GREE ELECTRIC GWH07AGA-K6DNA1A/O Service Manual
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GREE ELECTRIC GWH07AGA-K6DNA1A/O Service Manual

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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for GREE ELECTRIC GWH07AGA-K6DNA1A/O

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

  • Page 2: Table Of Contents

    Table of Contents Part Ⅰ : Technical Information ........2 1. Summary ..................2 2. Specifications ..................4 2.1 Specification Sheet ....................4 2.2 Capacity Variation Ratio According to Temperature .........14 2.3 Cooling and Heating Data Sheet in Rated Frequency .......15 3. Outline Dimension Diagram ............16 3.1 Indoor Unit ........................16 3.2 Outdoor Unit...
  • Page 3 8.6 Installation of Outdoor unit .................51 8.7 Vacuum Pumping and Leak Detection ............52 8.8 Check after Installation and Test operation ..........53 9. Maintenance ...................54 9.1 Error Code List ......................54 9.2 Procedure of Troubleshooting ................59 9.3 Troubleshooting for Normal Malfunction ............74 10.

  • Page 4: Part Ⅰ : Technical Information

    1. Summary Indoor Unit: Outdoor Unit: GWH07AGA-K6DNA1A/O GWH09AFC-K6DNA2F/O GWH12AFC-K6DNA2F/O GWH18AGD-K6DNA1E/O GWH24AFE-K6DNA2I/O Technical Information...
  • Page 5 Indoor model Outdoor model code product code Controller 1 GWH07AGA-K6DNA1A CB385001100 GWH07AGA-K6DNA1A/I CB385N01100 GWH07AGA-K6DNA1A/O CB385W01100 2 GWH09AGC-K6DNA1F CB385009700 GWH09AGC-K6DNA1F/I CB385N09700 GWH09AFC-K6DNA2F/O CB363W02900 3 GWH09AGC-K6DNA1F CB385009701 GWH09AGC-K6DNA1F/I CB385N09700 GWH09AFC-K6DNA2F/O CB363W02901 4 GWH12AGC-K6DNA1F CB385009300 GWH12AGC-K6DNA1F/I CB385N09300 GWH12AFC-K6DNA2F/O CB363W03600 YAP1F7 5 GWH12AGC-K6DNA1F CB385009301 GWH12AGC-K6DNA1F/I CB385N09300 GWH12AFC-K6DNA2F/O CB363W03601...

  • Page 6: Specifications

    2. Specifications 2.1 Specification Sheet Model GWH07AGA-K6DNA1A Product Code CB385001100 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2200 Heating Capacity 2400 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1300 Rated Cooling Current...
  • Page 7 Outdoor Unit Model GWH07AGA-K6DNA1A/O Outdoor Unit Product Code CB385W01100 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-N075zC170 Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range ºC...
  • Page 8 Model GWH09AGC-K6DNA1F GWH09AGC-K6DNA1F Product Code CB385009700 CB385009701 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 2700 2700 Heating Capacity 3000 3000 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1400 1400...
  • Page 9 Outdoor Unit Model GWH09AFC-K6DNA2F/O GWH09AFC-K6DNA2F/O Outdoor Unit Product Code CB363W02900 CB363W02901 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO.,LTD Compressor Model QXF-A082zC170 QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent ZE-G;ES RB68GX or equivalent Compressor Type Rotary Rotary Compressor LRA. Compressor RLA 2.56 2.56...
  • Page 10 Model GWH12AGC-K6DNA1F GWH12AGC-K6DNA1F Product Code CB385009300 CB385009301 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 3510 3510 Heating Capacity 3810 3810 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1550 1550...
  • Page 11 Outdoor Unit Model GWH12AFC-K6DNA2F/O GWH12AFC-K6DNA2F/O Outdoor Unit Product Code CB363W03600 CB363W03601 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO., LTD CO., LTD Compressor Model FTz-AN108ACBD FTz-AN108ACBD Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector...
  • Page 12 Model GWH18AGD-K6DNA1E GWH18AGD-K6DNA1E Product Code CB385009100 CB385009101 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 5300 5300 Heating Capacity 5600 5600 Cooling Power Input 1501 1501 Heating Power Input 1393 1393 Cooling Current Input Heating Current Input Rated Input 2350...
  • Page 13 Outdoor Unit Model GWH18AGD-K6DNA1E/O GWH18AGD-K6DNA1E/O Outdoor Unit Product Code CB385W09100 CB385W09101 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO.,LTD Compressor Model QXF-A120zH170A QXF-A120zH170A Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input 1096 1096...
  • Page 14 Model GWH24AGE-K6DNA1A GWH24AGE-K6DNA1A Product Code CB385007500 CB385007501 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 7100 7100 Heating Capacity 7800 7800 Cooling Power Input 2030 2030 Heating Power Input 2000 2000 Cooling Current Input Heating Current Input Rated Input 3000...
  • Page 15 Outdoor Unit Model GWH24AFE-K6DNA2I/O GWH24AFE-K6DNA2I/O Outdoor Unit Product Code CB363W04100 CB363W04101 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO,LTD. CO,LTD. Compressor Model QXFS-M180zX170 QXFS-M180zX170 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Twin Rotary Twin Rotary Compressor LRA. Compressor RLA Compressor Power Input 1610...

