Change for life Service & Parts (pg.73) 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.
Service Manual Table of Contents Part Ⅰ : Technical Information........................................................................1 1. Summary.......................................................................................................................1 2. Specifications...........................................................................................................3 2.1 Specification Sheet..............................................................................................
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.
Service Manual Part Ⅰ : Technical Information 1.
Service Manual VIRU36HP230V1AO VIRU30HP230V1AO A Remote Controller: YV1FB9F YAN1F6F WIFI MODE ON/OFF FAN SWING TIMER ON CLOCK TURBO TEMP SLEEP IFEEL X-FAN TIMER OFF Model List: No 1 2 3 Indoor product Outdoor Remote Outdoor model code product code Controller GWC30LB-D3DNB2G CB433000102 GWC30LB-D3DNB2G/I CB433N00102 GWC30LB-D3DNA3G/O CB171W10700 GWC30QF-D3DNB4G CB434005001 GWC30QF-D3DNB4G/I CB434N05001 GWC36LB-D3DNB2G CB433000302 GWC36LB-D3DNB2G/I CB433N00302 YAN1F6F(WiFi) GWC36LB-D3DNA3G/
Service Manual 2. Specifications 2.
Service Manual Model of Outdoor Unit GWC30LB-D3DNA3G/O Outdoor Unit Product Code Compressor Manufacturer/Trademark Compressor Model Compressor Oil Compressor Type Compressor Locked Rotor Amp (L.R.A) VIRU30HP230V1AO CB171W10700 ZHUHAI LANDA COMPERSSOR CB171W10600 ZHUHAI LANDA COMPERSSOR CO.LTD. QXAS-D23zX090 CO.LTD. QXAS-D23zX090 RB68EP RB68EP Rotary Rotary 40 40 Compressor RLA A 13.45 13.
Service Manual V~ 208/230 GWH36LB-D3DNB2G GWH36LB-D3DNA5G GWH36QF-D3DNB4G CB433000402 CB169001002 CB434004901 208/230 Hz 60 60 1 1 GWC36LB-D3DNB2G GWC36QF-D3DNB4G Model CB433000302 CB434005102 Product Code Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Cooling Capacity(Min~Max) Btu/h Heating Capacity(Min~Max) Outdoor Outdoor 33600(7404~35997) 33600(7404~35997) Btu/h / 34600(14979~35997) Cooling Power Input(Min~Max) W 4100 4100(450~4300) Heating Power Input(Min~
Service Manual Model of Outdoor Unit GWC36LB-D3DNA3G/O(LC) Outdoor Unit Product Code CB171W10900 MITSUBISHI ELECTRIC Compressor Manufacturer/Trademark CB171W10800 MITSUBISHI ELECTRIC (GUANGZHOU)COMPRESSOR (GUANGZHOU)COMPRESSOR CO. LTD TNB306FPGMC CO. LTD TNB306FPGMC Compressor Oil FV50S FV50S Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) 67.00 67.00 Compressor Model Compressor RLA A 17.5 17.
Service Manual Model Product Code Rated Voltage Power Supply Rated Frequency VIRU36HP230V1AH CB432010100 VIRU30HP230V1AH CB432010000 V~ 208/230 208/230 Hz 60 60 1 1 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) W 3220(500~4100) 2500(420~3650) Heating Power Input(Min~Max) W 3100(1000~7000) 2700(520~5800) Cooling Power C
Service Manual Model of Outdoor Unit VIRU36HP230V1AO Outdoor Unit Product Code VIRU30HP230V1AO CB432W10100 CB432W10000 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark Compressor Model CO., LTD QXAW-F518zX440C CO., LTD QXFW-D318ZX035 Compressor Oil FV50S or equivalent FW68DA or equivalent Rotary Rotary 36 30 Compressor Type Compressor Locked Rotor Amp (L.R.
