Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Gree GWC30QF-D3DNB4G
Summary of Contents for Gree GWC30QF-D3DNB4G
- Page 1 Change for life Service Manual Models: GWC30LB-D3DNB2G GWC30QF-D3DNB4G GWH30LB-D3DNB2G VIRU30HP230V1AH GWH30QF-D3DNB4G GWC36LB-D3DNB2G GWC36QF-D3DNB4G GWH36LB-D3DNB2G GWH36LB-D3DNA5G VIRU36HP230V1AH GWH36QF-D3DNB4G (Refrigerant R410A) ’ GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
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Page 2: Table Of Contents
..................22 6.1 Remote Controller Introduction of YAN1F6F ..............22 6.2 Remote Controller Introduction of YV1FB9F ..............27 6.3 GREE+ App Operation Manual ..................31 6.4 Ewpe Smart App Operation Manual ................32 6.5 Brief Description of Modes and Functions ..............33 Part Ⅱ : Installation and Maintenance ..........36... -
Page 3: Table Of Contents
Service Manual 9. Troubleshooting ....................46 9.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ........46 9.2 How to Check Simply the Main Part ................55 9.3 Troubleshooting for Normal Malfunction .................71 10. Exploded View and Parts List ..............73 10.1 Indoor Unit ........................73 10.2 Outdoor Unit .........................81 11. -
Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: GWC30LB-D3DNB2G/I GWH30LB- D3DNB2G/I GWC36LB-D3DNB2G/I GWH36LB-D3DNB2G/I VIRU30HP230V1AH VIRU36HP230V1AH GWH36LB-D3DNA5G/I GWC30QF-D3DNB4G/I GWH30QF-D3DNB4G/I GWC36QF-D3DNB4G/I GWH36QF-D3DNB4G/I Outdoor Unit: GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO Technical Information... - Page 5 Indoor model Outdoor model code product code Controller 1 GWC30LB-D3DNB2G CB433000102 GWC30LB-D3DNB2G/I CB433N00102 GWC30LB-D3DNA3G/O CB171W10700 2 GWC30QF-D3DNB4G CB434005001 GWC30QF-D3DNB4G/I CB434N05001 3 GWC36LB-D3DNB2G CB433000302 GWC36LB-D3DNB2G/I CB433N00302 YAN1F6F(WiFi) GWC36LB-D3DNA3G/O CB171W10900 4 GWC36QF-D3DNB4G CB434005102 GWC36QF-D3DNB4G/I CB434N05102 5 GWH36LB-D3DNB2G CB433000402 GWH36LB-D3DNB2G/I CB433N00402 VIRU36HP230V1AO CB171W10800...
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Page 6: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet GWC30LB-D3DNB2G GWH30LB-D3DNB2G Model GWC30QF-D3DNB4G GWH30QF-D3DNB4G CB433000102 CB433000202 Product Code CB434005001 CB434004801 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 28000(9485~30026) 28000(9485~30026) Heating Capacity(Min~Max) Btu/h... - Page 7 Service Manual Model of Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO Outdoor Unit Product Code CB171W10700 CB171W10600 ZHUHAI LANDA COMPERSSOR ZHUHAI LANDA COMPERSSOR Compressor Manufacturer/Trademark CO.LTD. CO.LTD. Compressor Model QXAS-D23zX090 QXAS-D23zX090 Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 13.45 13.45...
- Page 8 Service Manual GWH36LB-D3DNB2G GWC36LB-D3DNB2G Model GWH36LB-D3DNA5G GWC36QF-D3DNB4G GWH36QF-D3DNB4G CB433000402 CB433000302 Product Code CB169001002 CB434005102 CB434004901 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 33600(7404~35997) 33600(7404~35997) Heating Capacity(Min~Max) Btu/h 34600(14979~35997) Cooling Power Input(Min~Max) 4100 4100(450~4300) Heating Power Input(Min~Max)
- Page 9 Service Manual Model of Outdoor Unit GWC36LB-D3DNA3G/O(LC) VIRU36HP230V1AO(LCLH) Outdoor Unit Product Code CB171W10900 CB171W10800 MITSUBISHI ELECTRIC MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark (GUANGZHOU)COMPRESSOR (GUANGZHOU)COMPRESSOR CO. LTD CO. LTD Compressor Model TNB306FPGMC TNB306FPGMC Compressor Oil FV50S FV50S Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) 67.00 67.00 Compressor RLA...