  • Page 16: Capacity Variation Ratio According To Temperature

    2.2 Capacity Variation Ratio According to Temperature GWH07AGA-K6DNA1A Heating Cooling Condition Indoor:DB27°C WB19°C Conditions Indoor air flow: High Indoor:DB20°C Pipe length:5m Indoor air flow:Super High Pipe length:5m -15 -10 -5 10 15 20 25 30 35 40 43 Heating operation ambient temperature range is -15ºC~30ºC Cooling Heating 9/12K...

  • Page 17: Cooling And Heating Data Sheet In Rated Frequency

    2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe connecting Inlet and outlet pipe temperature of Rated cooling condition(°C) (DB/WB) indoor and outdoor unit heat exchanger Fan speed of Fan speed of Model indoor unit outdoor unit Indoor Outdoor...

  • Page 18: Outline Dimension Diagram

    3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Φ55 Unit:mm Φ70 Model 122.5 707.5 1075 707.5 183.5 * Recommended distance Technical Information...

  • Page 19: Outdoor Unit

    3.2 Outdoor Unit GWH07AGA-K6DNA1A/O Unit:mm GWH09AFC-K6DNA2F/O GWH12AFC-K6DNA2F/O Unit:mm Technical Information...
  • Page 20 GWH18AGD-K6DNA1E/O Unit:mm GWH24AFE-K6DNA2I/O Unit:mm Technical Information...

  • Page 21: Refrigerant System Diagram

    4. Refrigerant System Diagram COOLING 7/9K 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 Capillary Strainer COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 22: Electrical Part

    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 23 GWH09AGC-K6DNA1F/I GWH12AGC-K6DNA1F/I OPTIONAL OPTIONAL TUBE ROOM GATE WIRED TEMP. TEMP. RECEIVER AND FAN MOTOR CONTROL CONTROLLER SENSOR SENSOR DISPLAY BOARD DISPLAY COM-MANUAL (DRY-C) T-SENSOR DISP TERMINAL DOOR-C BLOCK N(1) N(N1) PRINTED CIRCUIT BOARD COM-OUT JUMP AC-L YEGN CONNECTING SWING-UD1 SWING-UD2 YEGN SWING-LR HEALTH...
  • Page 24 ● Outdoor Unit GWH07AGA-K6DNA1A/O OPTIONAL OPTIONAL OPTIONAL WARNING Bottom 4-WAY ELECTRONIC OUTROOM EXHAUST OUTTUBE Please don't touch any terminal Band EXPANSION VALVE TEMP. TEMP. TEMP. VALVE when the machine is running , Heater SENSOR SENSOR SENSOR stopping or has been powered off...
  • Page 25 GWH18AGD-K6DNA1E/O GWH24AFE-K6DNA2I/O WARNING OPTIONAL OPTIONAL BOTTOM OUTROOM EXHAUST ELECTRONIC OUTTUBE Please don't touch any terminal BAND EXPANSION TEMP. TEMP. TEMP. when the machine is running , HEATER SENSOR SENSOR SENSOR VALVE stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock ！...