Service Manual 2.2 Capacity Variation Ratio According to Temperature Heating operation ambient temperature range is -4ºF~75ºF Cooling Heating 105 110 100 100 Capacity ratio (%) Capacity ratio (%) 95 90 85 80 75 70 Conditions Indoor: DB 80°F WB66 °F Indoor air flow: Super High Pipe length : 24.6ft 65 60 55 50 90 95 100 105 90 80 70 Conditions Indoor:DB 70°F Indoor air flow:Super High Pipe length: 24.6ft 60 50 40 -4 110 5 14 Outdoor temp. (˚F) 23 32 41 50 Outdoor temp.
Service Manual 2.3 Noise Curve Indoor side noise Outdoor side noise 60 80 36K 70 50 Noise dB(A) Noise/dB(A) 75 30K 40 36K 65 60 30K 55 50 30 L M H 45 20 SH 30 40 50 60 70 80 90 100 Compressor frequency(Hz) Indoor fan motor rating speed 2.
Service Manual 3. Outline Dimension Diagram 12 53/64 3.1 Indoor Unit 53 9/64 1 37/64 13 25/32 10 29 3/8 10 Φ2 3/4 Φ2 3/4 11 19/32 3 1/2 Unit:inch 3.
Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 14 1/6 40 43 1/2 A 43 37/64 16 9/64 24 5/6 Unit:inch 12 Technical Information
Service Manual 4.
Service Manual 36K except VIRU36HP230V1AH : Cooling only model Outdoor unit Indoor unit Gas pipe side Valve Discharge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger (condenser) Liquid pipe side Valve Electron expansion valve Strainer COOLING Cooling and heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Discharge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger (condenser) Liquid pipe side Valve Strainer Electron e
Service Manual VIRU36HP230V1AH VIRU30HP230V1AH Electronic expansion valve A Outdoor evaporator Unloading valve 4-way valve Solenoid valve (high pressure) Solenoid valve (low pressure) Gas-liquid separator Flash vaporizer Gas-liquid separator Variable volume Air injection Compressor Indoor evaporator Electronic expansion valve B COOLING HEATING Connection pipe specification: Liquid pipe:1/4 inch Gas pipe:5/8 inch Technical Information 15
Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name WH White GN Green CAP Jumper cap COMP YE Yellow BN Brown RD Red BU Blue Compressor YEGN Yellow/Green BK Black / / VT Violet OG Orange / / Grounding wire Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
Service Manual ● Outdoor Unit / 57 ,1'225 81,7 :+ %8 / / / *1 <(*1 / / / . . . (+ 8 &203 * : 9 0$*1(7,& 5,1* / / 5' 5' %8 9 $& / $3 35,17(' &,5&8,7 %2$5' &20 1 2 .
Service Manual ,1'225 81,7 *1 <(*1 * 7(50,1$/ %/2&. :+ %8 %8 1 %. 5' %1 %1 %. %1 / :+ %8 / 57 57 57 . . . . %. %. :+ %27720 %$1' +($7(5 &2035(6625 %$1' +($7(5 68&7,21 7(03 6(1625 (.9 (;+$867 7(03 6(1625 (.9 2875220 7(03 6(1625 57 28778%( 7(03 6(1625 (/(&7521,& (;3$16,21 9$/9( % :$51,1* 3OHDVH GRQ W WRXFK DQ\ HOHFWURQLF FRPSRQHQW RU WHUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN
Service Manual 5.
Service Manual Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO ● Top view 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 No. Name No.
Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 1 2 3 4 5 6 7 8 19 18 17 16 15 14 13 12 11 10 No. 1 2 3 4 5 6 7 Name Neutral wire Grounding wire Live wire Communication interface Terminal of outdoor fan Terminal of high pressure valve Interface C of electric heating Technical Information No. 8 9 10 11 12 13 14 9 Name No.
Service Manual 6. Function and Control 6.
Service Manual 1. ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. 2. MODE button Press this button to select your required operation mode. AUTO COOL DRY FAN 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. Press "FAN" button can adjust fan speed. Press "SWING" button can adjust fan blowing angle.
