Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Gree GWH09UB-K6DNA4A
Summary of Contents for Gree GWH09UB-K6DNA4A
- Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
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Page 2: Table Of Contents
5.2 PCB Printed Diagram .....................16 6. Function and Control ..................20 6.1 Remote Controller Introduction ..................20 6.2 GREE+ App Operation Manual ..................26 6.3 Ewpe Smart App Operation Manual ................27 6.4 Brief Description of Modes and Functions ..............28 Part Ⅱ : Installation and Maintenance ..........35... - Page 3 Service Manual 9. Maintenance ......................46 9.1 Error Code List .......................46 9.2 Procedure of Troubleshooting ..................52 9.3 Troubleshooting for Normal Malfunction .................66 10. Exploded View and Parts List ..............68 10.1 Indoor Unit ........................68 10.2 Outdoor Unit .........................72 11. Removal Procedure ..................76 11.1 Removal Procedure of Indoor Unit ................76 11.2 Removal Procedure of Outdoor Unit ................85 Appendix:...
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Page 4: Part Ⅰ : Technical Information
Remote Controller: SAA1FB1 Models List: Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller GWH09UB-K6DNA4A CB264002100 GWH09UB-K6DNA4A/I CB264N02100 GWH09UB-K6DNA4A/O CB264W02100 GWH12UB-K6DNA4A CB264002200 GWH12UB-K6DNA4A/I CB264N02200 GWH12UB-K6DNA4A/O CB264W02200 SAA1FB1 GWH18UC-K6DNA4A CB264002000 GWH18UC-K6DNA4A/I CB264N02000 GWH18UC-K6DNA4A/O CB264W02000 Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet Parameter Unit Value Model GWH09UB-K6DNA4A GWH12UB-K6DNA4A Product Code CB264002100 CB264002200 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 2700 3530 Heating Capacity 3200 4000 Cooling Power Input... - Page 6 Service Manual Model GWH09UB-K6DNA4A/O GWH12UB-K6DNA4A/O Product Code CB264W02100 CB264W02200 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD CO., LTD Compressor Model QXFT-B123zE170B QXFT-B123zE170B Compressor Oil FW68DA FW68DA Compressor Type Rotary Rotary L.R.A. Compressor RLA Compressor Power Input 1230...
- Page 7 Service Manual Parameter Unit Value Model GWH18UC-K6DNA4A Product Code CB264002000 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5300 Cooling Power Input 1450 Heating Power Input 1430 Cooling Power Current Heating Power Current Rated Input 2500 Rated Current...
- Page 8 Service Manual Model GWH18UC-K6DNA4A/O Product Code CB264W02000 ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD Compressor Model QXFT-B123zE170B Compressor Oil FW68DA or equivalent Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input 1230 Overload Protector HPC115/95orKSD115°C Throttling Method Electron expansion valve Operation temp °C 16~30...
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Page 9: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve 09/12K Cooling Cooling Heating Heating Condition Condition Indoor:DB 20°C Indoor:DB 27°C WB19°C Indoor air flow:Turbo Indoor air flow: Turbo Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) n i l Cooling Heating Cooling Heating Conditions... -
Page 10: Capacity Variation Ratio According To Temperature
Service Manual 2.3 Capacity Variation Ratio According to Temperature 09/12K Cooling Heating Cooling Heating Conditions Conditions Indoor:DB20°C Indoor:DB27°C/WB19°C Indoor air flow:Super High Indoor air flow:Super High Pipe length: 5m Pipe length: 5m 48 50 52 32 34 36 38 40 42 44 46 Outdoor temp.(°C) Outdoor temp.(°C) Cooling... -
Page 11: Cooling And Heating Data Sheet In Rated Frequency
Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor temperature of heat Fan speed of Fan speed of condition(°C) (DB/WB) Model revolution and outdoor unit exchanger indoor unit outdoor unit... -
Page 12: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 09/12K Φ55 Φ55 Φ55 Φ55 Unit:mm 49.5 Model 09/12K Technical Information... -
Page 13: Outdoor Unit
Service Manual 3.2 Outdoor Unit GWH09UB-K6DNA4A/O Unit:mm GWH18UC-K6DNA4A/O Unit:mm Technical Information... - Page 14 Service Manual GWH12UB-K6DNA4A/O Unit:mm Technical Information...