- Page 10 Service Manual Model VIRU36HP230V1AH VIRU30HP230V1AH Product Code CB432010100 CB432010000 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 33000(30700~40900) 28000(5500~30700) Heating Capacity(Min~Max) Btu/h 34600(16700~49400) 28700(4300~35200) Cooling Power Input(Min~Max) 3220(500~4100) 2500(420~3650) Heating Power Input(Min~Max) 3100(1000~7000) 2700(520~5800) Cooling Power Current...
- Page 11 Service Manual Model of Outdoor Unit VIRU36HP230V1AO VIRU30HP230V1AO Outdoor Unit Product Code CB432W10100 CB432W10000 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD CO., LTD Compressor Model QXAW-F518zX440C QXFW-D318ZX035 Compressor Oil FV50S or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A)
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Page 12: Capacity Variation Ratio According To Temperature
Service Manual 2.2 Capacity Variation Ratio According to Temperature Heating operation ambient temperature range is -4ºF~75ºF Cooling Heating Conditions Conditions Indoor: DB 80°F WB66 °F Indoor:DB 70°F Indoor air flow: Super High Indoor air flow:Super High Pipe length : 24.6ft Pipe length: 24.6ft Outdoor temp. -
Page 13: Noise Curve
Service Manual 2.3 Noise Curve Indoor side noise Outdoor side noise Compressor frequency(Hz) Indoor fan motor rating speed 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor and temperature of heat Fan speed of Fan speed of... -
Page 14: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 53 9/64 13 25/32 29 3/8 Φ2 3/4 Φ2 3/4 Unit:inch 11 19/32 3 1/2 3.2 Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO 36 2/9 14 37/64 39 1/2 16 13/16 Unit:inch Technical Information... - Page 15 Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 14 1/6 43 37/64 24 5/6 Unit:inch Technical Information...
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Page 16: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram 30K except :VIRU30HP230V1AH Cooling only model Indoor unit Outdoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Electron Capillary Strainer expansion valve COOLING Cooling and heating model... - Page 17 Service Manual 36K except VIRU36HP230V1AH : Cooling only model Indoor unit Outdoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Electron Strainer expansion valve COOLING Cooling and heating model Indoor unit Outdoor unit Gas pipe...
- Page 18 Service Manual VIRU36HP230V1AH VIRU30HP230V1AH Electronic expansion Outdoor evaporator valve A Unloading valve 4-way valve Solenoid valve (high pressure) Solenoid valve (low pressure) Gas-liquid Flash vaporizer separator Gas-liquid separator Variable Air injection volume Compressor Electronic expansion valve B Indoor evaporator COOLING HEATING Connection pipe specification: Liquid pipe:1/4 inch...
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Page 19: 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 20 Service Manual ● Outdoor Unit GWC30LB-D3DNA3G/O GWC36LB-D3DNA3G/O 63610000470 VIRU30HP230V1AO VIRU36HP230V1AO 6361000047001 Technical Information...
- Page 21 Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 600007001457 The above data is subject to change without notice. Please refer to the nameplate of the unit. Technical Information...
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Page 22: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit Top View Grounding wire DC motor needle stand Communication terminal for outdoor unit Interface of health function(only for the mode with this function) Interface of neutral wire Fuse Interface of live wire Needle stand for jumper cap Auto button up&down swing interface... - Page 23 Service Manual Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO ● Top view Name Name Name 1 High-frequency transformer T1 6 High pressure protection terminal HPP1 11 Terminal of neutral wire Overload protection terminal of 7 Terminal of 4-way valve 12 Protective tube FU101 compressor OVC-COMP 3 Terminal of temp sensor CN2 8 Electric heater band of chassis HEAT2-L...
- Page 24 Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 17 16 15 14 13 12 11 Name Name Name 1 Neutral wire 8 Interface B of electric heating 15 Terminal for high pressure protection 2 Grounding wire 9 Terminal of low pressure valve 16 Interface 2 of temperature sensor 3 Live wire 10 Terminal of 2-way valve 17 Interface of temperature sensor...
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Page 25: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction of YAN1F6F ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button WIFI button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel... - Page 26 Service Manual ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. MODE button Press this button to select your required operation mode. AUTO COOL HEAT When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can’t be adjusted and will not be displayed as well.
