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Troubleshooting
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Summary of Contents for Gree GWC12ATCXB-K6DNA1B
- Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
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Page 2: Table Of Contents
6. Function and Control ..........21 6.1 Remote Controller Introduction ...............21 6.2 Brief Description of Models and Functions ..........26 6.3 GREE+ App Operation Manual ................29 6.4 Ewpe Smart App Operation Manual ..............30 Part II : Installation and Maintenance ....31 7. - Page 3 Service Manual 8.5 Installation of Indoor Unit ..................42 8.6 Installation of Outdoor Unit ................44 8.7 Vacuum Pumping and Leak Detection ............45 8.8 Check after Installation and Test Operation ..........46 9. Maintenance ..............47 9.1 Error Code List ......................47 9.2 Procedure of Troubleshooting ................52 9.3 Troubleshooting for Normal Malfunction ............64...
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Page 4: Part I : Technical Information
Indoor model Outdoor model code product code 1 GWC12ATCXB-K6DNA1B CB574013100 GWC12ATCXB-K6DNA1B/I CB574N13100 GWC12ATCXB-K6DNA1B/O CB574W13100 2 GWH12ATCXB-K6DNA1B CB574013200 GWH12ATCXB-K6DNA1B/I CB574N13200 GWH12ATCXB-K6DNA1B/O CB574W13200 3 GWC24ATEXF-K6DNA1E CB574014500 GWC24ATEXF-K6DNA1E/I CB574N14500 GWC24ATEXF-K6DNA1E/O CB574W14500 4 GWH24ATEXF-K6DNA1E CB574014400 GWH24ATEXF-K6DNA1E/I CB574N14400 GWH24ATEXF-K6DNA1E/O CB574W14400 5 GWC28ATEXF-K6DNA1A CB574013400 GWC28ATEXF-K6DNA1A/I CB574N13400 GWC28ATEXF-K6DNA1A/O CB574W13400... -
Page 5: Specifications
2. Specifications Service Manual 2.1 Specification Sheet Model GWC12ATCXB-K6DNA1B GWH12ATCXB-K6DNA1B Product Code CB574013100 CB574013200 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 3517 3517 Heating Capacity 3800 Cooling Power Input Heating Power Input... - Page 6 Service Manual Outdoor Unit Model GWC12ATCXB-K6DNA1B/O GWH12ATCXB-K6DNA1B/O Outdoor Unit Product Code CB574W13100 CB574W13200 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD COMPRESSOR CO., LTD Compressor Model FTz-AN108ACBD FTz-AN108ACBD Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
- Page 7 Service Manual Model GWC24ATEXF-K6DNA1E GWH24ATEXF-K6DNA1E Product Code CB574014500 CB574014400 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 7100 7100 Heating Capacity 7800 Cooling Power Input 1920 1920 Heating Power Input 2000 Cooling Current Input Heating Current Input Rated Input 2800...
- Page 8 Service Manual Outdoor Unit Model GWC24ATEXF-K6DNA1E/O GWH24ATEXF-K6DNA1E/O Outdoor Unit Product Code CB574W14500 CB574W14400 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXFS-M180zX170 QXFS-M180zX170 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
- Page 9 Service Manual Model GWC28ATEXF-K6DNA1A GWH28ATEXF-K6DNA1A Product Code CB574013400 CB574013300 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 8200 8200 Heating Capacity 9000 Cooling Power Input 2485 2485 Heating Power Input 2650 Cooling Current Input Heating Current Input 11.7 Rated Input...
