Gree ALL-MATCH R32 Series Service Manual
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Gree ALL-MATCH R32 Series Service Manual

Gree ALL-MATCH R32 Series Service Manual

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ALL-MATCH INVERTER SERIES_R32
Service Manual
CAS30HP230V1R32AH
CAS36HP230V1R32AH
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
FLR30HP230V1R32AH
FLR36HP230V1R32AH

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Summary of Contents for Gree ALL-MATCH R32 Series

  • Page 1 Change for life ALL-MATCH INVERTER SERIES_R32 Service Manual FLR30HP230V1R32AH CAS30HP230V1R32AH FLR36HP230V1R32AH CAS36HP230V1R32AH GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    Table of Contents Part I : Technical Information ........1 1. Summary ................. 1 2. Specifications ............... 3 3. Outline Dimension Diagram ........9 ........................9 3.1 Indoor Unit ......................11 3.2 Outdoor Unit 4. Refrigerant System Diagram ....... 12 5. Electrical Part .............
  • Page 3 10.1 Error Code List ......................56 10.2 Procedure of Troubleshooting ................61 10.3 Troubleshooting for Normal Malfunction ............73 11. Removal Procedure ..........75 ..............75 11.1 Removal Procedure of Indoor Unit .............82 11.2 Removal Procedure of Outdoor Unit Appendix ................91 Appendix 1: Reference Sheet of Celsius and Fahrenheit .......91 ..............92 Appendix 2: Pipe Expanding Method...

  • Page 4: Part I : Technical Information

    1. Summary Indoor Unit: FLR30HP230V1R32AH FLR36HP230V1R32AH CAS30HP230V1R32AH CAS36HP230V1R32AH CAS09HP230V1R32AH LIV30HP230V1R32AO Outdoor Unit: LIV36HP230V1R32AO LIV09HP230V1R32AO Technical Information...

  • Page 5: Model List

    Model list: Outdoor product Model Product code Indoor model Indoor product code Outdoor model code LIV30HP230V1R32AO FLR30HP230V1R32AH LIV30HP230V1R32AO CB574W19100-T CN610N0400 CB574W19100 FLR30HP230V1R32AH LIV36HP230V1R32AO FLR36HP230V1R32AH LIV36HP230V1R32AO CB574W18100-Z CN610N0390 CB574W18100 FLR36HP230V1R32AH Indoor product Panel Panel product Outdoor product Model Product code Indoor model Outdoor model code model...

  • Page 6: Specifications

    2. Specifications GWH09AVDXE-D6DNA1A/O Model GKH(09)EB-D6DNA1A/I CB601W04600 Product Code (CN51000470) Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9100 Heating Capacity Btu/h 10500 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1950 Rated Cooling Current...
  • Page 7 Outdoor Unit Model GWH09AVDXE-D6DNA1A/O Outdoor Unit Product Code CB601W04600 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor Rated Load Amp (RLA) Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 8 LIV30HP230V1R32AO LIV36HP230V1R32AO Model CAS36HP230V1R32AH CAS30HP230V1R32AH Product Code CB574W19100-K CB574W18100-T Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 30000 33600 Heating Capacity Btu/h 30000 34000 Cooling Power Input 2600 3169 Heating Power Input 2750 2730 Cooling Current Input...
  • Page 9 Outdoor Unit Model LIV30HP230V1R32AO LIV36HP230V1R32AO Outdoor Unit Product Code CB574W19100 CB574W18100 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXFS-B221zX070S QXFS-D280zX070 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Twin Rotary Rotary Compressor Locked Rotor Amp (L.R.A) Compressor Rated Load Amp (RLA) 18.5...
  • Page 10 LIV30HP230V1R32AO LIV36HP230V1R32AO Model FLR36HP230V1R32AH FLR30HP230V1R32AH Product Code CB574W19100-T CB574W18100-Z Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 30000 33600 Heating Capacity Btu/h 30000 34000 Cooling Power Input 2626 2984 Heating Power Input 2793 2622 Cooling Current Input...
  • Page 11 Outdoor Unit Model LIV30HP230V1R32AO LIV36HP230V1R32AO Outdoor Unit Product Code CB574W19100 CB574W18100 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXFS-B221zX070S QXFS-D280zX070 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Twin Rotary Rotary Compressor Locked Rotor Amp (L.R.A) Compressor Rated Load Amp (RLA) 18.5...