  • Page 26: Pcb Printed Diagram

    5.2 PCB Printed Diagram Indoor Unit GWH07AGA-K6DNA1A/I Name Name Communication interface Up&down 1 swing interface Terminal of live wire used for 10 Left&right swing interface supplying power for outdoor unit Fuse Interface of PG feedback Live wire 12 Display board Needle stand for tube Neutral wire temperature sensor...
  • Page 27 GWH09AGC-K6DNA1F/I GWH12AGC-K6DNA1F/I Name Name Communication interface Left&right swing interface Live wire 10 Terminal for display board Interface of PG motor Needle stand for temperature sensor Interface of neutral wire 12 Interface of gate-control Fuse 13 Wired controller Interface of health function 14 Jumper cap Up&down swing interface 2 15 Output terminal of live wire...
  • Page 28 GWH18AGD-K6DNA1E/I GWH24AGE-K6DNA1A/I Name Name Fuse Up&down swing 1 Live wire 10 Interface of display board Neutral wire Temperature sensor Dommunication wire 12 Door control DC fan 13 Wired controller Cold plasma 14 Earthing wire Left&right swing 15 Terminal of live wire Up&down swing 2 Technical Information...
  • Page 29 Outdoor Unit GWH07AGA-K6DNA1A/O Name Name E store 4-way valve Electronic expansion valve Neutral wire Overload 10 communication cable Temperature sensor Live wire Outdoor fan 12 Earthing wire DRED(preliminary) 13 Fuse Electric heating belt of chasssis 14 Three-phase terminal of compressor...
  • Page 30 GWH09AFC-K6DNA2F/O GWH12AFC-K6DNA2F/O Name Earthing wire Neutral wire, live wire and communication cable 4-way valve Electric heating belt of chassis Outdoor fan Electronic expansion valve Temperature sensor Three-phase terminal of compressor Technical Information...
  • Page 31 GWH18AGD-K6DNA1E/O 9 10 Name Name Earthing wire Outdoor fan Live wire DRED(preliminary) Neutral wire 10 Electronic expansion valve communication cable Overload 4-way valve 12 Temperature sensor 13 EE flash drive Electric heating belt of chassis DRED-DC(preliminary) 14 Three-phase terminal of compressor Technical Information...
  • Page 32 GWH24AFE-K6DNA2I/O Name Name Terminal of electronic expansion valve 4-way valve E disk(Reserved) 10 Electric heating belt of chassis Computer monitoring interface 2-way valve EE flash drive 12 DC motor Grounding wire 13 Temperature sensor Live wire 14 Overload interface of compressor Neutral wire 15 Terminal of compressor Communication wire...

  • Page 33: Function And Control

    6. Function and Control 6.1 Remote Controller Introduction NOTE: ● This is a general use remote controller. It could be used for the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status. ●...
  • Page 34 ● Set temperature range from remote controller: 16~30OC(61- NOTE: ● Press this button continuously more than 2s, the main unit 86O C ). Fan speed: auto,quiet,low speed, low-medium speed,medium speed,medium-high speed, high speed. will swing back and forth from left to right, and then loosen ●...
  • Page 35 blinking. " " icon resumes displaying. Cancel T-ON: Unde Otherwise, remote controller will quit setting status. Operation the condition that T-ON is started up, press "T-ON " button to for TIMER ON/TIMER OFF is the same. cancel it. ● T-OFF button "T-OFF"...
  • Page 36 ● Sleep function and energy-saving function can't operate at WiFi the same time. If energy-saving function has been set under cool mode, press "SLEEP" button will cancel energy-saving Press " WiFi " button to turn on WiFi function, " WiFi " icon will function.
  • Page 37 R e p l a c e m e n t o f b a t t e r i e s i n r e m o t e NOTE: controller The self-cleaning function can only work under normal ambient temperature.

  • Page 38: Gree+ App Operation Manual

    6.2 GREE+ App Operation Manual Control Flow Chart Internet Gree Cloud Gree Home Wi-Fi Cellular/ intelligent home Other Wi-FI appliances Home wireless router Home Wi-Fi GREE+ APP 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 39: Ewpe Smart App Operation 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 Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version Download and installation...