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. (Temperature can’t be adjusted under auto mode) ● When setting TIMER ON, TIMER OFF or CLOCK, press "▲" or "▲" button to adjust time.
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. ON/OFF button has no effect on setting. If you dont need this function, please use remote controller to cancel it. Function introduction for combination buttons 1.
Service Manual Replacement of batteries in remote controller 1. Press the back side of remote controller marked with " out the cover of battery box along the arrow direction. 2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar are correct. 3. Reinstall the cover of battery box. signal sender battery reinstall remove Note: Cover of battery box ● During operation, point the remote control signal sender at the receiving window on indoor unit.
Service Manual 6.
Service Manual AUTO COOL DRY FAN HEAT* OFF 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.
Service Manual WiFi button Press " WiFi " button to turn on or turn off WiFi function. When WiFi function is turned on, the " WiFi " icon will be displayed on remote controller; Under status of unit off, press "MODE" and " WiFi " buttons simultaneously for 1s, WiFi module will restore to factory default setting. ● This function is only available for some models.
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. Press this two buttons simultaneously again to close I FEEL function and " " will disappear.
Service Manual 6.3 GREE+ App Operation Manual Control Flow Chart Internet Gree intelligent home appliances Gree Cloud Cellular/ Other Wi-FI Home Wi-Fi Home wireless router Home Wi-Fi GREE+ APP Operating Systems Requirement for User's smart phone: iOS system Support iOS7.0 and above version Android system Support Android 4.4 and above version Download and installation GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it.
Service Manual 6.4 Ewpe Smart App Operation Manual Control Flow Chart Internet intelligent home appliances Cloud Cellular/ Other Wi-FI Home Wi-Fi Home wireless router Home Wi-Fi APP Operating Systems Requirement for User's smart phone: iOS system Support iOS7.0 and above version Android system Support Android 4.4 and above version Download and installation App Download Linkage Scan the QR code or search "Ewpe Smart" in the application market to download and install it.
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.
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. 28.4°F ≤ Toutdoor amb. c. 23.4°F < Toutdoor amb. ≤ 28.4°F, Toutdoor pipe ≤ 17.6°F; d. 14°F < Toutdoor amb. < 23°F, Toutdoor pipe- Tcompensation ≤ Toutdoor amb.-5.4°F; e. Toutdoor amb.
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. If Ttube ≥ 131°F, frequency rise is not allowed. 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 blow residue heat and then stop.
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: Important! Please read the safety precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions below. ●The installation or maintenance must accord with the instructions. ●Comply with all national electrical codes and local electrical codes.
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. Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury. 2.
Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 38 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8. Vacuum pump 9. Pressure meter 10. Pipe pliers, pipe cutter 11. Pipe expander, pipe bender 12.
Service Manual 8. Installation At least 5 7/8 inch Space to the ceiling 8.
Service Manual Installation procedures Start installation Preparation before installation Read the requirements for electric connection select installation location Select indoor unit installation location Prepare tools Select outdoor unit installation location Install the support of outdoor unit (select it according to the actual situation) Install wall-mounting frame, drill wall holes Connect pipes of indoor unit and drainage pipe Fix outdoor unit Connect wires of indoor unit Install drainage j
Service Manual 8.2 Installation Parts-checking No. 1 2 Name Indoor unit Outdoor unit No. 8 9 3 Connection pipe 10 4 Drainage pipe Wall-mounting frame Connecting cable(power cord) Wall pipe 11 5 6 7 12 13 Name Sealing gum Wrapping tape Support of outdoor unit Fixing screw Drainage plug(cooling and heating unit) Owners manual, remote controller Note: 1.Please contact the local agent for installation. 2.Dont use unqualified power cord. 8.3 Selection of Installation Location 1.