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Page 15: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram 09/12K INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE 4-Way valve Discharge HEAT EXCHANGE (EVAPORATOR) Accumlator Suction COMPRESSOR HEAT EXCHANGE (CONDENSER) Intercooler LIQUID SIDE Electron Electron Strainer Strainer Strainer Strainer 2-WAY VALVE expansion expansion valve valve COOLING... -
Page 16: Electrical Part
Service Manual 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 17 Service Manual 600007063097 63610000222 Technical Information...
- Page 18 Service Manual ● Outdoor Unit GWH09UB-K6DNA4A/O GWH12UB-K6DNA4A/O 60000706165401 GWH18UC-K6DNA4A/O 600007062352 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
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Page 19: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit 09/12K ● Top view Interface of live wire Interface of neutral wire Tube temperature sensor Up&down swing 2 for outdoor unit Interface of jumper Interface of fuse Ambient temperature sensor Up&down swing 1 Communication interface for Interface of live wire Indoor fan motor... - Page 20 Service Manual ● Top view 10 11 Interface of live wire for Interface of left&right Interface of neutral wire Up&down swing 3 outdoor unit swing Interface of communication Health interface wire for neutral wire and live Tube temperature sensor Up&down swing 2 wire Ambient temperature Interface of fuse...
- Page 21 Service Manual Outdoor Unit 09/12K Top view 8 9 10 4 5 6 Name Terminal of compressor Overload Terminal of compressor Terminal of temperature sensor Terminal of electronic expansion valve 1 Terminal of electronic expansion valve 2 Low-temperature cooling sensor Terminal of outdoor fan Terminal of chassis electric heater...
- Page 22 Service Manual ● Top view 5 13 Name Electric Expansion Valve Sub-Assy Temperature Sensor Compressor Overload Protector(External) Terminal of outdoor fan 4-way valve terminal Live wire Communication interface Fuse Grounding wire Neutral wire Rectifier Interface of compressor wire Terminal of 2-way valve ●...
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Page 23: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Specialties note Matching instructions This model adopts RF remote control. The remote controller shall be matched with the air conditioner before operation, otherwise the remote control will be invalid. Before operation, please read the instructions in this page carefully and then do the corresponding matching operation. - Page 24 Service Manual Introduction for Icons on Display Screen Set fan speed Operation mode Send signal battery power Auto mode humidity functions WIFI Cool mode INTELLIGENT Temp.display type Healthy mode Dry mode Set temperature Fan mode Heat mode Up & down swing Set time Left &...
- Page 25 Service Manual button Under simple swing mode, press this button can turn on (display " " icon ) or turn off ( not display " " icon) left&right swing function. Under OFF status, press "+" button and " " button simultaneously can switch between simple swing mode and fixed swing mode. During switching time, “...
- Page 26 Service Manual Note: ● Under on and off status, you can set T-OFF or T-ON simultaneously. ● Before setting T-ON or T-OFF, please adjust the clock time. ● After starting up T-ON or T-OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time.
- Page 27 Service Manual 15. LIGHT button Pressing this button to turn off display light on indoor unit. Press this button again to turn on display light. 16. SLEEP button ● Pressing this button can select Sleep 1, Sleep 2,Sleep 3, Sleep 4 or cancel Sleep circularly as below: cancel ●In Sleep 1 and Sleep 2, the air conditioner will run according to a group of presetting temperature curves.
- Page 28 Service Manual About lock Press + and - buttons simultaneously to lock or unlock the keyboard. If the remote controller is locked, the icon will be displayed on it, in which case, press any button, the mark will flicker for three times. If the keyboard is unlocked, the mark will disappear. About switch between Fahrenheit and Centigrade Under status of unit off, press MODE and - buttons simultaneously to switch °C and °F.
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Page 29: 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 30: Ewpe Smart App Operation Manual
Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for Users smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version... -
Page 31: Brief Description Of Modes And Functions
Service Manual 6.4 Brief Description of Modes and Functions Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Indoor unit 1.This controller includes functions as below (1) Auto; (2) Cooling; (3) Dry; (4) Fan; (5) Heating 2.Control object of controller (1)Indoor unit : Cooling mode: seven kinds of fan speed in total (including quiet, fan 1, fan 2, fan 3, fan 4, fan 5, turbo). - Page 32 Service Manual Display table for error status Error name Error definition Dual-8 code display Freon recovery mode Operation status is displayed immediately Malfunction of indoor fan Malfunction of hardware Malfunction of middle temperature sensor of indoor evaporator Malfunction of hardware Malfunction of indoor ambient temperature sensor Malfunction of hardware Communication malfunction between indoor unit and outdoor unit...