  • Page 40: Brief Description Of Models And Functions

    6.4 Brief Description of Models and Functions ●Indoor Unit General timer and clock timer functions are compatible by 1.Basic function of system equipping remote controller with different functions. (1)Cooling mode (6) Memory function (1) Under this mode, fan and swing operates at setting status. memorize compensation temperature, off-peak energization value.
  • Page 41 After power recovery, compressor can only be started up after C, compressor stops operation and outdoor fan will stop 30s 180+T s at least. later. Indoor fan will be in residual-heat blowing status. (13) SE control mode ④ When unit is turned off under heating mode or changed to other The unit operates at SE status.

  • Page 42: Part Ⅱ : Installation And Maintenance

    7. Notes for Installation and Maintenance Safety Precautions: Important! 12. Make sure all wires and pipes are connected properly and the valves are opened before energizing. 13. Check if there is electric leakage on the unit body. If yes, Please read the safety precautions carefully before please eliminate the electric leakage.
  • Page 43 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 5.When installing the unit, make sure that connection keep the refrigerant circuit free from air or substances pipe is securely connected before the compressor other than the specified refrigerant.
  • Page 44 has running fire (such as fire source,working coal gas ware, Safety Precautions for Refrigerant operating heater). ●It is not allowed to drill hole or burn the connection pipe. ●To realize the function of the air conditioner unit, a special ●The air conditioner must be installed in a room that is larger refrigerant circulates in the system.
  • Page 45 ●The refrigerant should be recycled into the specialized surveyed to make sure that there are no flammable hazards or storage tank. ignition risks. “ NO Smoking ” signs shall be displayed. ●Ventilated area Filling the refrigerant ●Use the refrigerant filling appliances specialized for R32. Ensure that the area is in the open or that it is adequately Make sure that different kinds of refrigerant wont contaminate ventilated before breaking into the system or conducting any hot...
  • Page 46 ●Removal and evacuation terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. When breaking into the refrigerant circuit to make repairs – or Ensure that the apparatus is mounted securely. for any other purpose –conventional procedures shall be used. Ensure that seals or sealing materials have not degraded to the However, for flammable refrigerants it is important that best point that they no longer serve the purpose of preventing the...
  • Page 47 Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Universal meter Drill head Electric drill Electroprobe Open-end wrench Inner hexagon Electronic Torque wrench spanner leakage detector Pressure meter Pipe pliers Pipe pliers Vacuum pump Pipe cutter Pipe expander Pipe bender Soldering appliance...

  • Page 48: Installation

    8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm Space to the wall At least 15cm Space to the obstruction At least 50cm Drainage pipe Installation and Maintenance...
  • Page 49 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 wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 50: Installation Parts-Checking

    8.2 Installation Parts-checking (3) The location should be able to withstand the weight of outdoor unit. (4) Make sure that the installation follows the requirement of Name installation dimension diagram. Indoor unit (5) Select a location which is out of reach for children and far Outdoor unit away from animals or plants.If it is unavoidable, please add fence Connection pipe...

  • Page 51: Installation Of Indoor Unit

    4. Outlet Pipe Model Air switch capacity Power cord (1) The pipe can be led out in the direction of right, rear right, left 07/09/12K 3G1.0 or rear left.(As show in Fig.3) 3G1.5 (2) When selecting leading out the pipe from left or right, please 3G2.5 cut off the corresponding hole on the bottom case.(As show in Fig.4)
  • Page 52 6. Install Drain Hose (1) Connect the drain hose to the outlet pipe of indoor unit.(As 9/12/18/24K show in Fig.8) N(1) N(1) (2) Bind the joint with tape.(As show in Fig.9) yellow- yellow- blue blue black brown black brown green green Outdoor unit connection Outdoor unit connection...

  • Page 53: Installation Of Outdoor Unit

    Note: (1) The power cord and control wire cant be crossed or winding. (2) The drain hose should be bound at the bottom. 9. Hang the Indoor Unit (1) Put the bound pipes in the wall pipe and then make them pass Drain vent Chassis through the wall hole.

  • Page 54: Vacuum Pumping And Leak Detection

    5. Connect Outdoor Electric Wire (1) Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; fix them with screws.(As show in The drain hose can't be fluctuant Fig.23) The water outlet The drain...