- Page 10 Service Manual Outdoor Unit Model GWC28ATEXF-K6DNA1A/O GWH28ATEXF-K6DNA1A/O Outdoor Unit Product Code CB574W13400 CB574W13300 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXFS-B238zX070 QXFS-B238zX070 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
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Page 11: Capacity Variation Ratio According To Temperature
Indoor air flow: High Indoor air flow:Super High Pipe length:5m Pipe length:5m Service Manual -15 -10 -5 0 10 15 20 25 30 35 40 45 52 2.2 Capacity Variation Ratio According to Temperature Outdoor temp. (°C) Outdoor temp.(°C) Cooling Heating Condition Indoor:DB27°C WB19°C... -
Page 12: Outline Dimension Diagram
3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit (6 17/64) (7 3/4) Unit:mm(inch) (9 29/64) (8 7/64) Unit:mm Model 1078 258.5 561.5 (6 13/16) (5 7/16) ATA/ATB Technical Information... -
Page 13: Outdoor Unit
Service Manual 3.2 Outdoor Unit GWC12ATCXB-K6DNA1B/O Unit:mm GWH12ATCXB-K6DNA1B/O Unit:mm Technical Information... - Page 14 Service Manual GWC24ATEXF-K6DNA1E/O GWH24ATEXF-K6DNA1E/O GWC28ATEXF-K6DNA1A/O GWH28ATEXF-K6DNA1A/O Unit:mm Technical Information...
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Page 15: Refrigerant System Diagram
4. Refrigerant System Diagram Service Manual Cooling model Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Electric Strainer Strainer expand valve COOLING Cooling and heating model Outdoor unit Indoor unit Gas pipe... -
Page 16: Electrical Part
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. ● Indoor Unit GWC12ATCXB-K6DNA1B/I OPTIONAL OPTIONAL TUBE ROOM GATECONTROL TEMP. TEMP. MOTOR WIRED... - Page 17 Service Manual GWH12ATCXB-K6DNA1B/I OPTIONAL TUBE ROOM RECEIVER AND TEMP. TEMP. MOTOR WIRED SENSOR SENSOR DISPLAY BOARD CONTROLLER AP1 DISPLAY θ θ TERMINAL BLOCK COM-MANUAL T-SENSOR DISP DC-MOTOR N(N1) N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP AC-L YEGN YEGN SWING-UD DOOR-C (SWING-UD1) SWING-LR F612-C (DRY-C)
- Page 18 Service Manual GWC28ATEXF-K6DNA1A/I GWH28ATEXF-K6DNA1A/I OPTIONAL TUBE ROOM RECEIVER AND TEMP. TEMP. MOTOR WIRED SENSOR SENSOR DISPLAY BOARD CONTROLLER DISPLAY θ θ TERMINAL BLOCK COM-MANUAL T-SENSOR DISP DC-MOTOR N(N1) N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP AC-L YEGN YEGN SWING-UD HEALTH DOOR-C (SWING-UD1) SWING-LR (UVC)
- Page 19 Service Manual ● Outdoor Unit GWC12ATCXB-K6DNA1B/O GWH12ATCXB-K6DNA1B/O OPTIONAL OPTIONAL OPTIONAL WARNING Bottom 4-WAY OUTTUBE OUTROOM EXHAUST ELECTRONIC Please don't touch any terminal when the Band EXPANSION VALVE TEMP. TEMP. TEMP. machine is running ,stopping or has been VALVE Heater SENSOR SENSOR SENSOR...
- Page 20 Service Manual GWC28ATEXF-K6DNA1A/O COMP. OPTIONAL OVERLOAD COMP PROTECTOR OUTTUBE OUTROOM EXHAUST TEMP. TEMP. TEMP. WARNING SENSOR SENSOR SENSOR YE RD Please don't touch any terminal when the machine is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock ! OVC-COMP T-SENSOR...
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Page 21: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Name Earthing wire terminal Up & down swing terminal 2 Brushless DC Motor terminal Up & down swing terminal 1 Live wire terminal Display board terminal Fuse Temperature sensor tube terminal Neutral wire terminal Door-control terminal (Dry contact) Communication wire terminal... - Page 22 Service Manual Outdoor Unit GWC12ATCXB-K6DNA1B/O GWH12ATCXB-K6DNA1B/O Name Name Outdoor fan Earthing wire Electronic expansion valve Live wire Overload Neutral wire 10 Temperature sensor Communication cable E disk interface 4-way valve 12 Terminal of compressor Electric heating belt of chasssis Technical Information...