  • Page 12: Outline Dimension Diagram

    3. Outline Dimension Diagram 3.1 Indoor Unit Cassette Type Unit: inch Model 30/36K 37 13/32 35 3/64 33 5/64 26 49/64 30 45/64 9 29/64 5 5/16 Unit: inch Model 24 13/32 22 53/64 22 7/16 19 7/8 21 21/32 10 7/16 5 33/64 20 55/64 20 55/64...
  • Page 13 Floor Ceiling Type Unit:inch Model 47 1/4 9 1/4 44 61/64 11 1/32 26 3/16 61 13/16 9 1/4 59 17/32 11 1/32 26 3/16 Technical Information...

  • Page 14: Outdoor Unit

    3.2 Outdoor Unit 31 11/16 13 1/64 34 3/8 14 51/64 Unit:inch 20 25/32 36 11/32 14 17/32 16 13/16 39 3/8 Unit:inch 24 1/64 Technical Information...

  • Page 15: Refrigerant System Diagram

    4. Refrigerant System Diagram COOLING Outdoor unit Indoor unit pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat Liquid exchanger pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe: 1/4"...

  • Page 16: Electrical Part

    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 louver for this model. ●...
  • Page 17 30/36K(CASSETTE) (OPTIONAL) (OPTIONAL) (OPTIONAL) GATE ROOM TUBE WIRED WATER LIQUID SENSOR CONTROL CONTROLLER TEMP. TEMP. PUMP LEVEL MOTOR SENSOR SENSOR SWITCH MAGNETIC TERMINAL RING BLOCK WH(BU) N(1) WATER-DTCT DOOR-C ROOM TUBE COM-MANUAL PUMP (DRY-C) (N1) JUMP COM-OUT RD(BN) DC-MOTOR UD-SWING2 UD-SWING1 AC-L DISP1 DISP2...
  • Page 18 ● Outdoor Unit OPTIONAL OPTIONAL WARNING BOTTOM OUTTUBE OUTROOM EXHAUST ELECTRONIC Please don't touch any terminal when the BAND EXPANSION TEMP. TEMP. TEMP. machine is running ,stopping or has been HEATER powered off for less than 30 minutes to SENSOR SENSOR SENSOR VALVE prevent the risk of electric shock ! WH(BU)

  • Page 19: Pcb Printed Diagram

    5.2 PCB Printed Diagram Indoor Unit Name Name Fuse Up&down swing terminal Interface of live and neutral wire Water full detection terminal Interface of fan 10 Interface of tube temperature sensor Interface of gate-control detection Interface of ambient temperature sensor Wired controller 12 Water pump control Terminal with outdoor unit...
  • Page 20 30K(FLOOR CEILING) 36K(FLOOR CEILING) Name Name Interface of gate control DC water pump Wired controller New wind valve Display interface AC pump Jumper cap Interface of cold plasma Interface of left & right swing motor 2 Communication interface Interface of up & down swing motor 2 Interface of netural wire Interface of left &...
  • Page 21 30/36K(CASSETTE) Name Name Neutral Wire Insertion Liquid Level Switch Needle Stand Live Wire Insertion Up & Down Swing Needle Stand 1 Communication Wire Insertion Up & Down Swing Needle Stand 2 Display Board Needle Stand Health Function Needle Stand Tube Temperature Sensor Needle Stand Water Pump Motor Needle Stand Room Temperature Sensor Needle Stand Brushless DC Motor Needle Stand...
  • Page 22 Outdoor Unit Name Name Earthing wire Electronic Expansion Valve Needle Stand (B) Live Wire Electronic Expansion Valve Needle Stand (A) Communication Wire Outdoor Fan Needle Stand Neutral Wire Temperature sensor Chassis Electric Heating Belt Needle Stand Overload Four-way Valve Needle Stand Compressor Needle Stand Two-way Valve Needle Stand EE flash drive...
  • Page 23 30/36K GRJW936-A Name Name Neutral wire Terminal of high pressure protection Earthing wire Temperature sensor Live wire 10 Overload Communication wire Terminal of electronic expansion valve 4-way valve 12 Terminal of DRED Electric heating belt of chassis 13 E disk (Reserved) DC fan 14 Terminal of compressor Technical Information...