  • Page 55: Check After Installation And Test Operation

    8.8 Check after Installation and Test operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed The unit may drop, shake or firmly? emit noise. It may cause insufficient Have you done the refrigerant leakage test?

  • Page 56: Maintenance

    9. Maintenance 9.1 Error Code List Display Method Possible Causes(For specific maintenance Malfunction A/C Status method, please refer to the following procedure of of Indoor Unit Name (Error Code) troubleshooting) 1. Refrigerant was superabundant; High pressure Cool/Dry: except indoor fan operates, all 2.
  • Page 57 1. Loosening or bad contact of Indoor evaporator temp. Indoor AC stops operation once reaches the sensor and mainboard terminal. evaporator setting temperature. Cooling, drying: 2. Components on the mainboard fall down leads short temperature internal fan motor stops operation while circuit.
  • Page 58 Malfunction of module Cool/Dry: compressor will stop while indoor temperature sensor fan will operate; Replace outdoor control panel AP1 circuit Heat: all loads stops operation. After the complete unit is de-energized for 20mins, check Module high Cool:compressor will stop while indoor whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is temperature...
  • Page 59 Malfunction of voltage Cool/Dry: compressor will stop while indoor dropping for DC fan will operate; Supply voltage is unstable busbar Heat: all loads stops operation. Malfunction of Cool/Dry: the compressor will stop while Theres circuit malfunction on outdoor units control panel complete units current indoor fan will operate;...
  • Page 60 If malfunction occurs,corresponding code will display and the unit will resume normal until protection or malfunction disappears. Installation and Maintenance...

  • Page 61: Procedure Of Troubleshooting

    9.2 Procedure of Troubleshooting ●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 62 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the terminal of motor connected tightly? ● The fan motor can't operate? ● The motor is broken? ● Detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: 2.1 PG motor Start...
  • Page 63 2.2 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate smoothly. Put through the power to check whether the malfunction is eliminated Under power-off status,...
  • Page 64 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? ● Detection circuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Appearance of the...
  • Page 65 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 back on The unit returns to normal.
  • Page 66 5. High Temperature and Overload Protection (AP1 below means control board of outdoor unit) E8 Start Normal protection, please use it Unit restarts If the outdoor ambient temperature is after improving the outdoor ambient normally higher than 53°C? temperature Improve the radiating environment of Unit restarts unit (clean the heat exchanger and is good?
  • Page 67 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 68 ●Outdoor unit: 1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: ● Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; ● Is reactor (L) well connected? Is connection wire loosened or pull-out? Is reactor (L) damaged? Malfunction diagnosis process: Turn on the unit and wait 1 minute...
  • Page 69 2.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan is running normal; ● If the radiating environment of indoor and outdoor unit is well. Malfunction diagnosis process: Anti-high temperature, overload protection...
  • Page 70 3.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 71 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? Does startup fail?
  • Page 72 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 once the Out of step occurs in unit is powered on.
  • Page 73 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 electronic expansion valve...
  • Page 74 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:...
  • Page 75 8. Malfunction of Overcurrent Protection 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 Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate eliminated Is the supply voltage too low...

  • Page 76: Troubleshooting For Normal Malfunction

    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 connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 77 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make sure all wiring terminals are connected firmly connection diagram Measure the capacity of fan capacitor with an...