Service Manual in the holes. (3) Fix the wall-mounting frame on the wall with tapping screws (ST4.2X25TA) and then check if the frame is firmly installed by pulling the frame. If the plastic expansion particle is loose, please drill another fixing hole nearby. 3. Install Wall-mounting Frame (1) Choose the position of piping hole according to the direction of outlet pipe. The position of piping hole should be a little lower than the wall-mounted frame.(As show in Fig.
Service Manual (2) Fix the wire crossing board on connection wire sleeve at the bottom case; let the connection wire sleeve go through the wire crossing hole at the back of indoor unit, and then pull it out from the front.(As show in Fig.12) connection wire sleeve Fig.12 8. Bind up Pipe (1) Bind up the connection pipe, power cord and drain hose with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.
Service Manual 8.6 Installation of Outdoor Unit Hex nut diameter(inch) Φ1/4 Φ3/8 Φ1/2 Φ5/8 Φ3/4 1. Fix the Support of Outdoor Unit(Select it according to the actual installation situation) (1) Select installation location according to the house structure. (2) Fix the support of outdoor unit on the selected location with expansion screws. Note: (1) Take sufficient protective measures when installing the outdoor unit. (2) Make sure the support can withstand at least four times the unit weight.
Service Manual (3) The water outlet cant be placed in water in order to drain smoothly.(As show in Fig.27) 8.8 Check after Installation and Test Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant NO. The drain hose can't be fluctuant The water outlet can't be fluctuant 1 The water outlet can't be placed in water 2 Fig.27 Fig.26 4 8.7 Vacuum Pumping and Leak Detection 1.
Service Manual 9. Troubleshooting 9.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.
Service Manual Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.
Service Manual Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.
Service Manual Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Operation Cool A/C status Possible Causes Heating Indicator Indicator Indicator 26 Compressor intermediate frequence in P3 test state (during blinking, ON 0.25s and OFF 0.25s) (during blinking, ON 0.25s and OFF 0.
Service Manual Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display A/C status Possible Causes Operation Cool Heating Indicator Indicator Indicator During cooling and drying 34 System is abnormal operation, compressor will stop OFF 3S Refer to the malfunction analysis while indoor fan will operate; and blink (overload, high temperature During heating operation, the 4 times resistant) complete unit will stop H4 operation.
Service Manual Display Method of Indoor Unit NO. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.
Service Manual Display Method of Indoor Unit Indicator Display (during NO. Malfunction Name Dual-8 blinking, ON 0.5s and OFF Code 0.5s) A/C status Possible Causes Heating Display Operation Cool Indicator Indicator Indicator Normal 53 54 52 communication Defrosting OFF 3S and blink once (during blinking, ON 10s and OFF 0.5s) Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation.
Service Manual Installation and Maintenance 53
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.
Service Manual 9.2 How to Check Simply the Main Part Indoor unit 1.
Service Manual 2.Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Whether the fan blades can run smoothly? Yes smoothly. Turn unit on to check whether the malfunction is eliminated. No Under power-off condition, check whether the wiring terminal between indoor fan and main board is loose. No Adjust the motor and blade assembly so that rotor can run No Reinsert the wiring terminal of indoor fan.
Service Manual 3.
Service Manual 4.
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 back on U8 is still displayed No The unit returns to normal. Conclusion:U8 is displayed due to power off/on while the capacitor discharges slowly.
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 Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected.
Service Manual 7.
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.
Service Manual (2) 5.
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 Is outdoor ambient temperature higher than 53? Y Normal protection, please operate it after the outdoor ambient tempera
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 Is stop time of the compressor longer than 3 minutes? Restart it up after 3 minutes N Y Does startup fail? Y Are the wires for the compressor connected correctly? Is connection sequence right? N Connect the wires as per the connection diagram Y R
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 once the unit is powered on.
