Gree GWH09AVCXB-K6DNA1B/O Service Manual
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Gree GWH09AVCXB-K6DNA1B/O Service Manual

Gree GWH09AVCXB-K6DNA1B/O Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GWH09AVCXB-K6DNA1B/O

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

  • Page 2: Table Of Contents

    ..........24 6.1 Remote Controller Introduction for YBE1FB9 and YBE1FB12 ....24 6.2 Brief Description of Models and Functions ..........30 6.3 GREE+ App Operation Manual ................37 Part II : Installation and Maintenance ....38 7. Notes for Installation and Maintenance ... 38 8.
  • Page 3 Service Manual 8.6 Installation of Outdoor Unit ................52 8.7 Vacuum Pumping and Leak Detection ............53 8.8 Check after Installation and Test Operation ..........54 9. Maintenance ..............55 9.1 Error Code List ......................55 9.2 Procedure of Troubleshooting ................60 9.3 Troubleshooting for Normal Malfunction ............72 10.

  • Page 4: Part I : Technical Information

    Wifi Wifi Health Health On/Off On/Off Wifi Wifi Health Health UD-swing UD-swing Humidity Humidity LR-swing LR-swing UD-swing UD-swing Humidity Humidity LR-swing LR-swing Timer Timer Sleep Sleep Light Light Timer Timer Sleep Sleep Light Light Outdoor Unit: GWH09AVCXB-K6DNA1B/O GWH12AVCXD-K6DNA1A/O GWH24AVEXF-K6DNA1A/O GWH18AVDXE-K6DNA1A/O...

  • Page 5: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet Model GWH09AVCXB-K6DNA1B CB601000400/CB601000402/ CB601000401/CB601000403/ Product Code CB601000404/CB601000405/ CB601000407/CB601000408/ CB601000406 CB601000409 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 3000 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input...
  • Page 6 Service Manual Outdoor Unit Model GWH09AVCXB-K6DNA1B/O Outdoor Unit Product Code CB601W00400 CB601W00401 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent Compressor Type Rotary Compressor L.R.A. Compressor RLA 2.56 Compressor Power Input 756.6...
  • Page 7 Service Manual Model GWH12AVCXD-K6DNA1A CB601000100/CB601000104/ CB601000101/CB601000105/ Product Code CB601000106/CB601000107/ CB601000109/CB601000110/ CB601000108 CB601000111 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 3810 Cooling Power Input Heating Power Input Cooling Current Input 4.18 Heating Current Input 4.55 Rated Input...
  • Page 8 Service Manual Outdoor Unit Model GWH12AVCXD-K6DNA1A/O Outdoor Unit Product Code CB601W00100 CB601W00101 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A098zE170 Compressor Oil ZE-GLES RB68GX or equivalent Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 9 Service Manual Model GWH18AVDXE-K6DNA1A CB601000300/CB601000304/ CB601000301/CB601000305/ Product Code CB601000306/CB601000307/ CB601000310/CB601000311/ CB601000308/CB601000313 CB601000312 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1472 Heating Power Input 1365 Cooling Current Input Heating Current Input Rated Input 2300...
  • Page 10 Service Manual Outdoor Unit Model GWH18AVDXE-K6DNA1A/O Outdoor Unit Product Code CB601W00300 CB601W00301 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-M130zF170 Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor L.R.A. Compressor RLA 5.36 Compressor Power Input 1196 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...

  • Page 11: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling: Heating: Condition Cooling Condition Heating Indoor: DB27°C WB19°C Indoor: DB20°C Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp.

  • Page 12: Cooling And Heating Data Sheet In Rated Frequency

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

  • Page 13: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit Unit: mm(inch) (6 17/64) (7 3/4) (6 13/16) (5 7/16) (9 29/64) (8 7/64) Unit: mm Model 205.3 561.5 203.2 1110 275.4 561.5 273.1...

  • Page 14: Outdoor Unit

    Service Manual 3.2 Outdoor Unit Unit: mm 12K(XD) Unit: mm Technical Information...
  • Page 15 Service Manual Unit: mm...

  • Page 16: Refrigerant System Diagram

    COOLING 4. Refrigerant System Diagram Service Manual Outdoor unit Indoor unit pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat Liquid exchanger pipe (condenser) side Valve Electron Strainer Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe: 1/4"...