- Page 23 Service Manual GWC24ATEXF-K6DNA1E/O GWH24ATEXF-K6DNA1E/O GWC28ATEXF-K6DNA1A/O GWH28ATEXF-K6DNA1A/O Name Name Earthing wire terminal Outdoor fan terminal Live wire terminal Temperature sensor terminal Neutral wire terminal Overload terminal Communication cable terminal 10 Three-phase terminal of compressor 4-way valve terminal Electronic expansion valve terminal Electric heating belt of chassis terminal Technical Information...
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Page 24: Function And Control
6. Function and Control Service Manual 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 25 Service Manual ● Set temperature range from remote controller: 16~30°C(61- NOTE: 86° F ) . F a n s p e e d : a u t o , q u i e t , l o w s p e e d , l o w - m e d i u m ●...
- Page 26 Service Manual ● T-OFF button SLEEP "T-OFF" button can set the time for timer off. After pressing this ● Press this button, can select Sleep 1 ( 1), Sleep 2 ( button, " " icon disappears and the word "OFF" on remote Sleep 3 ( 3) and cancel the Sleep, circulate between these, after controller blinks.
- Page 27 Service Manual this function is started up, " " and "8°C" will be shown on remote controller, and the air conditioner keep the heating status at 8°C. Press this button to achieve the on and off of health and Press "TEMP" and "CLOCK" buttons simultaneously again to exit scavenging functions in operation station.
- Page 28 Service Manual Notice: ● During operation, point the remote control signal ● Maximum power limited under the mode is lower than that of sender at the receiving window on indoor unit. mode. ● The distance between signal sender and receiving window ●...
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Page 29: Brief Description Of Models And Functions
Service Manual 6.2 Brief Description of Models and Functions Indoor Unit to ambient temperature and set temperature. ● (3) Sleep After setting sleep function for a period of time, system will adjust 1.Basic function of system set temperature automatically. (1)Cooling mode (4) Timer function: (1) Under this mode, fan and swing operates at setting status. - Page 30 Service Manual and then turn back to display set temperature. Under this mode, indoor fan operates at set fan speed. 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.
- Page 31 Service Manual Outdoor Unit ⑥ Under the condition that compressor is turned on, when unit ● is changed to heating mode from cooling or drying mode, 4-way 1. Cooling mode: valve will be energized in 2~3mins delay. Working condition and process of cooling mode: Note: Tcompensation is determined by IDU and ODU.
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Page 32: 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 33: Ewpe Smart App Operation Manual
Service Manual 6.4 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... -
Page 34: Part Ii : Installation And Maintenance
7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! 11. For the air conditioner without plug, an air switch must be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than Please read the safety precautions carefully before 3mm. - Page 35 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 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 36 Service Manual Safety Precautions for Refrigerant use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Appliance filled with flammable gas R32. 1) Frequency band(s) in which the radio equipment operates: 2400MHz-2483.5MHz 2) Maximum radio-frequency power transmitted in the Before install and use the appliance, read the owner's...
- Page 37 Service Manual table a - Minimum room area ( m ● Stick the label on the system after filling is finished (or havent finished). ● Dont overfilling. ● After filling is finished, please do the leakage detection before test running; another time of leak detection should be done when its removed.
- Page 38 Service Manual detector prior to and during work, to ensure the technician is the risk of fire or explosion. All possible ignition sources, aware of potentially toxic or flammable atmospheres. Ensure including cigarette smoking, should be kept sufficiently far that the leak detection equipment being used is suitable away from the site of installation, repairing, removing and for use with all applicable refrigerants, i.e.
- Page 39 Service Manual leaks but, in the case of flammable refrigerants, the ● Cylinders shall be kept in an appropriate position according sensitivity may not be adequate, or may need re-calibration. to the instructions. ● Ensure that the refrigerating system is earthed prior to (Detection equipment shall be calibrated in a refrigerant- free area.) Ensure that the detector is not a potential source charging the system with refrigerant.
- Page 40 Service Manual All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
- Page 41 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...
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Page 42: 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 43 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...