- Page 33 Service Manual 5.Other control (1)Timer function Timer ON: Timer ON can be set under off status. After time is over, the unit will operate at original setting mode. The timer interval is 0.5h and the timer setting range is 05~24h. Timer OFF: Timer OFF can be set under on status.
- Page 34 Service Manual of swing blade, there are upper swing and lower swing. When selecting fixed-angle swing, you can select 5 kinds of swing position for blowing fan; After selecting free swing, lower swing for heating mode and upper swing for cooling mode. Horizontal louver postion diagrammatic sketch Initial stauts after reset is finished Lower swing...
- Page 35 Service Manual (5)Error 5: Dual-8 nixie tube of display board displays “H6”. Solution: The feedback wire of indoor fan has not been firmly connected to the controller or the indoor fan motor fails to work, please reinsert the feedback line of indoor fan or replace the main board of controller, or replace the motor. (6)Error 6: Dul-8 nixie tube of display board displays “FC”.
- Page 36 Service Manual Outdoor unit 1. System function 1.1 Cooling mode 1.1.1 Working condition and process for cooling When the compressor is at off status, turn on the unit under cooling mode. When indoor unit reaches the condition of turning on the unit, the unit operates under cooling mode.Meanwhile, indoor fan, outdoor fan and compressor stops operation.
- Page 37 Service Manual 2.2 Delay protection of compressor When compressor is stopped, it needs 3min to restart up the compressor. Once compressor is started up, compressor wont stop operate within 6in according to the change of temperature. 2.3 Discharge temperature protection of compressor (1)When TBdischarge B≥98°C, prohibit increasing frequency;...
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Page 38: Part Ⅱ : Installation And Maintenance
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. - Page 39 Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. Warnings 1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
- Page 40 Service Manual Safety Operation of Flammable Refrigerant Qualification requirement for installation and maintenance man ●All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry. If it needs other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualification for using the flammable refrigerant.
- Page 41 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
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Page 42: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe 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 8.4 Requirements for electric connection 8.2 Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. (2) According to the local safety regulations, use qualified Outdoor unit Wrapping tape power supply circuit and air switch. - Page 45 Service Manual Left Right (2) Drill the screw fixing holes on the wall with impact drill (the specification of drill head should be the same as the plastic expansion particle) and then fill the plastic expansion particles in the holes. Cut off Fig.4 (3) Fix the wall-mounting frame on the wall with tapping screws...
- Page 46 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord Screw...
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Page 47: Installation Of Outdoor Unit
Service Manual (3) Pretightening the union nut with hand. 8.6 Installation of Outdoor Unit (4) Tighten the union nut with torque wrench . 1. Fix the Support of Outdoor Unit(Select it according to the actual installation situation) Refer to the following table for wrench moment of force: (1) Select installation location according to the house structure. -
Page 48: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet cant be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been... -
Page 49: Maintenance
Service Manual 9. Maintenance 9.1 Error Code List Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying Possible reasons: High operation, except indoor... - Page 50 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator When the outdoor unit receive signal of Gathering refrigerant Gathering ,the system will be forced to Nominal cooling mode...
- Page 51 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Decrease Overload or temperature is too All loads operate normally, frequency high;...
- Page 52 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying...
- Page 53 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate;...
- Page 54 Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate;...
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Page 55: Procedure Of Troubleshooting
Service Manual 9.2 Procedure of Troubleshooting 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 56 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
- Page 57 Service Manual 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? ●...
- Page 58 Service Manual 4. Malfunction of Overcurrent Protection E5 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 Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
- Page 59 Service Manual 5. Communication Malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
- Page 60 Service Manual 6. 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...
- Page 61 Service Manual 7. Malfunction of detecting plate(WIFI) JF 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
- Page 62 Service Manual Outdoor Unit 1. Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: ● Detect if the voltage of L and N terminal of XT wiring board is between 210VAC-240VAC by alternating voltage meter; ●...
