refrigerant Connection Pipe Technical Information...
  • Page 14 Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.2 Capacity Curve in Different Outdoor Temperature...
  • Page 15 Service Manual 2.5 Noise Curve Outdoor side noise Indoor side noise High Super High Middle Indoor Fan Motor Rotating Speed Compressor frequency/Hz GWH18AAD-K6DNA1B GWH18AAD-K6DNA1A Technical Information...

  • Page 16: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Model 18/24K Technical Information...
  • Page 17 Service Manual 3.2 Outdoor Unit GWH18AAD-K6DNA1A/O Unit:mm Unit:mm Technical Information...
  • Page 18 Service Manual GWH18AAD-K6DNA1B/O GWH24QE-K6DNA1C/O Unit:mm Technical Information...

  • Page 19: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram GWH18AAD-K6DNA1A Cooling and heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Strainer expand valve COOLING...

  • Page 20: Electrical Part

    Service Manual 5. Electrical Part 5.1 Wiring Diagram Instruction Green Yellow Brown COMP YEGN Yellow/Green Violet Orange Indoor Unit GWH24AAD-K6DNA1A/I(CB476N00101 ) 60000700068802 Technical Information...
  • Page 21 Service Manual GWH24AAE-K6DNA4C/I 60000700068803 GWH18AAD-K6DNA1A/I(CB476N00201) GWH24AAD-K6DNA1A/I(CB476N00101 ) 60000700068811 Technical Information...
  • Page 22 Service Manual Outdoor Unit GWH18AAD-K6DNA1A/O GWH24AAD-K6DNA1A/O GWH24QE-K6DNA1C/O 63610000218 GWH18AAD-K6DNA1B/O 600007000884 Technical Information...
  • Page 23 Service Manual 5.2 PCB Printed Diagram Indoor Unit Top view wire 5 Interface of fan 9 Up&down swing interface 14 Display interface Bottom view Technical Information...
  • Page 24 Service Manual Outdoor Unit GWH18AAD-K6DNA1A/O Top view Name Compressor three phase input interface Terminal of system high pressure protection Compressor overload protection terminal Interface of temperature sensor Terminal of electronic expansion valve Terminal for low pressure protection Interface of fan 4-way valve terminal 2-way valve terminal Terminal of compressor electric heater...
  • Page 25 Service Manual GWH18AAD-K6DNA1B/O Top view Reactor 2 Reactor 1 DC fan DRED Bottom view Technical Information...