  • Page 17: Electrical Part

    5. Electrical Part Service Manual 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 louver for this model. ●...
  • Page 18 Service Manual GWH18AVDXE-K6DNA1A/I GWH24AVEXF-K6DNA1A/I OPTIONAL OPTIONAL OPTIONAL TUBE ROOM GATE TEMP. TEMP. RECEIVER AND MOTOR WIRED CONTROL DISPLAY BOARD SENSOR SENSOR MODULE CONTROLLER AP1 DISPLAY θ θ TERMINAL DOOR-C T-SENSOR DISP DC-MOTOR COM-MANUAL BLOCK (DRY-C) N(N1) N(1) COM-OUT PRINTED CIRCUIT BOARD AC-L JUMP YEGN...
  • Page 19 Service Manual GWH18AVDXE-K6DNA1A/I GWH24AVEXF-K6DNA1A/I OPTIONAL OPTIONAL OPTIONAL OPTIONAL TUBE ROOM GATE TEMP. TEMP. RECEIVER AND WIRED CONTROL DISPLAY BOARD SENSOR SENSOR MODULE CONTROLLER AP1 DISPLAY θ θ DISPLAY MOTOR FRESH AIR MODULE TERMINAL DOOR-C BLOCK N-AIR T-SENSOR DISP COM-MANUAL (DRY-C) N(N1) N(1) COM-OUT...
  • Page 20 Service Manual ● Outdoor Unit GWH09AVCXB-K6DNA1B/O GWH12AVCXD-K6DNA1A/O WARNING OPTIONAL OPTIONAL OPTIONAL Bottom 4-WAY ELECTRONIC OUTROOM EXHAUST OUTTUBE Please don't touch any EXPANSION Band VALVE TEMP. TEMP. TEMP. terminal when the machine is VALVE Heater SENSOR SENSOR SENSOR running, stopping or has been...
  • Page 21 Service Manual GWH18AVDXE-K6DNA1A/O GWH24AVEXF-K6DNA1A/O WARNING OPTIONAL OPTIONAL Please don't touch any BOTTOM OUTROOM EXHAUST ELECTRONIC OUTTUBE terminal when the machine is BAND EXPANSION TEMP. TEMP. TEMP. running, stopping or has been HEATER SENSOR SENSOR SENSOR VALVE powered off for less than 30 minutes to prevent the risk of electric shock ! MAGNETIC RING...

  • Page 22: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram ● Indoor Unit GWH09AVCXB-K6DNA1B/I GWH12AVCXD-K6DNA1A/I GWH18AVDXE-K6DNA1A/I GWH24AVEXF-K6DNA1A/I 9 10 11 12 Name Name Neutral Wire Insertion Stepping Motor Needle Stand 2 Live Wire Insertion Stepping Motor Needle Stand 4 Earthing Wire Insertion Left & Right Swing Needle Stand Communication Wire Insertion Display Board Needle Stand Brushless DC Motor Needle Stand...
  • Page 23 Service Manual ● Outdoor Unit GWH09AVCXB-K6DNA1B/O GWH12AVCXD-K6DNA1A/O Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Live Wire Insertion Electronic Expansion Valve Needle Stand Neutral Wire Insertion Compressor Overload Needle Stand Communication Wire Insertion Temperature Sensor Needle Stand Four-way Valve Needle Stand...
  • Page 24 Service Manual GWH12AVDXE-K6DNA1A/O 10 11 Name Name Earthing Wire Insertion Two-way Valve Needle Stand Live Wire Insertion Electronic Expansion Valve Needle Stand Communication Wire Insertion Outdoor Fan Needle Stand Neutral Wire Insertion Temperature Sensor Needle Stand Chassis Electric Heating Belt Needle Stand Compressor Overload Needle Stand Four-way Valve Needle Stand Compressor Needle Stand...
  • Page 25 Service Manual GWH18AVDXE-K6DNA1A/O 9 1011 Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Live Wire Insertion Temperature Sensor Needle Stand Communication Wire Insertion Compressor Overload Needle Stand Neutral Wire Insertion DRED Power Supply Needle Stand Four-way Valve Needle Stand Compressor Needle Stand Chassis Electric Heating Belt Needle Stand EEP Flash Drive Needle Stand...
  • Page 26 Service Manual GWH24AVEXF-K6DNA1A/O Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Live Wire Insertion Temperature Sensor Needle Stand Neutral Wire Insertion Compressor Overload Needle Stand Communication Wire Insertion Compressor Needle Stand Four-way Valve Needle Stand Electronic Expansion Valve Needle Stand Chassis Electric Heating Belt Needle Stand EEP Flash Drive Needle Stand Technical Information...