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Page 44: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 3. Outdoor Unit: (1) Select a location where the noise and outflow air emitted by Name the outdoor unit will not affect neighborhood. Indoor unit (2) The location should be well ventilated and dry, in which the outdoor unit wont be exposed directly to sunlight or strong wind. -
Page 45: Installation Of Indoor Unit
Service Manual 8.5 Installation of Indoor Unit 4. Outlet Pipe (1) The pipe can be led out in the direction of right, rear right, left 1. Choosing Installation Iocation or rear left.(As show in Fig.3) Recommend the installation location to the client and then confirm (2) When selecting leading out the pipe from left or right, please it with the client. - Page 46 Service Manual 6. Install Drain Hose (1) Connect the drain hose to the outlet pipe of indoor unit.(As N(1) show in Fig.8) Fig.13 (2) Bind the joint with tape.(As show in Fig.9) blue black brown yellow- green Outdoor unit connection Drain hose Outlet pipe Note: The wiring connect is for reference only, please refer to the...
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Page 47: Installation Of Outdoor Unit
Service Manual 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 Drain vent (1) Put the bound pipes in the wall pipe and then make them pass Chassis Drain hose Outdoor drain joint... -
Page 48: Vacuum Pumping And Leak Detection
Service Manual 5. Connect Outdoor Electric Wire 7. Neaten the Pipes (1) Remove the wire clip; connect the power connection wire and (1) The pipes should be placed along the wall, bent reasonably signal control wire (only for cooling and heating unit) to the wiring and hidden possibly. -
Page 49: Check After Installation And Test Operation
Service Manual The gas valve and liquid It may cause insufficient valve of connection pipe are Liquid valve Piezometer cooling (heating) capacity. open completely? Gas valve It may cause insufficient Is the inlet and outlet of Valve cap Refrigerant charging cooling(heating) capacity or piping hole been covered? vent... -
Page 50: Maintenance
9. Maintenance Service Manual 9.1 Error Code List Error Malfunction name AC status Possible causes code Malfunction of jumper cap The complete unit stops operation 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; 3. - Page 51 Service Manual Error Malfunction name AC status Possible causes code Liquid valve temperature 1. Temperature sensor is not well connected or damaged; sensor is ON / short- 2. The wire of temperature sensor is damaged, causing short circuited circuit to copper pipe or outer casing; 3.
- Page 52 Service Manual Error Malfunction name AC status Possible causes code Outdoor condenser Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; temperature sensor is fan stop operation, while indoor fan 2. Temperature sensor wire of outdoor unit is damaged; short open/short-circuited operates;...
- Page 53 Service Manual Error Malfunction name AC status Possible causes code Undefined outdoor unit Cool: compressor and outdoor 1. Outdoor ambient temperature exceeds the operation range error fan stops operation, while indoor of unit (eg: less than-20 C or more than 60 C for cooling;...
- Page 54 Service Manual Error Malfunction name AC status Possible causes code DC bus voltage drop Cool/Dry: compressor stops The power voltage is unstable. malfunction operation, while indoor fan operates; Heat: all loads stops operation. Current detection Cool: compressor and outdoor 1. Is the complete unit lacking of refrigerant? malfunction of unit fan stops operation, while indoor 2.
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Page 55: 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 56 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 57 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 and turn on the unit...
- Page 58 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 59 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 60 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 61 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 terminal OFAN is...
- Page 62 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 Check whether the compressor...
- Page 63 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 64 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 65 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 66 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.
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Page 67: 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 connection After energization, operation indicator isn't bright wait for power recovery. - Page 68 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 Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of...
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Page 69: Exploded View And Parts List
10. Exploded View and Parts List Service Manual 10.1 Indoor Unit The component picture is only for reference; please refer to the actual product. Description Description Description Front Panel Cross Flow Fan Main Board Evaporator Support Supporter(Electric Box) Guide Louver Axile Bush Evaporator Assy Terminal Board... - Page 70 Service Manual The component picture is only for reference; please refer to the actual product. Description Description Description Front Panel Display Board Wall Mounting Frame Air Louver Heat Insulating Hose Filter Sub-Assy Screw Cover Helicoid Tongue Evaporator Assy Plasmacluster Ion Evaporator Support Electric Box Cover Front Case...