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 electronic expansion valve connected correctly? Connect the wires correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 oh
Service Manual (7) High-pressure Protection High-pressure protection Use pressure gauge to measure if the pressure is really high? no Measure if the pressure switch is normal˛ Replace the mainboard of outdoor unit no yes Check if the operation mode of indoor unit is set properly? yes no Set the correct operation mode Replace the pressure switch yes Check if the gas valve and liquid valve are fully open ? no Fully open the valve yes Check if the front panel of outdoor unit is covered tightly
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 Y Did the equipment operate normally before the failure occurs? N Check the wiring of the indoor and outdoor units wi
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 Y Did the equipment operate normally before the failure occurs? N Check the wiring of the indoor and out
Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes No power supply, or poor connection for power plug Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, After energization, operation indicator isnt bright wait for power recovery. If not, check power and the buzzer cant give out sound supply circuit and make sure the power plug is connected well.
Service Manual 4.
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit For some models: 22 21 46 WIFI MODE TURBO 5 3 6 7 8 9 20 19 18 17 16 ON/OFF FAN TIMER ON SWING CLOCK TIMER OFF TEMP SLEEP IFEEL X-FAN 12 11 10 13 14 15 23 24 25 26 27 28 4 2 36 37 1 35 34 33 32 31 30 29 38 39 42 41 40 The component picture is only for reference; please refer to the actual product.
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Service Manual VIRU36HP230V1AH VIRU30HP230V1AH 21 20 43 42 40 41 19 18 17 16 15 14 13 12 7 8 9 10 11 22 23 6 5 4 24 3 25 2 26 1 27 28 29 33 30 31 34 32 35 36 39 38 37 The component picture is only for reference; please refer to the actual product.
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Service Manual 10.2 Outdoor Unit GWC30LB-D3DNA3G/O GWC36LB-D3DNA3G/O 25 32 24 26 33 23 22 21 20 19 18 27 34 28 35 29 36 30 37 31 17 16 15 14 1 2 3 4 5 6 7 13 8 9 10 11 12 The component picture is only for reference; please refer to the actual product.
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Service Manual VIRU30HP230V1AO VIRU36HP230V1AO 28 35 29 36 27 26 24 25 23 22 21 30 37 31 38 32 39 33 40 34 20 41 19 18 17 1 2 3 4 5 6 7 8 9 10 16 11 12 13 14 15 The component picture is only for reference; please refer to the actual product.
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Service Manual VIRU36HP230V1AO VIRU30HP230V1AO 30 31 29 28 27 32 33 34 26 35 36 25 24 37 38 23 22 21 20 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 The component picture is only for reference; please refer to the actual product.
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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 completely before removal. 11.1 Removal Procedure of Indoor Unit Steps Procedure 1.Before disassembly of the unit Axonometric drawing for the complete unit. 2.Remove filter a Open the panel. b Loosen the clasps on the filter. panel clasps c Draw out two pieces of filter.
Service Manual Steps Procedure B2 panel 3.Remove display A3/A5 panel Remove screws fixing display, and then remove the display. 4.Remove panel Pull the clasps at both sides slightly, and then remove the panel. display clasps panel 5.Remove horizontal louver Remove the axial bush on the horizontal louver, and then remove the horizontal louver.
Service Manual Steps Procedure 6.Remove detecting plate and top cover of electric box a Detecting plate Remove the screw fixing detecting plate and then remove the detecting plate. Note:The position of detection board(WIFI) may be different for -different models. screw screw Remove screws fixing the top cover of electric box. b Remove the top cover of electric box. top cover of electric box screw cap 7.Remove front case a Remove the screw caps on front case.
Service Manual Steps Procedure 8.Remove earthing wire screw Remove earthing screws, and then remove the earthing wire. 9.Remove electric box cover clasp a Loosen clasps at the left side of electric box. b Loosen clasps on the right side of electric box. clasp electric box cover b 90 Remove electric box cover.
Service Manual Steps Procedure 10.Remove temperature sensor Pull out the indoor temperature sensor. temperature sensor 11.Remove electric box a Pull out 6 sockets on PCB board. b Pull out two screws on electric box. screw electric box c Remove the electric box.