  • Page 27: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction for YBE1FB9 and YBE1FB12 Buttons on remote controller Introduction for icons on display screen YBE1FB9 YBE1FB12 Quiet Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode X-FAN function...

  • Page 28: Fan Button

    Service Manual heat mode with remote cont roller, press On/Off button can't Health button start up the unit. Press this button to turn on or turn off the health function and UVC lamp in operation status. 3. Fan button blank No Setting This button is used for setting Fan Speed in the sequence that ●...

  • Page 29: Humidity Button

    Service Manual function. The humidity will be affected by the factors such as Humidity button indoor and outdoor environment, degree of indoor sealing and Under cooling mode, press this button can select humidity control indoor flow. with cooling mode, smart dehumidification with cooling mode, and ●...
  • Page 30 Service Manual ● Time interval between two operations can't exceed 5s. quit and resume to display the original displaying. In the presetting or enquiry procedure, press On/Off button, Mode Otherwise, remote controller will exit the setting status automatically. button, Timer button or Sleep button, the sleep curve setting or enquiry status will quit similarly.
  • Page 31 Service Manual function Clean reminder function of filter function is for limiting power of the whole unit. Press Mode and The reminder function is defaulted to be OFF. Hold On/Off and " Sleep buttons simultaneously, the remote controller will circularly "...
  • Page 32 Service Manual display status on the remote controller may be different. where indoor unit can receive the signal sent by the remote controller. ● This function is only available for some models. Two-way ventilation function Auto clean function Under turning on, press Mode and Health buttons simultaneously Under unit off status, hold Mode and "...

  • Page 33: Brief Description Of Models And Functions

    Service Manual 6.2 Brief Description of Models and Functions Indoor Unit ● Compressor, outdoor fan, 4-way valve and electric heating tube stop operation. Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 16~30°C. 1.
  • Page 34 Service Manual mode (cooling, heating, and fan) according to indoor ambient unit has entered into defrosting status, indoor unit will cancel temperature. There swill be 30s delayed for protection between to send compulsory mode to outdoor unit. If outdoor unit hasnt mode switchover.

  • Page 35: Basic Functions

    Service Manual Press Fan Speed button to cancel turbo setting. Turbo function is (1) If the compressor is shut down, and [(T – indoor ambient temperature not available under auto, drying and fan modes. ) –T ] < 0°C , start the machine heating indoor ambient temperature compensation setup to enter into heating operations for heating;...
  • Page 36 Service Manual 3. Air-supplying mode (4) Evaporatorrozen-preventing protection function The compressor is switched off. 1. Starting estimation: 4. Heating mode When the indoor unit is running 6 minutes (the compressor is turned on), the T ≤[T (the temperature of inner pipe frozen-preventing stop (1) Start the machine to enter into heating operation for heating, hysteresis is 2 )] is detected in 3 minutes., then enter the frozen-...
  • Page 37 Service Manual ] , you should limit the frequency raising of compressor. continuously occurs for six times, it should not be resumed speed of module automatically, and you should press the ON/OFF button to 3. Reducing frequency at normal speed and power turn-off: resume.
  • Page 38 Service Manual if it still can’t run when the reversion abnormity protection for four- and sensor failure at the same time (for example: the compressor way valve happens to stop working for 3 times in succession, it is stops immediately when the outdoor tube sensor short-circuit, available if presses ON/OFF.
  • Page 39 Service Manual Cleaning method: wipe the quartz glass with soft cloth until the radiation may, even in small doses, cause harm to the eyes surface is clean. and skin. Cleaning frequency: clean it every 6 months; the cleaning ● Appliances that are obviously damaged must not be operated. frequency can be properly adjusted according to the degree of ●...

  • Page 40: 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 41: Notes For Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! by yourself. P l e a s e r e a d t h e s a f e t y p r e c a u t i o n s c a r e f u l l y b e f o r e 11.

  • Page 42: Safety Precautions For Installing And Relocating The Unit

    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 If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.

  • Page 43: Safety Operation Of Flammable Refrigerant

    Service Manual Safety Precautions for Refrigerant R32: 675 ● To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant This marking indicates that this product should not be is flammable and inodorous.

