Gree GWH15QDXE-K6DNA1A/O Service Manual
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Gree GWH15QDXE-K6DNA1A/O Service Manual

Gree GWH15QDXE-K6DNA1A/O Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GWH15QDXE-K6DNA1A/O

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

  • Page 2: Table Of Contents

    Table of Contents Service Manual Part I : Technical Information ........1 1. Summary ................. 1 ............... 3 ....................3 2.2 Capacity Variation Ratio According to Temperature ........9 2.3 Cooling and Heating Data Sheet in Rated Frequency .......10 ......... 11 3.1 Indoor Unit ........................

  • Page 3: Removal Procedure

    Service Manual 8.4 Electric Connection Requirement ..............44 ..................45 .................47 ............48 ..........49 ..............50 ......................50 ................57 ............75 ......77 10.1 Indoor Unit ......................77 10.2 Outdoor Unit ......................81 11. Removal Procedure ..........87 11.1 Removal Procedure of Indoor Unit ..............87 11.2 Removal Procedure of Outdoor Unit .............92 Appendix .................

  • Page 4: Part I : Technical Information

    1. Summary Service Manual Service Manual Indoor Unit: A1 Panel: C8 Panel: Outdoor Unit: GWH21AGEXF-K6DNA1A/O GWH18QEXF-K6DNC8A/O GWH15QDXE-K6DNA1A/O GWH24AGEXF-K6DNA1A/O GWH28AGEXH-K6DNA1A/O GWH28QEXH-K6DNA1E/O Technical Information Technical Information...

  • Page 5: Remote Controller

    Product code Indoor model Outdoor model code product code Controller: 1 GWH15QDXE-K6DNA1A CB419018500 GWH15QDXE-K6DNA1A/I CB419N18500 GWH15QDXE-K6DNA1A/O CB419W18500 2 GWH15QDXE-K6DNC8B CB456010100 GWH15QDXE-K6DNC8B/I CB456N10100 YAG1FB1 (WiFi) 3 GWH18QEXF-K6DNC8A CB456010000 GWH18QEXF-K6DNC8A/I CB456N10000 GWH18QEXF-K6DNC8A/O CB456W10000 4 GWH18QEXF-K6DNA1A CB419019400 GWH18QEXF-K6DNA1A/I CB419N19400 5 GWH24QEXF-K6DNC8A CB456010400 GWH24QEXF-K6DNC8A/I CB456N10400...
  • Page 6 Service Manual GWH21QEXF-K6DNC8A GWH24QEXF-K6DNC8A Model GWH21QEXF-K6DNA1A GWH24QEXF-K6DNA1A CB456010300 CB456010400 Product Code CB419019700 CB419019500 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 6400 7100 Heating Capacity 7400 8000 Cooling Power Input 1542 1844 Heating Power Input 1805 2000...
  • Page 7 Service Manual Outdoor Unit Model GWH21AGEXF-K6DNA1A/O GWH24AGEXF-K6DNA1A/O Outdoor Unit Product Code CB385W14100 CB385W13900 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO.,LTD Compressor Model QXFS-M180zX170 QXFS-M180zX170 Compressor Oil Compressor Type Rotary Rotary Compressor LRA. 24.00 24.00 Compressor RLA 3.50 3.50 Compressor Power Input 1350...
  • Page 8 Service Manual GWH15QDXE-K6DNA1A GWH18QEXF-K6DNC8A Model GWH15QDXE-K6DNC8B GWH18QEXF-K6DNA1A CB419018500 CB456010000 Product Code CB456010100 CB419019400 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 4600 5200 Heating Capacity 4700 5600 Cooling Power Input 1150 1190 Heating Power Input 1200 1220...
  • Page 9 Service Manual Outdoor Unit Model GWH15QDXE-K6DNA1A/O GWH18QEXF-K6DNC8A/O Outdoor Unit Product Code CB419W18500 CB456W10000 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO., LTD CO.,LTD. Compressor Model QXF-M130zF170 FTz-SM151AXBD Compressor Oil RB68GX or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
  • Page 10 Service Manual GWH28QEXH-K6DNC8A GWH28QEXH-K6DNC8E Model GWH28QEXH-K6DNA1A GWH28QEXH-K6DNA1E CB456010200 CB456010500 Product Code CB419019600 CB419019800 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 8500 8500 Heating Capacity 9000 9000 Cooling Power Input 2297 2297 Heating Power Input 2647 2550...
  • Page 11 Service Manual Outdoor Unit Model GWH28AGEXH-K6DNA1A/O GWH28QEXH-K6DNA1E/O Outdoor Unit Product Code CB385W14300 CB419W19800 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO.,LTD Compressor Model QXFS-B238zX070 QXFS-B238zX070 Compressor Oil Compressor Type Rotary Rotary Compressor LRA. 27.00 27.00 Compressor RLA 4.30 4.30 Compressor Power Input 2020...