  • Page 24: Function And Control

    6. Function and Control 6.1 Remote Controller Introduction Buttons on remote controller Quiet Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode X-FAN function Power limiting operation Set temperature Indoor ambient temp. TIMER ON / TIMER OFF On/Off Wifi...
  • Page 25 ● This mode indicator is not available for some models. to start health and air functions simultaneously; LCD displays " ● Cooling only unit won't receive heat mode signal. If setting heat " and " ". Press this button for the third time to quit health and air mode with remote controller, press "...

  • Page 26: Function Introduction For Combination Buttons

    ● For the model with one outdoor unit and two indoor units, if any ● Sleep 3 the sleep curve setting under Sleep mode by DIY; one of indoor units enters into power limiting function, the outdoor (1) Under Sleep 3 mode, press "Health" button for a long time, unit will enter into the set limiting power mode of indoor unit;...

  • Page 27: Night Mode

    Under energy-saving function, fan speed is defaulted at auto speed on for 3s; Once the reminder function is turned on, when the air and it can't be adjusted. conditioner has reached to the set time, the dual-8 nixie tube will flash about 30s when the unit is turned on each time to remind the Under energy-saving function, set temperature can't be adjusted.

  • Page 28: Replacement Of Batteries In Remote Controller

    FEEL function and " " will disappear. ● Please put the remote controller near user when this function is set. Do not put the remote controller near the object of high temperature or low temperature in order to avoid detecting inaccurate ambient temperature.When I FEEL function is turned on, the remote controller should be put within the area where indoor unit can receive the signal sent by the remote controller.

  • Page 29: Brief Description Of Models And Functions

    6.2 Brief Description of Models and Functions ●Indoor Unit General timer and clock timer functions are compatible by equipping remote controller with different functions. 1.Basic function of system (1)Cooling mode (6) Memory function memorize compensation temperature, off-peak energization value. (1) Under this mode, fan and swing operates at setting status. Memory content: mode, up&down swing, light, set temperature, set Temperature setting range is 16~30 fan speed, general timer (clock timer cant be memorized).
  • Page 30 power recovery, compressor can only be started up after 180+T s 3. Special Functions at least. Defrosting Control ① Conditions for starting defrosting (13) SE control mode The unit operates at SE status. After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for (14) X-fan mode When X-fan function is turned on, after turn off the unit, indoor fan...
  • Page 31 (1) 4-way valve power control under heating mode 3. Reducing frequency at normal speed and power turn-off: a. Starts the machine under heating mode, the 4-way valve will get If [T ] ≤T <[T frequency reducing temperature at normal speed of module Module frequency reducing power immediately.
  • Page 32 allowed to operate. If it still can't run automatically when the out-of- (b) Open-Circuit Detection: the compressor should be detected on step protection for compressor happens to stop working for 6 times open-circuit when it runs 3min (it needn’t 30s in succession, it needs to press ON/OFF to operate.

  • Page 33: Notes For Installation And Maintenance

    7. Notes for Installation and Maintenance Safety Precautions: Important! by yourself. Please read the safety precautions carefully before installation 11. For the air conditioner without plug, an air switch must be installed in the circuit. The air switch should be all-pole and maintenance.

  • Page 34: Safety Precautions For Installing And Relocating The Unit

    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 If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.

  • Page 35: Safety Operation Of Flammable Refrigerant

    Safety operation of flammable refrigerant Qualification of workers R32 refrigerant warning ● To realize the function of the air conditioner unit, a special Qualification of the working personnel for refrigerant circulates in the system. The used refrigerant is maintenance, service and repair operations the fluoride R32, which is specially cleaned.