- Page 63 Service Manual 2. 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 64 Service Manual 3. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ● If the radiating environment of indoor and outdoor unit is good. E8 is displayed Normal protection, please If the outdoor...
- Page 65 Service Manual 4. Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: ● If the compressor wiring is correct? ● If the stop time of compressor is sufficient? ● If the compressor is damaged? ● If the refrigerant charging amount is too much? Turn on the unit The stop time is not sufficient and If the stop time of compressor...
- Page 66 Service Manual 5. Overload and high discharge temperature malfunction Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
- Page 67 Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be＜1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
- Page 68 Service Manual 6. Communication malfunction (E6) Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: If the unit operates normally before malfunction...
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Page 69: Troubleshooting For Normal Malfunction
Service Manual 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 After energization, operation indicator isnt bright wait for power recovery. - Page 70 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
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Page 71: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit GWH09UB-K6DNA4A/I GWH12UB-K6DNA4A/I The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 72 Service Manual Part Code Description GWH09UB-K6DNA4A/I GWH12UB-K6DNA4A/I Product Code CB264N02100 CB264N02200 Front Panel Sub-Assy 2002264105 2002264105 Stand Bar 10582150P 10582150P Screw Cover 24252028P 24252028P Cover Plate 20122190P 20122190P Left Decorative Board 20192574D03 20192574D03 Left Side Plate 20052027P 20052027P Left Driving Box Sub-assy...
- Page 73 Service Manual GWH18UC-K6DNA4A/I The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 74 Service Manual Part Code Description GWH18UC-K6DNA4A/I Product Code CB264N02000 Guide Louver 10512916 Front Panel 2002240902 Stand Bar 10582150P Left Side Plate 26112361P Left Decorative Board 20192600D Left Driving Box Sub-assy 2011220101 Decorative Strip (Up) 20192602D Cover plate(Air Outlet) 20122193P Filter Sub-Assy 11122155 Cross Flow Fan 10352054...
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Page 75: Outdoor Unit
Service Manual 10.2 Outdoor Unit GWH09UB-K6DNA4A/O GWH12UB-K6DNA4A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 76 Service Manual Part Code Description GWH09UB-K6DNA4A/O GWH12UB-K6DNA4A/O Product Code CB264W02100 CB264W02200 Front Grill 22413050 22413046 Cabinet 01433034 01433034 Brushless DC Motor 1501308519 1501308519 Clapboard Sub-Assy 01235094 01235094 Chassis Sub-assy 017000060317P 017000060383P Compressor and Fittings 00900100022901 00900100022901 Valve Support Sub-Assy 01710400005P...
- Page 77 Service Manual GWH18UC-K6DNA4A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 78 Service Manual Part Code Description GWH18UC-K6DNA4A/O Product Code CB264W02000 Front Grill 22413045 Front Panel 01535013P Radiator 4901521502 Chassis Sub-assy 017000060480P Electrical Heater (Chassis) 7651000411 Compressor and Fittings 00900100022901 4-Way Valve Assy 030152060408 Electronic Expansion Valve assy 00900100022901 Right Side Plate 0130509402P Valve Support Sub-Assy 01705066...
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Page 79: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Steps Procedure 1. Remove filter sub-assy panel Open the panel. Remove clasps on filter. clasp Remove filter sub-assy with hand. filter sub-assy 2. - Page 80 Service Manual Steps Procedure Remove sealing cover and display. sealing cover display Remove hinges at both sides of panel to separate panel and front case and then panel remove the panel. front case 3. Remove horizontal louver and front case Cut off power, hold both ends of horizontal louver with hand, and then draw it out horizontally.
- Page 81 Service Manual Steps Procedure Remove the left end. Hold the end of connection rod with left hand, hold the horizontal louver with right hand to separate connection rod and horizontal louver. Remove the horizontal louver along the axile center direction. Note: (during operation, install the left end and then install the right end.
- Page 82 Service Manual Steps Procedure Turn over the screw cover on front case with hand, and then remove one screw inside the screw cover with screwdriver. screw screw cover wire groove butt terminal Pull out two butt terminals on electric box, and then take out connection wire of butt terminal, connection wire of inspection board and wire of temperature sensor...
