Gree LIVV09HP115V1AH Service Manual
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Gree LIVV09HP115V1AH Service Manual

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Service Manual
LIVV09HP115V1AH
LIVV12HP115V1AH
LIVV09HP115V1AO
LIVV12HP115V1AO
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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  • Page 1 Change for life Service Manual LIVV09HP115V1AH LIVV12HP115V1AH LIVV09HP115V1AO LIVV12HP115V1AO GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    6. Function and Control ..................56 6.1 Remote Controller Introduction ...............56 6.1 Remote Controller Introduction of YAP1F7F(WiFi) ........61 6.2 GREE+ App Operation Manual ................66 6.3 Ewpe Smart App Operation Manual ..............67 6.4 Brief Description of Modes and Functions ...........68 Part II : Installation and Maintenance ...........77...
  • Page 3 Service Manual 8.5 Installation of Indoor Unit ..................82 8.6 Installation of Outdoor Unit ................84 8.7 Vacuum Pumping and Leak ................86 8.8 Check after Installation and Test Operation ..........86 9. Maintenance ......................87 9.1 Error Code List ......................87 9.2 Procedure of Troubleshooting ................88 9.3 Troubleshooting for Normal Malfunction ............103...

  • Page 4: Part I : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit LIVV09HP115V1AH LIVV12HP115V1AH B2 Panel...
  • Page 5 Service Manual Outdoor Unit LIVV09HP115V1AO LIVV12HP115V1AO Remote Controller YAN1F6F(WiFi) YAP1F7F(WiFi) ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP Technical Information...
  • Page 6 Service Manual Model List: Indoor Outdoor Remote Model Product code Indoor model Outdoor model product code product code Controller LIVV09HP115V1A CB434018400 LIVV09HP115V1AH CB432N26500 LIVV09HP115V1AO CB425W08201 YAN1F6F (WiFi) CB432N09100 LIVV12HP115V1AO CB425W07902 GWH12QC-A3DNB4K CB434018500 LIVV12HP115V1AH...

  • Page 7: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet GWC09QB-A3DNA5E Model GWC09QB-A3DNB8E GWC09QB-A3DNA6E CB425006500 Product Code CB438003801 CB427004001 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000(2764~10918) 9000(2764~10918) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 823(350~1270) 823(350~1270) Heating Power Input(Min~Max) Cooling Power Current...
  • Page 8 Service Manual Model of Outdoor Unit GWC09QB-A3DNA6E/O(LC) Outdoor Unit Product Code CB427W04000 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...
  • Page 9 Service Manual GWH09QB-A3DNB8E GWH09QB-A3DNA5E Model GWH09QB-A3DNB2E GWH09QB-A3DNC2E GWH09QB-A3DNB6E CB438003702 CB425006400 Product Code CB432006002 CB439006001 CB435002001 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000(2764~10918) 9000(2764~10918) Heating Capacity(Min~Max) Btu/h 9600(2081~12263) 9600(2081~12263) Cooling Power Input(Min~Max) 895(350~1270) 895(350~1270) Heating Power Input(Min~Max)
  • Page 10 Service Manual Model of Outdoor Unit GWH09QB-A3DNA6E/O(LCLH) Outdoor Unit Product Code CB427W03900 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...
  • Page 11 Service Manual GWC12QC-A3DNA5E GWC12QC-A3DNB8E Model GWC12QC-A3DNC8E GWC12QC-A3DNA6E CB425006201 CB438004001 Product Code CB456002901 CB427003801 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 1155(380~1300) Heating Power Input(Min~Max) Cooling Power Current 12.40 Heating Power Current Rated Input...
  • Page 12 Service Manual LIVV12HP115V1A Model CB425007902 Product Code Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) Heating Capacity(Min~Max) Btu/h 13000(3412~15013) Cooling Power Input(Min~Max) 1193(380~1300) Heating Power Input(Min~Max) 1250(350~1350) Cooling Power Current 13.5 Heating Power Current 13.8 Rated Input 1350...
  • Page 13 Service Manual Model of Outdoor Unit LIVV12HP115V1AO Outdoor Unit Product Code CB425W07902 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 15.23 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...
  • Page 14 Pint/h 1.69 (Btu/h)/W 10.00 (Btu/h)/W 10.92 SEER 18.00 HSPF 9.00 Application Area 14.35-21.53 I LIVV09HP115V1AH Model of indoor unit CB464N04100 Indoor Unit Product Code CB434N18400 Fan Type Cross-flow Diameter Length(DXL) inch Φ3 7/8X24 15/16 Fan Motor Cooling Speed(SH/H/M/L) r/min 1350/1200/1050/750...
  • Page 15 Service Manual Model of Outdoor Unit LIVV09HP115V1AO Outdoor Unit Product Code CB425W08201 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...