  • Page 44: Maintenance Notes

    Service Manual Table a - Minimum room area ( m a. Shut down the unit and cut power supply Charge b. Eliminate the refrigerant Floor Window Wall Ceiling amount location mounted mounted mounted (kg) c. Vacuuming ≤1.2 d. Clean it with N 14.5 16.8 e.
  • Page 45 Service Manual corrected; If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire — refrigerating pipe or components are installed in a extinguishing equipment shall be available to hand. Have a position where they are unlikely to be exposed to any dry powder or CO fire extinguisher adjacent to the charging substance which may corrode refrigerant containing...
  • Page 46 Service Manual position where they are unlikely to be exposed to any Do not apply any permanent inductive or capacitance loads substance which may corrode refrigerant containing to the circuit without ensuring that this will not exceed the components, unless the components are constructed of permissible voltage and current permitted for the equipment materials which are inherently resistant to being corroded in use.
  • Page 47 Service Manual process. system. ● Removal and evacuation Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak- When breaking into the refrigerant circuit to make repairs tested on completion of charging but prior to commissioning. —...
  • Page 48 Service Manual ● Labelling shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good Equipment shall be labelled stating that it has been de- condition. Before using the recovery machine, check that it is commissioned and emptied of refrigerant.

  • Page 49: Main Tools For Installation And Maintenance

    Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender...

  • Page 50: Installation

    8. Installation Service Manual 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 51: Installation Procedures

    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 52: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking (6) The appliance must be installed 2.5m above floor. (7) Don't install the indoor unit right above the electric appliance. Name Name (8) Please try your best to keep way from fluorescent lamp. Indoor unit Sealing gum 3.

  • Page 53: Installation Of Indoor Unit

    Service Manual (4) The appliance must be positioned so that the plug is accessible. the selected outlet pipe position. In order to drain smoothly, slant the piping hole on the wall slightly downward to the outdoor side (5) An all-pole disconnection switch having a contact separation of with the gradient of 5-10°.
  • Page 54 Service Manual ● For the air conditioner with plug, the plug should be reachable after finishing installation. ● For the air conditioner without plug, an air switch must be installed in the line. The air switch should be all-pole parting and Insulating pipe the contact parting distance should be more than 3mm.

  • Page 55: Installation Of Outdoor Unit

    Service Manual to the actual installation situation) (3) Bind them evenly. (4) The liquid pipe and gas pipe should be bound separately at the (1) Select installation location according to the house structure. end. (2) Fix the support of outdoor unit on the selected location with expansion screws.

  • Page 56: Vacuum Pumping And Leak Detection

    Service Manual NOTE: NOTICE: ● When there're multiple cables passing through ● After tightening the screw, pull the power cord slightly to check cross-hole it, the cross-hole of handle should be knocked off if it is firm. and eliminate the sharp burrs for avoid damaging ●...

  • Page 57: Leakage Detection

    Service Manual (2) Connect the charging hose of piezometer to the refrigerant Items to be checked Possible malfunction charging vent of gas valve and then connect the other charging Has the unit been installed The unit may drop, shake or hose to the vacuum pump.

  • Page 58: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3.
  • Page 59 Service Manual Error Malfunction name AC status Possible causes code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 60 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser tem- fan stop operation, while indoor 2. Temperature sensor wire of outdoor unit is damaged; short perature sensor is open/ fan operates;...
  • Page 61 Service Manual Error Malfunction name AC status Possible causes code 1. Outdoor ambient temperature exceeds the operation range Cool: compressor and outdoor of unit (e.g.: less than 20°C or more than 60°C for cooling; more fan stops operation, while indoor than 30°C for heating);...
  • Page 62 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor stops opera- DC bus voltage drop mal- tion, while indoor fan operates; The power voltage is unstable. function Heat: all loads stops operation. Cool: compressor and outdoor fan stops operation, while indoor 1.

  • Page 63: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap.

  • Page 64: Communication Malfunction

    Service Manual 2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before...

  • Page 65: Ipm Protection

    Service Manual 3. IPM protection , over-phase current of compressor Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min...
  • Page 66 Service Manual 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE: The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 67 Service Manual 5. Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well.
  • Page 68 Service Manual 6. High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection...
  • Page 69 Service Manual 7. Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE: The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate...
  • Page 70 Service Manual 8. Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE: The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is...
  • Page 71 Service Manual 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE: The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 72 Service Manual 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 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...
  • Page 73 Service Manual 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 74 Service Manual 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.