  • Page 36: Safety Instructions For Transportation And Storage

    ● For appliances using FLAMMABLE REFRIGERANTS, Maintenance notes al l joints made in the installation betwe en parts of the ● Check whether the maintenance area or the room REFRIGERATING SYSTEM, with at least one part charged, shall area meet the requirement of the nameplate. be made in accordance with the following: - It’s only allowed to be operated in the rooms that meet the -A brazed, welded, or mechanical connection shall be made before...
  • Page 37 otherwise it may cause damage to the refrigerant sensor. Avoid intrinsically safe. using it in the environment with electromagnetic interference, ● Presence of fire extinguisher chemical substances (such as chemical plants, etc.), flammable gas, combustible and explosive gas and smog, etc. If any hot work is to be conducted on the refrigerating equipment or ●...
  • Page 38 fault exists that could compromise safety, then no electrical supply ● Removal and evacuation shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to When breaking into the refrigerant circuit to make repairs – or continue operation, an adequate temporary solution shall be used.

  • Page 39: Marking Of Equipment Using Signs

    is completely familiar with the equipment and all its detail. It is complete with pressure-relief valve and associated shut-off valves recommended good practice that all refrigerants are recovered in good working order. Empty recovery cylinders are evacuated safely. Prior to the task being carried out, an oil and refrigerant and,if possible cooled before recovery occurs.

  • Page 40: Storage Of Packed (Unsold) Equipment

    Storage of packed (unsold) equipment Storage package protection should be constructed such a way that mechanical damage to the equipment inside the package will not cause a leak of the REFRIGERANT CHARGE. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

  • Page 41: Main Tools For Installation And Maintenance

    Main Tools for Installation and Maintenance Measuring tape Screw driver Level meter Impact drill Universal meter Drill head Electric drill Electroprobe Inner hexagon Torque wrench Open-end wrench Electronic spanner leakage detector Pressure meter Pipe pliers Pipe pliers Vacuum pump Soldering appliance Pipe cutter Pipe expander Pipe bender...

  • Page 42: Product Introduction

    8. Product introduction 8.1 Outline of the Unit and Main Parts Cassette Type 1.Wired controller 2.Wireless controller 3.Front board 4.Liquid pipe 5.Gas pipe 6.Drain pipe 7.Binding tape 8.Connection pipe 9.Air flow flap Installation and Maintenance...

  • Page 43: Floor Ceiling Type

    Floor Ceiling Type 1.Wired controller 2.Wireless controller 3.Front board 4.Liquid pipe 5.Gas pipe 6.Drain pipe 7.Binding tape 8.Air filter 9.Guide louver The connection pipe,drain pipe,power cord for this unit should be prepared by the user. Note: Installation and Maintenance...

  • Page 44: Standard Accessories

    8.2 Standard Accessories Cassette Type Accessories Name Appearance Q'ty Usage Drain Hose To connect with the hard PVC drain pipe. Bolt with Washer To fix the installation paperboard on the unit. Installation Used for ceiling drilling. Paperboard Gasket Mounting Used to prevent gasket from falling off. Board Wireless To control the indoor unit.

  • Page 45: Installation

    9. Installation 9.1 Installation Preparation location before installation. (8) Indoor unit, power cord, connecting wires should be at 1. Notice on Installation least 1m from television and radio. This is to prevent image (1) When installing an outdoor unit with single or double fans, interference or noise (Even at a distance of 1m, a very hold the handle and then lift it up slowly (Do not touch the strong electric wave may still generate noise).
  • Page 46 3) When outdoor units are installed in rows. (mm) — — ≥100 — — — A,B,C — ≥300 ≥100 ≥100 — — — — ≥100 — — ≥1000 A,B,C,E — ≥300 ≥150 ≥150 — ≥1000 — — — — ≥1000 —...

  • Page 47: Unit Installation

    ● Cassette Type: ● Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt positions from the installation template. With a concrete drill, drill for 12.7 mm diameter holes. ● Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.
  • Page 48 screws on the hanger to prevent the indoor unit from moving. 5) Reinstall and tighten the right and left side panels. ● Floor type 2. Floor Ceiling Type Installation (1) Preparation for Installing the Indoor Unit 1) Dismantle the clasp in the left and right grille and take down the screws.