  • Page 26: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on remote controller On/Off button Mode button Fan button ▲/ button Swing button Sleep button Temp button Turbo button I Feel button Timer button WiFi button WiFi Light button Icon Display on Remote Controller Temp.
  • Page 27 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 Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL, DRY, FAN, and HEAT *, as the following: * Note: Only for models with heating function.
  • Page 28 Service Manual TURBO button Under COOL or HEAT mode, press this button to activate / deactivate the Turbo function. 9. I FEEL button Press this button 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 temperature according to the detected temperature.
  • Page 29 Service Manual WIFI Function Press this button to turn on the unit. Press this button again to turn off the unit. Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on, the " "...
  • Page 30 Service Manual 6.2 GREE+ App Operation Manual Control Flow Chart Internet Gree Cloud Gree Cellular/ Home Wi-Fi intelligent home Other Wi-FI appliances Home wireless router Home Wi-Fi GREE+ APP Operating Systems iOS system Android system Support iOS7.0 and Support Android 4.4 and...
  • Page 31 Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version Download and installation App Download Linkage...
  • Page 32 Service Manual 6.4 Brief Description of Modes and Functions 1.Basic function of system (1)Cooling mode (2)Drying mode (3)Heating mode (4)Working method for AUTO mode: (5)Fan mode 2. Other control (1) Buzzer (2) Auto button (3) Auto fan (4) Sleep (5) Timer function: (6) Memory function (7) Health function Technical Information...
  • Page 33 Service Manual (8)I feel control mode (9)Compulsory defrosting function (10)Refrigerant recovery function: (11)Ambient temperature display control mode displayed. (12)Off-peak energization function: (13) SE control mode (14) X-fan mode (15) 8ºC heating function (16) Turbo fan control function Technical Information...
  • Page 34 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. – – (2) Check effective judgment controls of parameters 2. Basic Functions (1) Cooling Mode 1. Conditions and processes of cooling operation: –...
  • Page 35 Service Manual 3. Special Functions Defrosting Control Conditions for starting defrosting 4. Control Logic (1) Compressor Control delay). 1. Cooling mode 2. Dehumidifying mode 3. Air-supplying mode 4. Heating mode (2) Defrosting: (2) Outer Fans Control Notes: (3) 4-way valve control (4) Evaporator frozen-preventing protection function Technical Information...
  • Page 36 Service Manual 1. Starting estimation: > inner pipe 2. Frequency limited inner pipe 3. Reducing frequency at normal speed: inner pipe 4. Reducing frequency at high speed: inner pipe 5. Power turn-off: inner pipe inner pipe (5) Overload protection function 1.
  • Page 37 Service Manual 1. Frequency limited inner pipe 2. Reducing frequency at normal speed and stopping machine: inner pipe inner pipe 3. Reducing frequency at high speed and power turn-off: inner pipe 4. Power turn-off: inner pipe 1. Starting estimation: 2. Frequency limited 3.
  • Page 38 Service Manual (6)Voltage sag protection (7)Communication fault (8)Module protection (9)Module overheating protection 1. Starting estimation: 2. Frequency limited 3. Reducing frequency at normal speed and power turn-off: 4. Reducing frequency at high speed and power turn-off: 5. Power turn-off: transferring also will not clear it). (10)Compressor overloads protection (11)Phase current overcurrent protection of compressor steps:...
  • Page 39 Service Manual (12) Starting-up Failure Protection for Compressor (13) Out-of-Step Protection for Compressor (14) Voltage Abnormity Protection for DC Bus 1.Over-High Voltage Protection for DC Bus: 2.Over-Low Voltage Protection for DC Bus: 3.To detect voltage abnormity protect for DC bus when getting electricity: (15)Abnormity Protection for Four-way Valve Inner Ring (16) PFC Protection...
  • Page 40 Service Manual Installation and Maintenance...

  • Page 41: Part : Installation And Maintenance

    Service Manual Part : 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 42 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 speci ed refrigerant.
  • Page 43 Service Manual Safety Operation of Flammable Refrigerant uali cation requirement for installation and maintenance man All the work men who are engaging in the refrigeration system should bear the valid certi cation awarded by the authoritative organization and the quali cation for dealing with the refrigeration system recognized by this industry. If it needs other technician to maintain and repair the appliance, they should be supervised by the person who bears the quali cation for using the ammable refrigerant.
  • Page 44 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 45: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
  • Page 46 Service Manual Installation procedures 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 47: Selection Of Installation Location

    Service Manual 8.2 Installation Parts-checking Wrapping tape Connection pipe conditioner. Drainage pipe Air-conditioner GWH18AAD-K6DNA1B/ GWH18AAD-K6DNA4B Connecting GWH18AAD-K6DNA1A/ Wall pipe exceptGWH24AAE-K6DNA4C) GWH24AAE-K6DNA4C Note: 8.3 Selection of Installation Location 1. Basic Requirement: 2. Indoor Unit: 2. Grounding Requirement: appliance. 3. Outdoor Unit: wind.
  • Page 48 Service Manual 5. Connect the Pipe of Indoor Unit 3. Install Wall-mounting Frame Open-end wrench Union nut Wall Wall Pipe Pipe joint Union nut Level meter Mark in the middle of it Pipe Torque wrench Space Space to the to the Indoor pipe wall wall...
  • Page 49 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe screw panel wiring cover Indoor and outdoor power cord Indoor unit pipe Cable-cross Liquid hole pipe Band Drain hose Power connection wire Drain hose Connection pipe Band Indoor power cord Note: N(1) winding.
  • Page 50 Service Manual 8.6 Installation of Outdoor unit 1. Fix the Support of Outdoor Unit(Select it according to 15~20 the actual installation situation) 30~40 45~55 60~65 expansion screws. 70~75 Note: 5. Connect Outdoor Electric Wire GWH18AAD-K6DNA1A/O N(1) yellow- blue black brown brown blue yellow- (black)

  • Page 51: Detection

    Service Manual 8.8 Check after Installation and Test operation 1. Check after Installation installation. The drain hose can't be fluctuant The water outlet can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant water dripping.