- Page 27 Service Manual 6. ▲/ button Press "▲" or " " button once increase or decrease set temperature 1 (1°F) . Holding "▲" or " " button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indica- tor on indoor unit will change accordingly.
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Page 28: Function Introduction For Combination Buttons
Service Manual Note: Under on and off status, you can set TIMER OFF or TIMER ON simultaneously. Before setting TIMER ON or TIMER OFF, please adjust the clock time. After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time. -
Page 29: Replacement Of Batteries In Remote Controller
Service Manual Replacement of batteries in remote controller signal sender battery Press the back side of remote controller marked with " out the cover of battery box along the arrow direction. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar reinstall are correct. -
Page 30: Remote Controller Introduction Of Yv1Fb9F
Service Manual 6.2 Remote Controller Introduction of YV1FB9F ON/OFF button ▲ button MODE button SWING button button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button I FEEL button button Introduction for icons on display screen Set fan speed I feel Send signal... - Page 31 Service Manual HEAT AUTO COOL This button is used for setting Fan Speed in the sequence that goes from AUTO, , to , then back to Auto. Auto Note: Low speed Medium speed High speed Under AUTO speed, air conditioner will select proper fan speed automatically according to ex-factory setting. It’s Low fan speed under Dry mode.
- Page 32 Service Manual WiFi button WiFi Press " " button to turn on or turn off WiFi function. When WiFi function is turned on, the " WiFi " icon will be displayed WiFi on remote controller; Under status of unit off, press "MODE" and " "...
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Page 33: I Feel Function
Service Manual I FEEL Function Press "▲" and "MODE" buttons simultaneously to start I FEEL function and " " will be displayed on the remote controller. After this function is set, the remote controller will send the detected ambient temperature to the controller and the unit will automatically adjust the indoor tempe rature according to the detected temperature. -
Page 34: 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 35: Ewpe Smart App Operation Manual
Service Manual 6.4 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 User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version... -
Page 36: Brief Description Of Modes And Functions
Service Manual 6.5 Brief Description of Modes and Functions 1. Temperature Parameters Indoor preset temperature(Tpreset) Indoor ambient temperature (Tamb.) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory functionis available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started withouta 3-minute lag;... - Page 37 Service Manual When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, andone of the following conditions is reached, the unit will enter the defrost mode after 3 minutes. a. Toutdoor amb. ≥ 41°F, Toutdoor pipe ≤ 28.4°F; b.
- Page 38 Service Manual c. If Ttube ≥ 136°F, the compressor will run at reduced frequency. d. If Ttube ≥ 144°F, the compressor will stop and the indoor fan will run at preset speed. 2) Heating overload a. If Ttube ≤ 126°F, the unit will return to its original operation state. b.
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Page 39: 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 40 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 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 Space to the wall At least 5 7/8 inch At least 5 7/8 inch Drainage pipe Installation and Maintenance... -
Page 43: 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 44: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 8.4 Requirements for electric connection 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch. - Page 45 Service Manual in the holes. torque wrench.(As show in Fig.6) (3) Fix the wall-mounting frame on the wall with tapping screws (4) Wrap the indoor pipe and joint of connection pipe with (ST4.2X25TA) and then check if the frame is firmly installed by insulating pipe, and then wrap it with tape.(As show in Fig.7) pulling the frame.
- Page 46 Service Manual (2) Fix the wire crossing board on connection wire sleeve at 8. Bind up Pipe the bottom case; let the connection wire sleeve go through the (1) Bind up the connection pipe, power cord and drain hose wire crossing hole at the back of indoor unit, and then pull it out with the band.(As show in Fig.14) from the front.(As show in Fig.12) (2) Reserve a certain length of drain hose and power cord...
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Page 47: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Hex nut diameter(inch) Tightening torque(ft·Ibf) Φ1/4 11.10~14.75 1. Fix the Support of Outdoor Unit(Select it according to Φ3/8 20.12~29.50 the actual installation situation) Φ1/2 33.19~40.56 (1) Select installation location according to the house structure. Φ5/8 44.24~47.94 (2) Fix the support of outdoor unit on the selected location with... -
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: Troubleshooting
Service Manual 9. Troubleshooting 9.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement 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... - 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 OFF 3S signal of Gathering refrigerant Gathering and blink ,the system will be forced to...
- 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 (during (during Compressor blinking, blinking, intermediate Showing during middle cooling or 0.25s 0.25s frequence in...