  • Page 75: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor con- After energization, operation indicator isn't bright wait for power recovery.
  • Page 76 Service Manual 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit dia- Connect wires according to wiring diagram to connection gram make sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an uni- Capacity of the ODU fan motor versal meter and find that the capacity is out of the...

  • Page 77: Removal Procedure

    10. Removal Procedure Service Manual 10.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Note: Take one of model for example. Step Procedure Before Disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1.
  • Page 78 Service Manual Step Procedure 3. Remove Panel Panel rotation Display Panel Screws Separate the panel rotation shaft 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 79 Service Manual Step Procedure 6. Remove Left and Right Side Plate Left side plate Screws Right side plate After removing the left and right side plate screws, lift the left and right sides up to remove them. 7. Remove Seal Cover Screws Remove the seal cover after removing the screws on the seal cover.
  • Page 80 Service Manual Step Procedure 9. Remove Connecting Rod Sub-assy Remove connecting rod sub-assy with stepping motor from clasps which are under seal cover. Connecting Rod Sub-assy Stepping motor 10. Remove Front Case Sub-assy Remove the screws fixing front case. Screw Front case sub-assy clasps...
  • Page 81 Service Manual Step Procedure Grounding Indoor tube screw temperature sensor Electric box assy Wiring terminal of motor Main board ① Cut off the wire binder and pull out the indoor tube temperature sensor. ② Screw off one grounding screw. ③ Remove the wiring terminals of motor, cold plasma Wiring terminal of cold plasma generator and stepping motor.
  • Page 82 Service Manual Step Procedure Connecting pipe clamp At the back of the unit, Loosen the clasp of the connecting pipe clamp and then remove the connection pipe clamp. Clasp 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 83 Service Manual Step Procedure 13. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screws cross flow fan motor Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. Installation and Maintenance...

  • Page 84: Removal Procedure Of Outdoor Unit

    Service Manual 10.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. GWH09AVCXB-K6DNA1B/O Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and Valve cover then remove them.
  • Page 85 Service Manual 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 Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 86 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the Motor motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 87 Service Manual 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: Liquid valve Discharge the refrigerant completely befor unsoldering;...
  • Page 88 Service Manual GWH12AVCXD-K6DNA1A/O Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Remove the screws fixing big handle, valve cover and then remove them. big handle valve cover 3. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 89 Service Manual 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 90 Service Manual Step Procedure 7. Remove electric box assy 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.
  • Page 91 Service Manual 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 92 Service Manual Step Procedure Compressor 13. Remove compressor Remove the 3 foot nuts on the compressor and then remove the compressor. Installation and Maintenance...

  • Page 93: Before Disassembly

    Service Manual GWH18AVDXE-K6DNA1A/O Caution: discharge the refrigerant completely before removal. NOTE: The front grill appearance is for reference only. Step Procedure 1. Before disassembly 2. Remove valve cover valve cover Remove the connection screw and then remove the valve cover. 3.

  • Page 94: Remove Top Cover

    Service Manual Step Procedure 4. 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. 5. Remove grille Remove connection screws between the front grille and the front panel.
  • Page 95 Service Manual Step Procedure 7. Remove right side plate right side plate Remove connection screws connecting the right side plate with the valve support and the electric box. Then remove the right side plate. 8. Remove the nut and gasket on the blade and then remove the axial flow blade gasket Remove the nut and gasket on the blade and then...
  • Page 96 Service Manual Step Procedure 10. Remove Electric Box Assy Electric Box Assy Remove screws fixing the electric box subassembly; loosen the wire bundle and unplug the wiring terminals. Then lift the electric box to remove it. 11. Remove isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet.
  • Page 97 Service Manual Step Procedure 13. Remove valve suppprt Remove the screws fixing valve support, then remove the valve support. valve support 14. 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...
  • Page 98 Service Manual Step Procedure 16. Remove left side plate Remove the screws fixing the left side plate and then remove the left side plate. left side plate 17. Remove condenser sub-assy Remove the screws fixing the Remove condenser sub- assy and then remove the Remove condenser sub- assy.
  • Page 99 Service Manual GWH24AVEXF-K6DNA1A/O Caution: discharge the refrigerant 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 100 Service Manual 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 Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 101 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the motor support to remove it. Motor Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 102 Service Manual 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: Liquid valve Discharge the refrigerant completely befor unsoldering;...

  • Page 103: Appendix

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

  • Page 104: Appendix 3: Pipe Expanding Method

    Service Manual 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 105: 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 Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 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...
  • Page 106 JF00305350 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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