  • Page 52: Maintenance

    Service Manual 9. Maintenance 9.1 Malfunction Display of Indoor Unit 1. Malfunction display requirement 2. Malfunction display method 3. Display control via remote controller Display under test state Malfunction Name Dual-8 Nixie Tube Installation and Maintenance...
  • Page 53 Service Manual soldering iron,etc. Installation and Maintenance...
  • Page 54 Service Manual 9.2 Procedure of Troubleshooting Indoor unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: Start Installation and Maintenance...
  • Page 55 Service Manual (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: Start Installation and Maintenance...
  • Page 56 Service Manual (3) Malfunction of Protection of Jumper Cap C5 Main detection points: Start Installation and Maintenance...
  • Page 57 Service Manual (4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: Start U8 is still displayed Installation and Maintenance...
  • Page 58 Service Manual (5) Communication malfunction (E6) Troubleshooting for E6 malfunction Disconnect power and check if the connection wire of indoor and outdoor units and the built-in wire of electric box are correctly connected. Connect the wire properly according Is malfunction Correct connection? to the wiring eliminated?
  • Page 59 Service Manual (6). Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected Replace the detecting plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 60 Service Manual Outdoot Unit (1) Malfunction of Desynchronizing of Compressor (H7) Connect wire correctly Replace electronic Installation and Maintenance...
  • Page 61 Service Manual Replace fan capacitor connected well Installation and Maintenance...
  • Page 62 Service Manual (2) Malfunction of Temperature Sensor (F3/F4/F5) sensor well Installation and Maintenance...
  • Page 63 Service Manual (3) Malfunction of Overload Protection of Compressor (H3) and Discharge High-temperature Protection of Compressor (E4) Start Connect wire correctly according protector please add refrigerant Installation and Maintenance...
  • Page 64 Service Manual (4) Charging Malfunction of Capacitor (PU) Installation and Maintenance...
  • Page 65 Service Manual (5) Malfunction of Overload Protection (E8) Start sensor Replace fan capacitor Installation and Maintenance...
  • Page 66 Service Manual (6) Malfunction of IPM Protection (H5) Energize and according to correct wiring Installation and Maintenance...
  • Page 67 Service Manual (7) Malfunction of PFC Protection (HC) Start Installation and Maintenance...
  • Page 68 Service Manual (8) Malfunction of Communication (E6) Connect wire correctly Installation and Maintenance...
  • Page 69 Service Manual (9) Malfunction of Failure Start-up of Compressor (LC) Installation and Maintenance...
  • Page 70 Service Manual (10) Malfunction of Overcurrent Protection E5 Main detection points: Start speed is too low or fan doesnt rotate Installation and Maintenance...
  • Page 71 Service Manual (11) Other Malfunction 1.IPM module temperature sensor is open-circuited (P7) 2.Overheating protection of IPM module (P8) 3.Detection circuit malfunctions of phase-current of compressor (U1) 4.DC busbar voltage is too high (PH) 5.DC busbar voltage is too low (PL) 6.Malfunction of ODU DC fan (L3) Installation and Maintenance...
  • Page 72 Service Manual 9.3 Maintenance method for normal malfunction 1. Air Conditioner Cant be Started Up connected well. or poor connection for wiring correctly once 2. Poor Cooling (Heating) for Air Conditioner conditioner Add refrigerant. range details details details 3. Horizontal Louver Cant Swing Wrong wire connection, or poor connection operate...
  • Page 73 Service Manual 4. ODU Fan Motor Cant Operate Wrong wire connection, or poor connection fan capacitor. 5. Compressor Cant Operate Wrong wire connection, or poor connection fan capacitor. 6. Air Conditioner is Leaking pipe Replace drain pipe 7. Abnormal Sound and Vibration conditioner coil Installation and Maintenance...