  • Page 12: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature 21/24K Cooling: Heating: Conditions Conditions 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 Outdoor temp.(°C) Outdoor temp.(°C) 15/18/28K Heating: Cooling Conditions Indoor:DB20°C Indoor air flow:Super High Pipe length:5m...

  • Page 13: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 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...

  • Page 14: Indoor Unit

    Service Manual 3.1 Indoor Unit 18/21/24/28K Φ70 Φ70 Φ55 Φ55 Unit:mm Model 18/21/24/28K 1078 * Recommended distance Technical Information...

  • Page 15: Outdoor Unit

    Service Manual 3.2 Outdoor Unit 18/21/24K Unit:mm Unit:mm Technical Information...
  • Page 16 Service Manual 1000 Unit:mm Technical Information...
  • Page 17 Service Manual Cooling and heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Strainer expand valve COOLING HEATING Liquid pipe:1/4" Gas pipe:1/2"...

  • Page 18: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram 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. 15/21/24/28K 60000700030911 Technical Information...
  • Page 19 Service Manual 60000700030904 Technical Information...
  • Page 20 Service Manual Outdoor Unit 600007065952 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...

  • Page 21: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Name Connect earthing wire(only for the mode Neutral wire with this function) Needle stand for indoor fan Fuse Auto button 12 Live wire interface Up&down swing motor 13 Interface of health function neutral wire Interface of health function live left&right swing motor wire...
  • Page 22 Service Manual Outdoor Unit Name Name Earthing wire Interface of outdoor fan Live wire Temperature sensor Communication cable Overload interface of compressor Neutral wire Dred communication 4-way valve E disk interface Electric heating belt of chassis Interface of compressor 7 Interface of electronic expansion valve Technical Information...
  • Page 23 Service Manual 18/21/24K Name Name Eathing wire Overload Live wire 10 Terminal of compressor Neutral wire Program debugging interface Communication cable 12 DRED interface 4-way valve 13 Electronic expansion valve interface Electric heating belt of chassis / 2-way valve 14 E disk interface DC fan 15 Monitor interface Temperature sensor...
  • Page 24 Service Manual Name Name Neutral wire Terminal of high pressure protection Grounding wire Temperature sensor Live wire 10 Overload interface of compressor Communication wire Terminal of electronic expansion valve 4-way valve 12 Terminal of DRED Electric heating belt of chassis 13 E disk(Reserved) Outdoor fan 14 Terminal of compressor wire...

  • Page 25: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction for YAG1FB1(WiFi) NOTE: the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the re mote controller, the unit will keep the original running status. a sound.
  • Page 26 Service Manual Press this button, the clock can be set up, signal blink and Press this button, Auto, Cool, Dry, Fan, Heat mode can be display. Within 5 seconds, the value can be adjusted by pressing + selected circularly. Auto mode is default while power on. Under or - button, if continuously press this button for 2 seconds above, Heat mode, the initial value is 28°C(82°F ) Under other modes, in every 0.5 seconds, the value on ten place of minute will be...
  • Page 27 Service Manual NOTE: At that time, indoor unit receives " " signal, while it displays Press this button, the quiet status is under the auto quiet mode indoor set temperature. (display " " and "Auto" signal) and quiet mode (display " "...
  • Page 28 Service Manual in every hour, after 2°C decreased, this temperature will be maintained. Press + and - buttons simultaneously to lock or unlock the (4) Under the initial presetting temperature 28°C -30°C, after keyboard. If the remote controller is locked, the icon will be Sleep function started up, the temperature will decrease 1°C displayed on it, in which case, press any button, the mark will...
  • Page 29 Service Manual 1. Under cooling mode: indoor fan operates at notch 4 speed. indoor fan will operate at notch 2 speed or quiet mode according 1.Press the back side of remote controller marked with " ", as to the comparison between indoor ambient temperature and set temperature.