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 plate. screw pipe-stopping plate 15.
Service Manual Steps Procedure 16.Remove evaporator screw a Remove screws between evaporator and bottom case. b Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line. c Lift up the evaporator, and then remove the evaporator. evaporator 17.Remove the fixing plate of motor Remove 2 screws on fixing plate of motor, and then remove the fixing pate of motor.
Service Manual Steps Procedure 18.Remove cross flow blade and motor 94 a Remove screws fixing cross flow blade and motor. b Remove the motor sub-assy. c Separate two cross flow blade.
Service Manual Steps Procedure 19.Remove cushion rubber a Remove the cushion rubber on cross flow blade. cushion rubber b Remove the cushion rubber from the base.
Service Manual 11.2 Removal Procedure of Outdoor Unit GWC30LB-D3DNA3G/O VIRU30HP230V1AO GWC36LB-D3DNA3G/O VIRU36HP230V1AO Note: Take heat pump unit for example. 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.
Service Manual Procedure Steps 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 right side plate Twist off the screws connecting the right side plate and chassis, valve support and condenser, and then remove the right side plate. 6.
Service Manual Procedure Steps 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) with screwdriver, and then remove the electric box (fireproofing). electric box (fireproofing) 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.
Service Manual Procedure Steps 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. isolation sheet 11.Remove 4-way valve 4-way valve Unsolder the pipeline between compressor, condenser, gas and liquid valve, and then remove the 4-way valve.
Service Manual Procedure Steps 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 avoid the damage to valve, and release all refrigerant completely at first). Unsolder the soldering joint between liquid valve and connection pipe of liquid valve, and then remove the liquid valve.
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.
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 top panel Remove the screws connecting the top panel with the front panel and left&right side plate, and then remove the top panel. 3.
Service Manual Procedure Steps 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 right side plate Twist off the screws connecting the right side plate and chassis, valve support and condenser, and then remove the right side plate.
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. motor support 10.
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). supporting board sub-assy(accumulator) 13.
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 avoid the damage to valve, and release all refrigerant completely at first). Unsolder the soldering joint between liquid valve and connection pipe of liquid valve, and then remove the liquid valve.
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 display Fahrenheit Celsius（℃） temperature （℉） （℉） 61 60.8 16 62/63 62.6 17 64/65 64.4 18 66/67 66.2 19 68 68 20 Fahrenheit display Fahrenheit Celsius（℃） temperature （℉） （℉） 69/70 69.8 21 71/72 71.6 22 73/74 73.4 23 75/76 75.
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 A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ● Cut the required pipe with pipe cutter. B:Remove the burrs ● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp.(oF) -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 50 51.8 53.6 55.4 57.2 59 60.8 62.6 64.4 66.2 Resistance(kΩ) 138.1 128.6 121.6 115 108.7 102.9 97.4 92.22 87.35 82.75 78.43 74.35 70.5 66.88 63.46 60.23 57.18 54.31 51.59 49.02 46.6 44.31 42.14 40.09 38.15 36.32 34.
Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 50 51.8 53.6 55.4 57.2 59 60.8 62.6 64.4 66.2 181.4 171.4 162.1 153.3 145 137.2 129.9 123 116.5 110.3 104.6 99.13 94 89.17 84.61 80.31 76.24 72.41 68.79 65.37 62.13 59.08 56.19 53.
Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.(oF) -20.2 -18.4 -16.6 -14.8 -13 -11.2 -9.4 -7.6 -5.8 -4 -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 Resistance(kΩ) 853.5 799.8 750 703.8 660.8 620.8 580.6 548.9 516.6 486.5 458.3 432 407.4 384.5 362.9 342.8 323.9 306.2 289.6 274 259.3 245.6 232.6 220.5 209 198.3 199.1 178.5 169.5 161 153 145.4 138.3 131.5 125.1 119.1 113.4 108 102.
JF00302748 Cat No: GREE_VIRU_A_SERVICE & PARTS_010119 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522218 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.