  • Page 74: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit Installation and Maintenance...
  • Page 75 Service Manual Part Code Description GWH18AAD-K6DNA1B/I GWH18AAD-K6DNA1A/I GWH24AAD-K6DNA1A/I CB476N00600 CB476N00200 CB476N00100 Display Board 300001000037 300001000037 300001000037 11122089 11122089 11122089 20000200000801 20000200000801 20000200000801 20000400000401 20000400000401 20000400000401 10542036 10542036 10542036 10512732 10512732 10512732 26112512 26112512 26112512 10512037 10512037 10512037 Rear Case assy 000001000009 000001000009 000001000009...
  • Page 76 Service Manual Part Code Description GWH18AAD-K6DNA5A/I GWH18AAD-K6DNA4A/I CB488N00700 CB479N00600 Display Board 300001000042 300001000042 11122089 11122089 20000200000801 20000200000801 20000400000401 20000400000401 10542036 10542036 10512732 10512732 26112512 26112512 10512037 10512037 Rear Case assy 000001000009 000001000009 76712012 76712012 76512203 76512203 Ring of Bearing 26152025...
  • Page 77 Service Manual Part Code Description GWH24AAD-K6DNA5A/I GWH24AAE-K6DNA4C/I CB488N00500 CB479N00700 Display Board 300001000042 300001000042 11122089 11012007 20000200000801 20000200001502 20000400000401 20000400001301 10542036 10542036 10512732 10512737 26112512 26112513 10512037 10512037 Rear Case assy 000001000009 000001000016 76712012 76712012 76512203 76512203 Ring of Bearing 26152025 26152025 24212177 24212178...
  • Page 78 Service Manual Part Code Description GWH18AAD-K6DNA4B/I GWH18AAD-K6DNA5B/I CB479N01300 CB488N00600 Display Board 300001000042 300001000042 1112208906 11122089 20000200000801 20000200000801 20000400000401 20000400000401 10542036 10542036 10512732 10512732 26112512 26112512 10512037 10512037 Rear Case assy 000001000009 000001000009 76712012 76712012 76512203 76512203 Ring of Bearing 26152025 26152025 24212177 24212177...
  • Page 79 Service Manual Part Code Description GWH18AAD-K6DNA1A/I GWH24AAD-K6DNA1A/I CB476N00201 CB476N00101 Display Board 300001000037 300001000037 1112208906 1112208906 20000200000801 20000200000801 20000400000401 20000400000401 10542036 10542036 10512732 10512732 26112512 26112512 10512037 10512037 Rear Case assy 000001000009 000001000009 76712012 76712012 76512203 76512203 Ring of Bearing 26152025 26152025 24212177 24212177...
  • Page 80 Service Manual 10.2 Outdoor Unit GWH18AAD-K6DNA1A/O Installation and Maintenance...
  • Page 81 Service Manual Part Code Description GWH18AAD-K6DNA1A/O CB476W00200 22413046 01433034P 10333014 01205176P Drainage Joint 26113009 00103919G 030152000146 01713115P 030057000072 07133774 22243005 Big Handle 2623343106 0130324403P 4300040087 71010103 3900030902 Rear Grill 01473060 Condenser Assy 011002000417 01233168 Coping 01253034P Reactor 0170339802 1501371701 01795028 Left Side Plate 01303169P Electric Box Assy...
  • Page 82 Service Manual Technical Information...
  • Page 83 Service Manual Part Code Description GWH24AAD-K6DNA1A/O CB476W00100 22415010 01535013P Drainage Connecter 06123401 01700000161P01 Drainage Joint 06123401 00103919G Magnet Coil 030152000073 07133844 07133843 26113017 0130509001P 01705047 Handle 2623305301 71010003 Rear Grill 01475020 Condenser Assy 011002000177 Reactor 01235081 Coping 012049000007P 01795031 01705067 1501506402 10335008 Left Side Plate...
  • Page 84 Service Manual GWH18AAD-K6DNA1B/O 22 23 24 25 26 Installation and Maintenance...
  • Page 85 Service Manual Part Code Description GWH18AAD-K6DNA1B/O CB476W00600 Handle 01173194 011002000529 1501308507 Condenser Assy 01703136 Coping 01253081 Rear Grill 01475014 01233180 00103925G 76710287 030152000158 Big Handle 2623343106 03005700067 07133691 26113017 22413044 01433033 10333011 02803213 Electric Box Assy 017007000305 Electric Box 100002001857 Main Board 300027000337 Reactor...
  • Page 86 Service Manual GWH24QE-K6DNA1C/O Installation and Maintenance...
  • Page 87 Service Manual Part Code Description GWH24QE-K6DNA1C/O CB419W12200 22415010 01535013P 06123401 Drainage Connecter 01205816P 06813401 00103920 4300040087 Magnet Coil 03073274 07133844 07133855 01705046P 0130509001P 22245002 2623525404 Handle 01475020 Rear Grill 011002000049 Condenser Assy Reactor 01235081 01255005P Coping 01795031 01705067 1501506402 10335008 01305093P Left Side Plate 26233053...