  • Page 16: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature 09K & 12K for some models Heating Cooling Conditions Conditions Indoor:DB80°F/WB66.9°F Indoor:DB70°F Outdoor:DB95°F Outdoor:DB19.94°F/WB19.04°F Indoor air flow:Super High Indoor air flow:Super High Pipe length:24.6ft Pipe length:24.6ft 104 105.8 107.6 109.4 89.6 91.4 93.2 96.8 98.6 100.4 102.2 Outdoor temp.(°F)

  • Page 17: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor and temperature of heat Fan speed of Fan speed of condition(°F) (DB/WB) Model revolution outdoor unit exchanger indoor unit outdoor unit...

  • Page 18: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 4 7/8 21 5/16 7 1/16 6 5/8 18 1/4 6 1/4 4 7/8 21 5/16 7 1/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 1 3/8 2 1/8 2 1/8 1 3/8...

  • Page 19: Outdoor Unit

    Service Manual 3.2 Outdoor Unit LIVV09HP115V1AO LIVV12HP115V1AO 33 3/8 12 5/8 21 1/4 Unit:inch Technical Information...
  • Page 20 Service Manual Cooling and heating unit LIVV09HP115V1A LIVV12HP115V1A Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 21: Electrical Part

    Service Manual 5. Electrical Parts 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 22 Service Manual LIVV09HP115V1AO(CB425W08200) LIVV12HP115V1AO(CB425W07900) N(1) 600007060674 Technical Information...

  • Page 23: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Top view Name Interface of communication wire for indoor unit and outdoor unit 2 Interface of live wire 3 Interface of neutral wire 4 Interface of fan 5 Jumper cap Interface of health function live wire (only for the mode with this function) 7 Up&down swing interface 8 Feedback interface of indoor unit...
  • Page 24 Service Manual LIVV09HP115V1AO(CB425W08201) LIVV12HP115V1AO(CB425W07902) Top view Name 4-way valve terminal Terminal of outdoor fan Grounding wire Terminal of power supply live wire terminal Terminal of power supply neutral wire Communication wire Terminal of outdoor unit temperature sensor Compressor overload protection terminal Interface of electronic expansion Compressor wiring terminal...

  • Page 25: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction YAN1F6F(WiFi) 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 Send signal...
  • Page 26 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 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℃ . Holding "▲" or " " button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change accordingly. (Temperature can't be adjusted under auto mode) ●...
  • Page 28 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 Service Manual Replacement of batteries in remote controller signal sender battery 1. Press the back side of remote controller marked with " ", as shown in the fig, and then push out the cover of battery box along the arrow direction. 2.

  • Page 30: Remote Controller Introduction Of Yap1F7F(Wifi)

    Service Manual 6.1 Remote Controller Introduction of YAP1F7F(WiFi) Notice: 1.This is a general use remote controller. It could be used for the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status. 2.After putting through the power, the air conditioner will give out a sound.
  • Page 31 Service Manual Hold fan speed button for 2s to stop indoor fan directly. unit will swing back and forth from up to down, and then loosen Having set X-FAN function off: After turning off the unit by the button, the unit present position of guide louver will be kept pressing "...
  • Page 32 Service Manual or enquiry procedure, press "ON/OFF" button, "Mode" button, "Sleep" button, the sleep curve setting or enquiry status will quit button CLOCK similarly. Press this button to set clock time. " " icon on remote controller will blink. Press "▲" or " ▼ " button within 5s to set clock time. WiFi button Each pressing of "▲"...
  • Page 33 Service Manual Introduction for icons on display screen this function is started up, " " and "8°C" will be shown on remote controller, and the air conditioner keep the heating status at 8°C. I feel Press "TEMP" and "CLOCK" buttons simultaneously again to exit Set fan speed 8°C heating function.
  • Page 34 Service Manual ● During operation, point the remote control signal sender at the receiving window on indoor unit. The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them. ●...

  • Page 35: 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 36: 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 37: Brief Description Of Modes And Functions

    Service Manual 6.4 Brief Description of Modes and Functions Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 38 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.
  • Page 39 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 40 Service Manual 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 41 Service Manual 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 42 Service Manual 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 43 Service Manual (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 44 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesn't shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 45 Service Manual 6. Electric Heating Function of Chassis (1) When T ≤32ºF , the electric heating of chassis will operate; outdoor amb. (2) When T >35.6ºF , the electric heating of chassis will stop operation; outdoor amb. (3)When 32ºF <T ≤35.6ºF, the electric heating of chassis will keep original status.

  • Page 46: Part Ii : Installation And Maintenance

    Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: connection wire from the manufacture or distributor. Prohibit prolong the wire by yourself. Important! 11. For the air conditioner without plug, an air switch must be installed in the circuit.
  • Page 47 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 48 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.

  • Page 49: 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 50 Service Manual Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 51: 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. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch.
  • Page 52 Service Manual 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show and then check if the frame is firmly installed by pulling the in Fig.5) frame.