- 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 OFF 3S 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 OFF 3S operation, compressor will stop detection and blink...
- Page 55 Service Manual Display Method of Indoor Unit Indicator Display (during blinking, ON 0.5s and OFF Dual-8 Malfunction A/C status Possible Causes 0.5s) Code Name Operation Cool Heating Display Indicator Indicator Indicator Normal communica- tion OFF 3S Defrosting will occur in and blink heating once...
- Page 56 Service Manual Installation and Maintenance...
- Page 57 Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible reasons: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser;the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...
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Page 58: How To Check Simply The Main Part
Service Manual 9.2 How to Check Simply the Main Part Indoor unit 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●... - Page 59 Service Manual 2.Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly. Turn unit on to check whether the malfunction is...
- Page 60 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 61 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 62 Service Manual 5. 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 63 Service Manual 6.Malfunction of communication 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: Start...
- Page 64 Service Manual 7. 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 65 Service Manual Outdoor unit (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged? Fault diagnosis process: Turn on the unit...
- Page 66 Service Manual 5. 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 67 Service Manual (3)High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? Fault diagnosis process: Overheat and high temperature protection...
- Page 68 Service Manual (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: Whether the compressor wiring is connected correct? Is compressor broken? Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
- Page 69 Service Manual (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Whether the system pressure is too high? Whether the input voltage is too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation...
- Page 70 Service Manual (6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: Wether the PMV is connected well or not? Is PMV damaged? Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
- Page 71 Service Manual (7) High-pressure Protection High-pressure protection Use pressure gauge to Measure if the pressure switch Replace the mainboard of measure if the pressure is is normal outdoor unit really high? Check if the operation mode of Set the correct operation Replace the pressure switch indoor unit is set properly? mode...
- Page 72 Service Manual (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
- Page 73 Service Manual (9) Communication malfunction:(following AP1 for outdoor unit control board) Mainly detect: Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, If is there any damage? Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? The flow chart fir malfunction detect: Start Did the equipment operate...
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Page 74: 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 75 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 76: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit For some models: WIFI MODE ON/OFF SWING TIMER ON CLOCK TIMER OFF TURBO TEMP SLEEP X-FAN IFEEL The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 77 Service Manual Part Code Description GWC30LB-D3DNB2G/I GWH30LB-D3DNB2G/I Product Code CB433N00102 CB433N00202 Receiver Window Front Panel 20000300022S 20000300022S Stand bar 2421212001 2421212001 Filter Sub-Assy 11122106 11122106 Front Case Sub-Assy 20900700005 20900700005 Upper Guide Louver 1051216601 1051216601 Lower guide louver 1051216701 1051216701 Axile Bush 10542704 10542704...
- Page 78 Service Manual Part Code Description GWC36LB-D3DNB2G/I GWH36LB-D3DNB2G/I Product Code CB433N00302 CB433N00402 Receiver Window Front Panel 20000300022S 20000300022S Stand bar 2421212001 2421212001 Filter Sub-Assy 11122106 11122106 Front Case Sub-Assy 20900700005 20900700005 Upper Guide Louver 1051216601 1051216601 Lower guide louver 1051216701 1051216701 Axile Bush 10542704 10542704...
- Page 79 Service Manual Part Code Description GWH36LB-D3DNA5G/I GWH36QF-D3DNB4G/I Product Code CB169N01002 CB434N04901 Receiver Window Front Panel 20012661 CB434N04901 Stand bar 24212120 24212120 Filter Sub-Assy 11122106 11122106 Front Case Sub-Assy 20022159 20900700005 Upper Guide Louver 10512166 1051216601 Lower guide louver 10512167 1051216701 Axile Bush 10542704 10542704...
- Page 80 Service Manual Part Code Description GWC30QF-D3DNB4G/I GWC36QF-D3DNB4G/I Product Code CB434N05001 CB434N05102 Receiver Window Front Panel 200003000035 200003000035 Stand bar 2421212001 2421212001 Filter Sub-Assy 1112210602 1112210602 Front Case Sub-Assy 20900700005 20900700005 Upper Guide Louver 1051216601 1051216601 Lower guide louver 1051216701 1051216701...
- Page 81 Service Manual Part Code Description GWH30QF-D3DNB4G/I Product Code CB434N04801 Receiver Window Front Panel 200003000035T Stand bar 2421212001 Filter Sub-Assy 11122106 Front Case Sub-Assy 20900700005 Upper Guide Louver 1051216601 Lower guide louver 1051216701 Axile Bush 10542704 Air Louver 2 1051216902 Air Louver 1 1051216802 Connecting Rod 10582086...