  • Page 49: Installation For Outdoor Unit

    4. Installation for Outdoor Unit (1) If the outdoor unit is installed on a solid ground such as concrete, use M10 screw bolts and nuts to secure the unit and make sure the unit stands erect and level. (2) Do not install it on top of the building. (3) If it vibrates and causes noise, please add rubber cushion ●...
  • Page 50 ● Floor Ceiling type pipe back on the pipeline and fix it with adhesive tape. (4) Connection Pipe of Indoor and Outdoor Units NOTES! ● Connect the pipe to the unit. Please follow the instructions stated in the figures below. Use both spanner and torque wrench.
  • Page 51 assembly should be kept closed,otherwise evacuation would Ф1/4 15-30 fail. Ф3/8 35-40 The evacuation duration depends on the unit's capacity Ф1/2 45-50 generally. Ф5/8 60-65 Model Time(min) Ф3/4 70-75 Ф7/8 80-85 30/36K(EC) 36K(DC) Screw on the flare nut of the flaring connecting pipe on the 30K(DB) outdoor unit valve.

  • Page 52: Installation Of Drain Pipe

    percentage of gas (25% maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/ extinguished.
  • Page 53 pipe. (1) Connect the extension auxiliary pipe to the local piping. (3) Install the drain piping as shown and take measures against (2) Prepare the local piping at the connection point for the drain condensation.Improperly rigged piping could lead to leaks and pipe, as shown in the installation drawings.
  • Page 54 NOTES! ● Specifications of the converging drain pipes should be applicable to the operating capacity of the units. (3) Drain branch should be connected to the vertical or horizontal part of the main drain pipe. (4) Horizontal pipe should not be connected to the vertical pipe that is on the same level.

  • Page 55: Electrical Installation

    and loose the hexagon screw bolts on the 4 fasteners to the ● Circuit of the decorative front panel. maximum. The position marked with "PIPING SIDE" on the front ● Connect the front panel to the main body through the panel will direct right at the pipe mouth of the indoor unit.
  • Page 56 25mm of the insulation layer. not change the length and terminals of the power cables. If you want to change the power cables, please contact Gree's 2) Use a screwdriver to unscrew the terminal screw on the local service center.

  • Page 57: Check After Installation

    N(1) green white black (yellow- (brown) (blue) green) (3) How to connect the connection wire and power cord: Outdoor unit connection Lead the connection wire and power cord through the insulation tube. Then fix the wires with wire clamps (as shown in the next ●...

  • Page 58: Test Running

    Does water drainage go well? Condensate, water drops may occur. Is the voltage consistent with that stated on The unit may fail or its components the nameplate? may get burned. The unit may fail or its components Are the wires and pipes installed correctly? may get burned.

  • Page 59: Maintenance

    10. Maintenance 10.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3. Jumper cap is damaged; 4.
  • Page 60 Error AC status Possible causes Malfunction name code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 61 Error AC status Possible causes Malfunction name code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser fan stop operation, while indoor fan 2. Temperature sensor wire of outdoor unit is damaged; short temperature sensor is operates;...
  • Page 62 Error AC status Possible causes Malfunction name code Undefined outdoor unit Cool: compressor and outdoor 1. Outdoor ambient temperature exceeds the operation range of unit (eg: less than-20 C or more than 60 C for cooling; more error fan stops operation, while indoor than 30 C for heating);...
  • Page 63 Error AC status Possible causes Malfunction name code DC bus voltage drop Cool/Dry: compressor stops The power voltage is unstable. malfunction operation, while indoor fan operates; Heat: all loads stops operation. Current detection Cool: compressor and outdoor 1. Is the complete unit lacking of refrigerant? malfunction of unit fan stops operation, while indoor 2.

  • Page 64: Procedure Of Troubleshooting

    10.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap. Eliminate malfunction Check whether the...

  • Page 65: Communication Malfunction

    2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before the malfunction occurs.
  • Page 66 , over-phase current of compressor 3. IPM protection Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit...
  • Page 67 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE:The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 68 5.Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well. Insert the temperature sensor well Eliminate...
  • Page 69 6.High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection Normal protection.
  • Page 70 7.Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE:The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate terminal OFAN is...
  • Page 71 8.Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is Check whether the compressor unbalanced.
  • Page 72 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE:The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 73 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate smoothly.
  • Page 74 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 75 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.