  • Page 53: Installation Of Outdoor Unit

    Service Manual 7. Connect Wire of Indoor Unit Indoor and outdoor power cord (1) Open the panel, remove the screw on the wiring cover and Indoor unit then take down the cover.(As show in Fig.11) pipe Screw Panel Liquid Fig.14 pipe Band Drain hose...
  • Page 54 Service Manual cable cross LIVV12HP115V1AO plate sub-assy Drain vent Chassis At least 1 1/6 inch Outdoor drain join t above the floor Drain hose white green black white (blue) green (yellow- (brown) black (yellow- (blue) (brown) green) Fig.18 Fig.19 green) 2.

  • Page 55: Vacuum Pumping And Leak

    Service Manual 2. Leakage Detection (1) With leakage detector: The drain hos can't raise Check if there is leakage with leakage detector. upwards (2) With soap water: Wall If leakage detector is not available, please use soap water for Fig.24 leakage detection.

  • Page 56: Maintenance

    Service Manual 9. Maintenance 9.1 Error Code List Display of lamp (the # of flashes) Display of Name of malfunction Indoor Outdoor indoor unit Anti-freezing protection Block or Low pressure of refrigerant system Compressor exhaust high temperature protection AC over-current protection Communication failure between indoor unit and outdoor unit Anti-high temperature protection No feedback of indoor fan motor...

  • Page 57: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting 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 58 Service Manual (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● Is the control terminal of PG motor connected tightly? ● Is the feedback interface of PG motor connected tightly? ● The fan motor doesn't operate? ●...
  • Page 59 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? ● Is the jumper broken? ● Is the motor working properly? ●...
  • Page 60 Service Manual (4) 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 4. 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 62 Service Manual 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 63 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. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
  • Page 64 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 65 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 good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 66 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 67 Service Manual (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
  • Page 68 Service Manual (6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV 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 69 Service Manual (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
  • Page 70 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 71 Service Manual (9) Malfunction of Overcurrent Protection 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 72: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isn't bright wait for power recovery.
  • Page 73 Service Manual 4. ODU Fan Motor Can't 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...

  • Page 74: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference please refer to the actual product. Description Description Description Front Panel 12 Evaporator Assy 22 Jumper Front Case...
  • Page 75 Service Manual LIVV09HP115V1AO(CB425W08200) LIVV12HP115V1AO(CB425W07900) The component picture is only for reference please refer to the actual product. Description Description Description Front Grill 13 Right Side Plate Assy 25 Motor suport spot welding sub-assy Cabinet 14 Valve 26 Fan Motor Electrical heater (Chassis) 15 Valve Support 27 Capacitor Box Sub-Assy Axial Flow Fan...
  • Page 76 Service Manual LIVV09HP115V1AO(CB425W08201) LIVV12HP115V1AO(CB425W07902) The component picture is only for reference please refer to the actual product. Description Description Description Front Grill 13 Cover of Pass Wire 25 Top Cover Sub-Assy Front Panel Assy 14 Right Side Plate Assy 26 Condenser Assy Axial Flow Fan 15 Cable Cross Plate 2 27 Motor Support...

  • Page 77: 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 completely before removal. 11.1 Removal Procedure of Indoor Unit NOTE: Take A5 panel for an example. Step Procedure 1.
  • Page 78 Service Manual Step Procedure 4. Remove electric box cover 2 and detecting plate(WIFI) Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Detecting plate(WIFI) detecting plate(WIFI). Note:the position of detection board(WIFI) may be different for different models.
  • Page 79 Service Manual Steps Procedure 7. Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to remove Bottom case vertical louver. Vertical louver Vertical Clasps louver 8. Remove electric box assy Screw Clasps Loosen the connection clasps between shield cover of electric box sub-assy and electric box, and then remove the shield cover of electric box sub-assy.
  • Page 80 Service Manual Steps Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. Circlip The pulling method is as below: Holder ① Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 81 Service Manual Steps Procedure 10. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...

  • Page 82: 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. Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy Remove the screws fixing cable cross plate...
  • Page 83 Service Manual Steps Procedure 4.Remove front panel front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. 5.Remove right side plate Remove connection screws connecting the right side plate right side plate with the valve support and the electric box.
  • Page 84 Service Manual Steps Procedure 7.Remove motor and motor support motor support tor Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws re-move it. motor 8.Remove electric box assy electric box assy Remove the 2 screws fixing the cover of elec-tric box.
  • Page 85 Service Manual Steps Procedure 10.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil and remove the coil. Wrap the 4-way Valve Assy with wet cotton and unsolderthe 4 weld spots connecting the 4-way Valve Assy to take it out(Note: Refrig- erant shouldbe discharged firstly.) Welding processshould be as quickly as possible and...

  • Page 86: 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 60.8 69/70 69.8 78/79 78.8 62/63...

  • Page 87: 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 88: 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.( 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 1.039 121.6...
  • Page 89 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 90 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 91 JF00302771 CAT NO. GREE_LIVO GEN3_115V_SERVICE_04112022 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com www.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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