  • Page 30: Remote Controller Introduction For Yac1Fb4(Wifi)

    Service Manual 6.2 Remote Controller Introduction for YAC1FB4(WiFi) Notice: This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.
  • Page 31 Service Manual be kept immediately. button Under left and right swing mode, when the status is switched This button is used for setting Fan Speed in the sequence that from off to , if press this button again 2s later, status will goes from AUTO, ,then back to Auto.
  • Page 32 Service Manual the setting temperature “88” will display the corresponding "TIMER OFF" button can set the time for timer off. After pressing this button, " "icon disappears and the word "OFF" on remote will display according to the initial curve setting value of original factory);...
  • Page 33 Service Manual according to actual cooling, heating or fan mode. temperature, indoor temperature indicator displays corresponding temperature and automatically turn to display set temperature button Press " WiFi " button to turn on WiFi function,"WiFi " icon will be displayed on the remote controller. Hold "...
  • Page 34 Service Manual will blink three times without sending signal to the unit. to switch temperature display between °C and °F. 1. Press the back side of remote controller marked with " ", as the arrow direction. 2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+"...

  • Page 35: Cooling Mode

    Service Manual Indoor Unit speed and swing function is turned on. Press this auto button at ON status to turn off the unit. (3) Auto fan Heating mode: During auto heating mode or normal heating ode, (1)Cooling mode auto fan speed will adjust the fan speed automatically according (1) Under this mode, fan and swing operates at setting status.
  • Page 36 Service Manual (corresponding remote control code: 01), current set temperature will be displayed. 2. Only when remote control signal is switched to indoor ambient temperature display status (corresponding remote control code: 10) from other display status (corresponding remote control code: 00, 01,11),controller will display indoor ambient temperature for 3s and then turn back to display set temperature.
  • Page 37 Service Manual Outdoor Unit 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.

  • Page 38: Control Flow Chart

    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 39 Service Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version App Download Linkage Scan the QR code or search "Ewpe Smart"...
  • Page 40 Service Manual 3mm. maintenance. conducting wire. WARNINGS and maintenance. welding. 5. Have the unit adequately grounded. The grounding wire any other refrigerant. Never have air remain in the refrigerant 7. The live wire, neutral wire and grounding wire of power and grounding wire of the air conditioner.
  • Page 41 Service Manual WARNINGS Any presence of air or other foreign substance in the refrigerant If compressor starts running when stop valve is open and circuit will cause system pressure rise or compressor rupture, connection pipe is not yet connected, air will be sucked in and resulting in injury.

  • Page 42: Safety Operation Of Flammable Refrigerant

    Service Manual do not play with the appliance. R32: 675 harm to the environment or human health health. WARNING: Safety Operation of Flammable Refrigerant maintenance man authoritative organization and the qualification for dealing operating electric heater.) operating heater). than the minimum room area. following table a.
  • Page 43 Service Manual unload and open the container. the requirement of the nameplate. requirement of the nameplate. the maintenance area. Welding b. Eliminate the refrigerant c. Vacuuming d. Clean it with N e. Cutting or welding Filling the refrigerant with each other. Installation and Maintenance...
  • Page 44 Service Manual aintenance Screw driver Impact drill Drill head Electric drill Electroprobe Inner hexagon Electronic Torque wrench Vacuum pump Pipe cutter Pipe expander Pipe bender Soldering appliance Refrigerant container Installation and Maintenance...
  • Page 45 Service Manual 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 46 Service Manual Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting frame, drill wall holes (select it according to the actual situation) Connect pipes of indoor Fix outdoor unit...