  • Page 76: Troubleshooting For Normal Malfunction

    10.3 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 connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 77 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of...

  • Page 78: Removal Procedure

    11. Removal Procedure 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Cassette Type Removal of fan and motor Note: Before removing the motor, power must be cut off. Step Picture Work instruction Turn off the power supply of indoor unit.
  • Page 79 Removal of fan and motor Note: Before removing the motor, power must be cut off. Step Picture Work instruction Use a screwdriver to remove the 4. Remove the fan. clamping band of motor. Then remove the fan. Use a screwdriver to unscrew 5.
  • Page 80 Removal of fan and motor Note: Before removing the motor, power must be cut off. Step Picture Work instruction Direct the 4 corners of water tray to the 4 corners of the unit and then press them. Use a screwdriver to tighten the screws in the 4 corners.
  • Page 81 Removal and installation of drain pump Step Picture Work instruction 5. Remove the drain pipe and Take out the drain pipe and use loosen the screws of water a screwdriver to loosen the pump. screws of water pump. Remove and replace the Remove the pump and replace pump.
  • Page 82 Floor Ceiling Type Step Procedure 1.Remove the sub-assembly of front grill. ●Twist off the 2 hooks of the grill and the screws of the hooks. ●Open the grill and remove 2 lower clamps. Then remove the grill. Note: Before removal, make sure power is cut off. During the removal procedure, take good care of all the components.
  • Page 83 Step Procedure 4.Removal of air guide louver ●Remove the air guide louver from its supporting assembly. Then take off the connectors from the swing motor. (As shown in the picture, the lines indicate the supporting assembly). Note: Before removal, make sure power is cut off. During the removal procedure, take good care of all the components, especially the connectors of air guide louver.
  • Page 84 Step Procedure 7.Removal of display panel and fan assembly ●First remove the display panel, next the bracket and then the swing motor mounting plate. Note: Before removal, make sure power is cut off. During the removal procedure, take good care of all the components.

  • Page 85: Removal Procedure Of Outdoor Unit

    11.2 Removal Procedure of Outdoor Unit Warning: Before disassembly, please disconnect the power supply. Before disconnection the pipeline, please discharge all the refrigerant according to the local laws and regulations. Step Procedure 1. Before disassembly 2. Remove Cover of Pass Wire and valve cover Cover of Pass Wire Remove the screws fixing Cover of Pass Wire, valve cover and then remove them.
  • Page 86 Step Procedure 4. Remove front panel assy and Rear Grill Remove connection screws connecting the front panel assy and Rear Grill, and then remove the front panel assy and Rear Grill. Rear Grill Front panel 5. Remove right side plate assy and left side plate Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right side...
  • Page 87 Step Procedure 7. Remove electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard are removed and the electrical box assy are removed. 8. Remove motor Remove the screws fixing the motor and then remove the motor.
  • Page 88 Step Procedure 10. Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Discharge the refrigerant completely befor unsoldering; welding joint when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by...
  • Page 89 Step Procedure 13. Remove electronic expansion electric expand valve Unsolder the welding joints connecting electronic fitting expansion valve assy then remove the electronic electric expansion expansion valve assy. valve sub-Assy welding joint 14. Remove clapboard assy clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy.
  • Page 90 Warning: Before disassembly, please disconnect the power supply. Before disconnection the pipeline, please discharge all the refrigerant according to the local laws and regulations. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and then remove them.
  • Page 91 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right...
  • Page 92 Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the Motor motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 93 Step Procedure 10. Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...

  • Page 94: Appendix

    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 Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（ temperature（ temperature（ F） （ F） （ C） F）...

  • Page 95: Appendix 2: Pipe Expanding Method

    Appendix 2: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 96: Appendix 3: List Of Resistance For Temperature Sensor

    Appendix 3: 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) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32 14.36 6.28...
  • Page 97 JF00305725 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 For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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