- Page 82 Service Manual VIRU36HP230V1AH VIRU30HP230V1AH The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 83 Service Manual Part Code Description VIRU36HP230V1AH VIRU30HP230V1AH Product Code CB432N10100 CB432N10000 Front Panel 20000300022S 20000300022S Stand Bar 2421212001 2421212001 Filter Sub-Assy 1112210601 1112210602 Front Case Sub-assy 20900700005 20900700005 Upper Guide Louver 1051216601 1051216601 Lower Guide Louver 1051216701 1051216701 Axile Bush 10542704 10542704 Air Louver 2...
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Page 84: Outdoor Unit
Service Manual 10.2 Outdoor Unit GWC30LB-D3DNA3G/O GWC36LB-D3DNA3G/O 10 11 12 The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 85 Service Manual Product Code Description GWC30LB-D3DNA3G/O GWC36LB-D3DNA3G/O Product Code CB171W10700 CB171W10900 Front Grill 01473050 01473050 Cabinet 0143500401P 0143500401P Front Side Plate 01303249P 01303249P Axial Flow Fan 10335014 10335014 Chassis Sub-assy 0280310101P 0280302601P Compressor Gasket 76715022 76710207 Compressor and Fittings 00105051 00205275 Discharge Tube Sub-assy 03001300238...
- Page 86 Service Manual VIRU30HP230V1AO VIRU36HP230V1AO 11 12 13 14 15 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 87 Service Manual Part Code Description VIRU30HP230V1AO VIRU36HP230V1AO Product Code CB171W10600 CB171W10800 Front Grill 01473050 01473050 Cabinet 0143500401P 0143500401P Front Side Plate 01303249P 01303249P Axial Flow Fan 10335014 10335014 Drainage Plug 06813401 7671301802 Chassis Sub-assy 02803101P 02803026P Drainage Connecter 06123401 06123401 Compressor Gasket 76715022 76710207...
- Page 88 Service Manual VIRU36HP230V1AO VIRU30HP230V1AO The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 89 Service Manual Part Code Description VIRU36HP230V1AO VIRU30HP230V1AO Product Code CB432W10100 CB432W10000 Front Grill 01574106 01574106 Cabinet 01435007P 01435007P Axial Flow Fan 10335014 10335014 Drainage hole Cap 76715005 76715005 Electrical Heater (Chassis) 7651000413 7651000413 Drainage Joint 26113009 26113009 Clapboard Sub-Assy 0124525304 0124525304 Magnet Valve Sub-assy 030025000055...
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Page 90: Removal Procedure
Service Manual 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. Steps Procedure 1.Before disassembly of the unit Axonometric drawing for the complete unit. - Page 91 Service Manual Steps Procedure B2 panel 3.Remove display A3/A5 panel display Remove screws fixing display, and then remove the display. 4.Remove panel clasps Pull the clasps at both sides slightly, and then remove the panel. panel 5.Remove horizontal louver Remove the axial bush on the horizontal louver, and then remove the horizontal louver.
- Page 92 Service Manual Steps Procedure 6.Remove detecting plate and top cover of electric box Detecting plate Remove the screw fixing detecting plate and then remove the detecting plate. screw Note:The position of detection board(WIFI) may be different for -different models. screw Remove screws fixing the top cover of electric box.
- Page 93 Service Manual Steps Procedure 8.Remove earthing wire screw Remove earthing screws, and then remove the earthing wire. 9.Remove electric box cover clasp Loosen clasps at the left side of electric box. Loosen clasps on the right side of electric box. clasp electric box cover Remove electric box cover.
- Page 94 Service Manual Steps Procedure 10.Remove temperature sensor Pull out the indoor temperature sensor. temperature sensor 11.Remove electric box Pull out 6 sockets on PCB board. Pull out two screws on electric box. screw electric box Remove the electric box. Installation and Maintenance...
- Page 95 Service Manual Steps Procedure 12.Remove water tray water tray Pull the water tray upwards, and then remove the water tray. 13.Remove connection pipe between indoor and outdoor units Separate the connection pipe between indoor and outdoor units. connection position for indoor and outdoor units' connection pipe 14.Remove pipe-stopping plate Remove two screws on pipe-stopping plate for indoor unit, and then remove the pipe-stopping...