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Page 71: Outdoor Unit
Service Manual 10.2 Outdoor Unit GWH12ATCXB-K6DNA1B/O The component is only for rererence;please refer to the actual product Description Description Coping Chassis Sub-assy 4-Way Valve Assy Motor Support Handle (Right) Fan Motor Sponge(Condenser) Axial Flow Fan Temperature Sensor Support Cabinet Condenser Assy Front Grill Electric Expansion Valve Sub-Assy Drainage Joint(ODU) - Page 72 Service Manual GWC12ATCXB-K6DNA1B/O The component is only for rererence;please refer to the actual product NO. Description NO. Description NO. Description Coping 14 Handle 27 Front Grill Supporting Board(Condenser) 15 Silencer 28 Drainage Joint(ODU) Inhalation Tube 16 Cut-off valve 29 Left Side Plate...
- Page 73 Service Manual GWC24ATEXF-K6DNA1E/O 9 10 The component is only for rererence;please refer to the actual product Description Description Description Grill Valve Cover Motor Support Front Panel Handle Motor Axial Flow Fan Terminal Board Top Cover Assy Chassis Sub-assy Inhalation Tube Sub-assy Left Side Plate Compressor and Fittings Discharge Tube Sub-assy...
- Page 74 Service Manual GWH24ATEXF-K6DNA1E/O 9 10 The component is only for rererence;please refer to the actual product Description Description Grill Mounting rack Front Panel Rear Grill Axial Flow Fan Condenser Assy Chassis Sub-assy Clapboard Assy Compressor and Fittings Motor Support Electronic Expansion Valve Motor Right Side Plate Top Cover Assy...
- Page 75 Service Manual GWC28ATEXF-K6DNA1A/O 9 10 The component is only for rererence;please refer to the actual product Description Description Front Grill 4-Way Valve Assy Front Panel Condenser Assy Axial Flow Fan Clapboard Assy Chassis Sub-assy Motor Support Compressor and Fittings Brushless DC Motor Electronic Expansion Valve Top Cover Assy Right Side Plate...
- Page 76 Service Manual GWH28ATEXF-K6DNA1A/O 9 10 The component is only for rererence;please refer to the actual product Description Description Front Grill 4-Way Valve Assy Front Panel Condenser Assy Axial Flow Fan Clapboard Assy Chassis Sub-assy Motor Support Compressor and Fittings Brushless DC Motor Electronic Expansion Valve Top Cover Assy Right Side Plate...
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Page 77: Removal Procedure
11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant 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, pull it forwards and then the filter can be pulled out. - Page 78 Service Manual Step Procedure 3. Remove panel Panel rotation Display Panel Screw Open the front panel; 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 electric box assy Screw Remove the screw fixing electric box assy. 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.
- Page 80 Service Manual Step Procedure 7. Remove evaporator assy Remove 2 screws fixing evaporator assy. Screws Connection pipe clamp At the back of the unit, Loosen the clasp of the connection 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 81 Service Manual Step Procedure 8. 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. 9.
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Page 82: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. NOTE:Take heat pump for example. (The front grill appearance is for reference only) 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. - Page 83 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 84 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 85 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 86 Service Manual 24/28K NOTE:Take heat pump for example. Step Procedure 1. Remove grille grille Remove the screws fixing the grille and then remove the panel grille. screws 2. Remove front panel front panel screws Remove screws fixing the front panel and then remove the front panel.
- Page 87 Service Manual Step Procedure 4. Remove electric box assy screws electric box assy Remove the screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric boxupwards to remove it. 5. Remove axial flow blade axial flow blade Remove nut fixing the blade and then remove the...
- Page 88 Service Manual Step Procedure 7. Remove motor support motor support Remove screws fixing the motor support and then remove the motor support. screws 8. Remove cut off valve and valve support sub-assy Remove screws fixing the cut off valve and then remove the cut off valve;...
- Page 89 Service Manual Step Procedure left side plate 10. Remove left side plate Remove the screws fixing the left side plate and the chassis, and then remove the left side plate. screws 11. Remove 4-way valve assy or capillary sub-assy/ electronic expansion valve assy 4-way valve assy Capillary Sub-assy...
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Page 90: 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 display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（℉） temperature（℉） temperature（℉） （℉） （℃） （℉） （℃）... -
Page 91: 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 92: 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 93 JF00305443 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.