  • Page 88: Removal Procedure

    Service Manual 11. Removal Procedure Caution: discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. Step Procedure Panel Clasps Location of Location of Installation and Maintenance...
  • Page 89 Service Manual Step Procedure Panel Display panel. Note: Screws panel. detecting plate Screw Screws Note: Screws Screw caps Clasp Installation and Maintenance...
  • Page 90 Service Manual Step Procedure Screws Clasps generator. of E screw Screw Screw Power cord Wire clip Circlip Holder Connector Installation and Maintenance...
  • Page 91 Service Manual Step Procedure Screws Clasp Rear Case assy Clasp Connection pipe Installation and Maintenance...
  • Page 92 Service Manual Step Procedure Motor clasp Screws Motor case Clasps Installation and Maintenance...
  • Page 93 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 GWH18AAD-K6DNA1A/O and discharge the refrigerant completely before removal. Step Procedure Screw Screw Screw Screw front grille. Screw Installation and Maintenance...
  • Page 94 Service Manual Step Procedure Screw Screw Screw grille. Screw Rear grill Screw Installation and Maintenance...
  • Page 95 Service Manual Step Procedure Left side plate Screw Screw assy Note: Installation and Maintenance...
  • Page 96 Service Manual Step Procedure Screw Motor Screw Note: Spot weld Installation and Maintenance...
  • Page 97 Service Manual Step Procedure Note: enter it. Screw Screw Installation and Maintenance...
  • Page 98 Service Manual Step Procedure Condenser Screw Installation and Maintenance...
  • Page 99 Service Manual GWH24AAD-K6DNA1A/O Steps Procedure 1. Remove top panel Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. handle top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 100 Service Manual Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. Remove the 6 screws connecing the left side plate and right side plate and then remove rear grill rear grill panel 3.
  • Page 101 Service Manual 4. Remove fan motor axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. motor support Remove the 4 tappin g screw s fixing the motor; disconnect the leading wire insert of the motor and then remove the moto r.
  • Page 102 Service Manual 6.Remove soundproof sponge Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully soundproof sponge 7. Remove Isolation sheet x i f and then remove the Isolation sheet. Isolation sheet 8. Remov e 4-way valv e assy Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy,and then remove the 4-way...
  • Page 103 Service Manual 9. Remov e compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. compressor 10.Remove condenser sub-assy Electron expansion valve support Remove the screws connecting the support (condenser) and condenser assy,and then remove the support(condenser). condenser sub-assy Remove the chassis sub-assy and condenser sub-assy.
  • Page 104 Service Manual GWH18AAD-K6DNA1B/O Steps Procedure 1. Before disassembly 2.Remove big handle big handle big handle and then remove the handle. big handle 3. Remove top cover top cover Remove connection screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 105 Service Manual Installation and Maintenance...
  • Page 106 Service Manual Installation and Maintenance...
  • Page 107 Service Manual Installation and Maintenance...
  • Page 108 Service Manual GWH24QE-K6DNA1C/O Steps Procedure 1. Remove top panel Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. handle valve top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 109 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 110 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 111 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 112 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 113: 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 display display display 60.8 69/70 69.8 78/79 78.8 62/63 62.6 71/72 71.6 80/81 80.6 64/65 64.4 73/74 73.4 82/83 82.4 66/67...

  • Page 114: Appendix 3: Pipe Expanding M

    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 Pipe Shaper Downwards Union pipe Pipe Hard mold Note: Expander Pipe...
  • Page 115 Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor (15K) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68 3.333 0.952 102.9 3.217 0.925...
  • Page 116 Service Manual Resistance Table of Tube Temperature Sensors for Outdoor and Indoor (20K) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14 4.14 1.198 18.13 3.998 1.164 116.5...
  • Page 117 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6 73.83 14.62 3.96 548.9 70.5 14.09 3.84 516.6 67.34...
  • Page 118 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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