- Page 96 Service Manual Steps Procedure 16.Remove evaporator screw Remove screws between evaporator and bottom case. Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line. Lift up the evaporator, and then remove the evaporator.
- Page 97 Service Manual Steps Procedure 18.Remove cross flow blade and motor blade motor Remove screws fixing cross flow blade and motor. Remove the motor sub-assy. Separate two cross flow blade. Installation and Maintenance...
- Page 98 Service Manual Steps Procedure 19.Remove cushion rubber Remove the cushion rubber on cross flow blade. cushion rubber Remove the cushion rubber from the base. Installation and Maintenance...
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Page 99: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO Note: Take heat pump unit for example. Steps Procedure 1. Remove big handle,valve cover and top cover Remove the screw connecting the big handle and right side plate, and then remove the big handle. Remove the screw connecting the valve cover and right side plate, and then remove the valve cover. - Page 100 Service Manual Steps Procedure 4.Remove grille and panel Twist off the screws connecting the grille and panel, and then remove the grille. Twist off the screws connecting the panel, chassis and motor support with screwd-river, and then remove the panel. grille panel 5.Remove right side plate...
- Page 101 Service Manual Steps Procedure 7.Remove electric box electric box Twist off the screws on electric box, cut off the tieline with scissors or pliers, pull out the wiring terminal, pull it upwards to remove the electric box. Twist off the screws on electric box (fireproofing) electric box with screwdriver, and then remove the electric (fireproofing)
- Page 102 Service Manual Steps Procedure 9.Remove motor support Twist off the tapping screws fixingthe motor support, pull it upwardsand then remove the motor support. motor support 10.Remove isolation sheet Twist off the screws connecting isolation sheet and end plate of condenser and chassis, and then remove the isolation sheet.
- Page 103 Service Manual Steps Procedure 12.Remove gas valve and liquid valve Twist off the 2 bolts fixing the valve sub-assy. Unsolder the soldering joint between gas valve and air-return pipe and then remove the gas valve.(note: when unsoldering the soldering joint, wrap the gas valve with wet cloth completely to gas valve avoid the damage to valve, and release all...
- Page 104 Service Manual Steps Procedure 15.Remove left side plate Twist off the screws connecting the left side plate and chassis with screwdriver, and then remove the left side plate. left side plate 16.Remove chassis and condenser Pull it upwards to separate the chassis and condenser.
- Page 105 Service Manual VIRU36HP230V1AO VIRU30HP230V1AO Procedure Steps 1. Remove big handle,valve cover and top cover Remove the screw connecting the big handle and right side plate, and then remove the big handle. Remove the screw connecting the valve cover and right side plate, and then remove the valve cover. handle valve cover 2.Remove top panel...
- Page 106 Service Manual Steps Procedure 4.Remove grille and panel Twist off the screws connecting the grille and panel, and then remove the grille. Twist off the screws connecting the panel, chassis and motor support with screwd-river, and then remove the panel. grille panel 5.Remove right side plate and axial flow blade...
- Page 107 Service Manual Steps Procedure 8.Remove motor Twist off the tapping screws fixing the motor, pull out the pin of leading wire for motor and then remove the motor. motor 9.Remove motor support Twist off the tapping screws fixingthe motor support, pull it upwardsand then remove the motor support.
- Page 108 Service Manual Steps Procedure accumulator 11.Remove accumulator and gas-liquid separator Twist off the screws connecting accumulator and gas-liquid separator, and then remove the accumulator and gas-liquid separator. gas-liquid separator 12.Remove supporting board sub-assy(accumulator) Twist off the screws connecting supporting board sub-assy(accumulator) and then remove the supporting board sub-assy(accumulator).
- Page 109 Service Manual Steps Procedure 14.Remove gas valve and liquid valve Twist off the 2 bolts fixing the valve sub-assy. Unsolder the soldering joint between gas valve and air-return pipe and then remove the gas valve.(note: when unsoldering the soldering joint, wrap the gas valve with wet cloth completely to gas valve avoid the damage to valve, and release all...
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Page 110: 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 （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）... -
Page 111: 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 112: 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) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039... - Page 113 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4...
- Page 114 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36...
- Page 115 Fax: (+86-756) 8669426 U.S. E-mail: info@twclimate.com www.greecomfort.com U.S. Contractor Support 888-850-7928 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.
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