  • Page 78: Exploded View And Parts List

    10. Exploded View and Parts List 10.1 Indoor Unit GWH07AGA-K6DNA1A/I ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 79 Description Evaporator Support Axile Bush Sub-assy Cross Flow Fan Evaporator Assy Motor Press Plate Wall Mounting Frame Sub-assy Fan Motor Rear Case Connecting pipe clamp Screw Cover Plasmacluster Ion Rubber Plug (Water Tray) Air Louver Crank Stepping Motor Stepping Motor Air Louver (Auto) Stepping Motor Electric Box Assy...
  • Page 80 GWH09AGC-K6DNA1F/I GWH12AGC-K6DNA1F/I ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 81 Description Front Panel Guide Louver (upper) Guide Louver (lower) Screw Cover Front Case Filter Sub-Assy Helicoid Tongue Air Louver(left) Left Axile Bush Rear Case assy Ring of Bearing O-Gasket sub-assy of Bearing Evaporator Support Wall Mounting Frame Evaporator Assy Cross Flow Fan Motor Press Plate Fan Motor Connecting pipe clamp...
  • Page 82 GWH18AGD-K6DNA1E/I ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 83 Description Front Panel Front Case Assy Guide Louver Sub-assy 1 Guide Louver Sub-assy 2 Plug Pin Left Axile Bush Rear Case Cross Flow Fan Ring of Bearing O-Gasket sub-assy of Bearing Evaporator Support Evaporator Assy Fan Motor Motor Press Plate Wall Mounting Frame Sub-assy Electric Box Assy Connecting pipe clamp...
  • Page 84 GWH24AGE-K6DNA1A/I ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 85 Description Front Panel Filter Sub-Assy Screw Cover Front Case Plug Pin Guide Louver Sub-assy 1 Guide Louver Sub-assy 2 Sweeping Connecting Rod Air Louver(Automatic) Helicoid Tongue Left Axile Bush Rear Case Drainage Hose Cross Flow Fan O-Gasket sub-assy of Bearing Ring of Bearing Evaporator Support Evaporator Assy...

  • Page 86: Outdoor Unit

    10.2 Outdoor Unit GWH07AGA-K6DNA1A/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 87 Description Left Side Plate Motor Support Top Cover Sub-Assy Top cover Condenser Sub-Assy Sponge(Condenser) Condenser Assy Electric Box Assy Electric Box Temp Sensor Sleeving Main Board Terminal Board Silencer Earthing Plate Sub-assy Handle Valve Support Block Right Side Plate Cut-off valve 1/4(N) Valve Support Sensor Insert Compressor and Fittings...
  • Page 88 GWH09AFC-K6DNA2F/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 89 Description Coping 4-Way Valve 4-Way Valve Assy Sponge(Condenser) Temperature Sensor Support Condenser Assy Capillary Sub-assy Sensor Insert Right Side Plate Earthing Plate Sub-Assy Wire Clamp Valve Cover Silencer Cut-off valve 3/8(N) Cut-off valve 1/4(N) Valve Support Compressor and Fittings Chassis Sub-assy Motor Support Fan Motor Axial Flow Fan...
  • Page 90 GWH12AFC-K6DNA2F/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 91 Description Coping Supporting Board(Condenser) 4-Way Valve Temperature Sensor Support Condenser Assy Temp Sensor Sleeving Sensor Insert Handle Right Side Plate Earthing Plate Sub-assy Wire Clamp Electronic Expansion Valve Electric Expand Valve Fitting Valve Cover Silencer Cut off Valve Sub-Assy Strainer Cut off Valve Assy Valve Support 4-Way Valve Assy...
  • Page 92 GWH18AGD-K6DNA1E/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 93 Description Top Cover Assy Condenser Assy 4-Way Valve Tempreture Sensor clamp 4-Way Valve Assy Electric Expand Valve Fitting Electric Expansion Valve Sub-Assy Wire Clamp Right Side Plate Earthing Plate Sub-assy Handle Valve Cover Cut-off valve 1/4(N) Cut-off valve 1/2(N) Valve Support Compressor and Fittings Chassis Sub-assy Cabinet...
  • Page 94 GWH24AFE-K6DNA2I/O 9 10 The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 95 Description Front Grill Front Panel Axial Flow Fan Chassis Sub-assy Compressor and Fittings Electronic Expansion Valve Assy Right Side Plate Valve Support Cut-off valve 1/4(N) Cut-off valve 5/8(N) Valve Cover Handle Terminal Board 4-Way Valve Assy Condenser Assy Clapboard Assy Motor Support Brushless DC Motor Top Cover Assy...

  • Page 96: Removal Procedure

    11. Removal Procedure Caution: discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. Step Procedure Before disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1. Remove filter Filter Hold the handle on the filter, pull it upwards to let the clasp at the top part of the filter loose, push it forwards and then the filter can be pulled out.
  • Page 97 Step Procedure 3.Remove panel Panel rotation Panel Display Open the front panel; separate the panel rotation shaft Screws from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the panel.
  • Page 98 Step Procedure 6.Remove electric box assy Remove the screw fixing electric box assy. Step motor Indoor tube Grounding temperature sensor Electric box assy screw ① Cut off the wire binder and pull out the Main board indoor tube temperature sensor. ②...
  • Page 99 Step Procedure 5.Remove panel Remove 3 screws fixing evaporator assy. At the back of the unit, Loosen the clasp of the connection pipe clamp and then remove the connection pipe clamp. First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 100 Step Procedure 8. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screw Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. 9.