  • Page 47: Electric Connection Requirement

    Service Manual 3. Outdoor Unit: 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. Outdoor unit (3) The location should be able to withstand the weight of outdoor Connection pipe unit.
  • Page 48 Service Manual 4. Outlet Pipe (1) The pipe can be led out in the direction of right, rear right, left or rear left.(As show in Fig.3) (2) When selecting leading out the pipe from left or right, please it with the client. cut off the corresponding hole on the bottom case.(As show in Fig.4) 2.
  • Page 49 Service Manual 6. I Drain H (1) Connect the drain hose to the outlet pipe of indoor unit.(As show in Fig.8) Fig.13 N(1) (2) Bind the joint with tape.(As show in Fig.9) blue black brown yellow- green Drain hose Outdoor unit connection Outlet pipe Note: The wiring connect is for reference only, please refer to the actual one.
  • Page 50 Service Manual Note: (1) The power cord and control wire Can't 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 51 Service Manual 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 The drain hose can't be fluctuant Fig.23) The water outlet The drain can't be placed hose can't...
  • Page 52 Service Manual 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 emit noise. Have you done the cooling (heating) capacity. Is heat insulation of pipeline It may cause condensation and water dripping.
  • Page 53 Service Manual Indoor Unit During cooling and drying Possible reasons: operation, except indoor fan operates, all loads 1. Refrigerant was superabundant; High pressure stop operation. protection of system During heating operation, the complete unit heat exchanger and bad radiating environment ); stops.
  • Page 54 Service Manual Indoor Unit 1. Loosening or bad contact of indoor ambient temp. sensor and mainboard terminal. During cooling and drying operation, indoor Indoor ambient 2. Components in mainboard fell down leads unit operates while other loads will stop; during temperature sensor is short circuit.
  • Page 55 Service Manual Indoor Unit 1. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than During cooling and drying operation, compressor 265VAC, turn on the unit after the supply voltage Voltage for DC bus-bar is will stop while indoor fan will operate;...
  • Page 56 Service Manual Indoor Unit During cooling and drying operation, compressor Charging will stop while indoor fan will operate; Refer to the part three—charging malfunction malfunction of capacitor analysis of capacitor During heating operation, the complete unit will stop During cooling and drying operation, compressor Malfunction of module will stop while indoor fan will operate;...
  • Page 57 Service Manual of Indoor Unit compressor stop operation and Outdoor To protect the electronical components power protection fan motor will stop 30s latter , 3 minutes when detect high power latter fan motor and compressor will restart Indoor unit and compressor and Outdoor fan motor can't outdoor unit doesn't Indoor unit and outdoor unit doesn't match...
  • Page 58 Service Manual of Indoor Unit Refrigerant recovery Refrigerant recovery. The Serviceman mode operates it for maintenance. 1. Outdoor ambient temperature exceeds the operation range of unit (eg: less than- C or more than 60 C for cooling; more Cool: compressor and outdoor fan stops than 30 C for heating);...

  • Page 59: Communication Malfunction

    Service Manual Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has operation; malfunction of compressor; malfunction of protection relay; malfunction of discharge sensor; outdoor temperature too high. Processing method: refer to the malfunction analysis in the above section. Possi ble cause: Sudden drop of supply voltage.
  • Page 60 Service Manual Main detection points: Start Malfunction diagnosis process: Is the wiring terminal between the temperature sensor and the controller Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip- over of the parts Make the parts upright Is malfunction eliminated Is the temperature sensor normal...
  • Page 61 Service Manual Main detection points: Malfunction diagnosis process: Start While power is off stir the blade with a tool to see whether the blade rotates smoothly Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated...
  • Page 62 Service Manual Main detection points: Malfunction diagnosis process: Start Appearance of the jumper cap Assemble the jumper cap with the same model Is malfunction eliminated Is the jumper cap inserted correctly Insert the jumper cap tightly Is malfunction eliminated Replace the jumper cap with the same model Is malfunction eliminated...
  • Page 63 Service Manual Main detection points: Malfunction diagnosis process: Start Turn power off for 1minute,the turn back on The unit returns to normal. U8 is still Conclusion:U8 is displayed due to displayed power off/on while the capacitor discharges slowly. The zero-cross detection circuit abnormal.Replace the mainboard with the same model Installation and Maintenance...

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