- Page 83 Service Manual Steps Procedure 4. Remove electric box temperature sensor Remove three earthing screws with screws, earthing screw pull out the indoor tube temperature sensor with hand and then cut off the tileline with scissors. earthing screw Take out the electric box shielding cover sub- assy.
- Page 84 Service Manual wire groove Remove screws fixing electric box with screwdriver, and then take out the wires screw from the wire groove of electric box with hand. screw Remove screw from press plate of connection pipe with screwdriver. Remove press plate of connection pipe with hand to separate it from the bottom case.
- Page 85 Service Manual Steps Procedure Open the connection pipe of evaporator with hand. connection pipe evaporator Lift up the left end of evaporator with hand, and then take out the evaporator. 6. Remove swing blade Remove crank connection rod. crank connection rod screws Remove 2 screws fixing swing motor cover with screwdriver.
- Page 86 Service Manual Steps Procedure swing motor sub-assy Remove swing motor sub-assy. swing connection rod Take out swing connection rod to separate it from the swing blade. 7. Remove cross flow blade and motor Remove 4 screws fixing the motor press plate with screwdriver.
- Page 87 Service Manual Procedure Steps 8. Remove drive box Remove the left side cover plate of front case. cover plate screws Remove 3 screws fixing the left drive box with screwdriver. right drive box Take out right drive box. Remove 3 screws fixing left drive box with screws screwdriver.
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Page 88: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. GWH09UB-K6DNA4A/O GWH12UB-K6DNA4A/O Steps Procedure 1. Remove top cover... - Page 89 Service Manual Steps Procedure 4. Remove left side plate Remove the screws fixing left side plate and condenser support boa rd, to remove the left side plate. left side plate 5. Remove cross fan blade Remove the screw nut fixing cross fan blade, remove the gasket and spring cushion, to remove the cross fan blade.
- Page 90 Service Manual Steps Procedure 7. Remove electric box assy electric box cove r Remove screws fixing electric box assy and mid-isolation board, loosen the bonding tie, pull off the wiring terminal, lift to remove the electric box assy. electric box assy 8.
- Page 91 Service Manual Steps Procedure flash vaporizer assy 10. Remove flash vaporizer assy Remove the screws connecting mid-isolation board, lift to remove the flash vaporizer assy. 11. Remove four-way valve assy four-way valve assy Welding cut the spot weld of four-way valve assy, compressor air suction/discharging valve and condenser pipe outlet, lift to remove the four-way valve assy.
- Page 92 Service Manual Steps Procedure 13. Remove compressor compressor Remove the three feet screwnuts fixing compressor, to remove the compressor. 14. Remove big and small valve assy Remove screws connecting condenser assy and chassis, to remove the condenser assy. Remove the screws fixing big and small valve, to small valve remove the valves.
- Page 93 Service Manual GWH18UC-K6DNA4A/O Steps Procedure 1. Remove top panel Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. handle valve top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
- Page 94 Service Manual Steps Procedure Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. Remove the 6 screws connecing the left side plate and right side plate and then remove rear grill rear grill panel 3.
- Page 95 Service Manual Steps Procedure 4. Remove fan motor axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. motor support Remove the 4 tappin g screw s fixing the motor; disconnect the leading wire insert of the motor and then remove the moto r.
- Page 96 Service Manual Steps Procedure 6.Remove soundproof sponge Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully soundproof sponge 7. Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet. Isolation sheet 8.
- Page 97 Service Manual Steps Procedure flash vaporizer assy 9. Remove flash vaporizer assy Remove the screws connecting mid-isolation board, lift to remove the flash vaporizer assy 10. Remove compressor Remove the 3 foot nuts fixing the compressor compressor and then remove the compressor. 11.Remove condenser sub-assy condenser sub-assy Remove the chassis sub-assy and condenser...
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Page 98: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius(°C) Celsius(°C) Celsius(°C) temperature (°F) temperature (°F) temperature (°F) (°F) (°F) (°F) -
Page 99: Appendix 3: Pipe Expanding Method
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●... -
Page 100: 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 (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009... - Page 101 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
- Page 102 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
- Page 103 Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK Tel: (852) 31658898 Fax: (852) 31651029 For product improvement, specifications and appearance in this manual are subject to change without prior notice.