  • Page 101: Removal Procedure Of Outdoor Unit

    Caution: discharge the refrigerant 11.2 Removal Procedure of Outdoor Unit completely before removal. GWH07AGA-K6DNA1A/O Step Procedure 1. Before disassembly 2. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel. 3. Remove big handle Remove the screws fixing big handle, then remove the big handle.
  • Page 102 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front Panel Assy 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right plate, and remove the right side plate assy.
  • Page 103 Step Procedure 7. Remove gas valve and liquid valve Unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Discharge the refrigerant completely befor unsoldering; liquid valve when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by welding joint high temperature.
  • Page 104 Step Procedure 10. Remove axial flow fan Remove the nut on the fan and then remove the axial flow fan. axial flow fan 11. Remove motor Remove the screws fixing the motor and then remove the motor. motor 12. Remove motor support Remove the screws fixing the motor support and lift the motor support to remove it.
  • Page 105 Step Procedure 13. Remove 4-way valve assy 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
  • Page 106 Caution: discharge the refrigerant GWH09AFC-K6DNA2F/O GWH12AFC-K6DNA2F/O completely before removal. Step Procedure 1. Before disassembly 2. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel. 3. Remove big handle and valve cover big handle Remove the screws fixing big handle, valve cover and then remove them.
  • Page 107 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front Panel Assy 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right plate, and remove the right side plate assy.
  • Page 108 Step Procedure 7. Remove gas valve and liquid valve Unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Discharge the refrigerant completely befor unsoldering; liquid valve when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by welding joint high temperature.
  • Page 109 Step Procedure 10. Remove axial flow fan Remove the nut on the fan and then remove the axial flow fan. axial flow fan 11. Remove motor Remove the screws fixing the motor and then remove the motor. motor 12. Remove motor support Remove the screws fixing the motor support and lift the motor support to remove it.
  • Page 110 Step Procedure 13. Remove 4-way valve assy 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
  • Page 111 Caution: discharge the refrigerant GWH18AGD-K6DNA1E/O completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the screws fixing big handle, valve cover and then remove them. valve cover 3. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 112 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. front panel 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right plate, and remove the right side plate assy.
  • Page 113 Step Procedure 7. Remove electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard are removed and the electrical box assy are removed. 8. Remove motor Remove the screws fixing the motor and then remove the motor.
  • Page 114 Step Procedure 10. Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Discharge the refrigerant completely befor unsoldering; welding joint when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by...
  • Page 115 Step Procedure 13. Remove isolation sheet electric expand Remove the screws fixing the isolation valve fitting sheet and then remove the isolation sheet. electric expansion valve sub-Assy welding joint 14. Remove clapboard assy clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy.
  • Page 116 Caution: discharge the refrigerant GWH24AFE-K6DNA2I/O completely before removal. Step Procedure 1. Before disassembly 2. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel. 3. Remove big handle and valve cover Remove the screws fixing big handle, valve cover and big handle then remove them.
  • Page 117 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. front panel 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, right side plate loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right...
  • Page 118 Step Procedure 7. Remove valve suppprt Remove the screws fixing valve support, then remove the valve support. valve supprt 8. Remove electronic expansion valve Remove the terminals of the electronic expansion valve coil and rotate to remove the electronic expansion valve coil.
  • Page 119 Step Procedure 10. Remove 4-way valve assy 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
  • Page 120 Step Procedure 12. Remove motor support Remove the screws fixing the motor support and lift the motor support to remove it. motor support 14. Remove clapboard assy clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy. 15.

  • Page 121: Appendix

    Appendix Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius F） （ F） （ C） F） （ F） （...

  • Page 122: Appendix 3: Pipe Expanding Method

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

  • Page 123: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Temp( Temp( Temp( Temp( 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32 14.36 6.28...
  • Page 124 JF00304636 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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