Tosot TW09HXP2A1A Service Manual
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Tosot TW09HXP2A1A Service Manual

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SERVICE
MANUAL
MODELS:
TW09HXP2A1A
TW12HXP2A1A
TW09HXP2A1D
TW12HXP2A1D
TW18HXP2A1D
TW24HXP2A1D

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Summary of Contents for Tosot TW09HXP2A1A

  • Page 1 SERVICE MANUAL MODELS: TW09HXP2A1A TW12HXP2A1A TW09HXP2A1D TW12HXP2A1D TW18HXP2A1D TW24HXP2A1D...

  • Page 2: Table Of Contents

    Table of Contents Service Manual Part I : Technical Information ........1 1. Summary ................. 1 2. Specifications ............... 3 2.1 Specification Sheet ....................3 2.2 Capacity Variation Ratio According to Temperature .........15 2.3 Cooling and Heating Data Sheet in Rated Frequency .......16 3.
  • Page 3 Service Manual 8.6 Installation of Outdoor unit .................48 8.7 Vacuum Pumping and Leak Detection ............50 8.8 Check after Installation and Test operation ..........50 9. Maintenance ..............51 9.1 Error Code List ......................51 9.2 Procedure of Troubleshooting ................58 9.3 Troubleshooting for Normal Malfunction ............71 10.
  • Page 4 1. Summary Service Manual Indoor Unit: A1 panel A4 panel Outdoor Unit: TW09HXP2A1AO TW09HXP2A1DO TW12HXP2A1DO TW12HXP2A1AO GWC09AGCXB-D3DNA1A/O TW18HXP2A1DO TW24HXP2A1DO Remote Controller: YAP1F7F(WiFi) ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP Technical Information...
  • Page 5 1. Summary Service Manual Model list: Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller 1 GWC09AGCXD-A3DNA1A CB385015400 GWC09AGCXD-A3DNA1A/I CB385N15400 GWC09AGCXD-A3DNA1A/O CB385W15400 2 GWH09AGCXD-A3DNA1A CB385015300 TW09HXP2A1AI CB385N15300 TW09HXP2A1AO CB385W15300 3 GWH09AGCXD-A3DNA4A CB558009200 GWH09AGCXD-A3DNA4A/I CB558N09200 4 GWC09AGCXB-D3DNA1A CB385015500 GWC09AGCXB-D3DNA1A/I CB385N15500 GWC09AGCXB-D3DNA1A/O CB385W15500 5 GWH09AGCXD-D3DNA1A CB385015600 TW09HXP2A1DI CB385N15600...

  • Page 6: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet GWH09AGCXD-A3DNA1A Model GWC09AGCXD-A3DNA1A GWH09AGCXD-A3DNA4A CB385015300 Product Code CB385015400 CB558009200 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 9100 9100 Heating Capacity Btu/h 10000 Cooling Power Input Heating Power Input Cooling Power Current 6.72...
  • Page 7 2. Specifications Service Manual TW09HXP2A1AO Outdoor Unit Model GWC09AGCXD-A3DNA1A/O Outdoor Unit Product Code CB385W15400 CB385W15300 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD COMPRESSOR CO., LTD Compressor Model QXF-B103zH170E QXF-B103zH170E Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor LRA. Compressor RLA 12.5 12.5...
  • Page 8 2. Specifications Service Manual GWH09AGCXD-D3DNA1A Model GWC09AGCXB-D3DNA1A GWH09AGCXD-D3DNA4A CB385015600 Product Code CB385015500 CB558009400 Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 9000 9100 Heating Capacity Btu/h 10500 Cooling Power Input Heating Power Input Cooling Power Current 3.45 Heating Power Current...
  • Page 9 2. Specifications Service Manual TW09HXP2A1DO Outdoor Unit Model GWC09AGCXB-D3DNA1A/O Outdoor Unit Product Code CB385W15500 CB385W15600 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO.,LTD COMPRESSOR CO., LTD Compressor Model QXF-A082zC170 QXF-B103zH170E Compressor Oil ZE-G;ES RB68GX or equivalent FW68DA Compressor Type Rotary Rotary Compressor LRA.
  • Page 10 2. Specifications Service Manual GWH12AGCXD-D3DNA1A Model GWC12AGCXD-D3DNA1A GWH12AGCXD-D3DNA4A CB385016600 Product Code CB385016800 CB558009300 Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 12000 12000 Heating Capacity Btu/h 12000 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input...
  • Page 11 2. Specifications Service Manual TW12HXP2A1DO Outdoor Unit Model GWC12AGCXD-D3DNA1A/O Outdoor Unit Product Code CB385W16800 CB385W16600 Shanghai Highly Electrical Shanghai Highly Electrical Compressor Manufacturer Appliances Co.,Ltd. Appliances Co.,Ltd. Compressor Model GSD098XKUA7JL6B GSD098XKUA7JL6B ACS-68R or equiva le nt ACS-68R or equiva le nt Compressor Oil 320±20ml 320±20ml...
  • Page 12 2. Specifications Service Manual GWH12AGCXD-A3DNA1A Model GWC12AGCXD-A3DNA1A GWH12AGCXD-A3DNA4A CB385016700 Product Code CB385016500 CB558009100 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 12000 12000 Heating Capacity Btu/h 12000 Cooling Power Input Heating Power Input Cooling Power Current 10.4 10.4...
  • Page 13 2. Specifications Service Manual TW12HXP2A1AO Outdoor Unit Model GWC12AGCXD-A3DNA1A/O Outdoor Unit Product Code CB385W16500 CB385W16700 Shanghai Highly Electrical Shanghai Highly Electrical Compressor Manufacturer Appliances Co.,Ltd. Appliances Co.,Ltd. Compressor Model GSD098XKUA7JL6B GSD098XKUA7JL6B ACS-68R or equiva le nt ACS-68R or equiva le nt Compressor Oil 320±20ml 320±20ml...
  • Page 14 2. Specifications Service Manual GWH18AGDXF-D3DNA1A Model GWC18AGDXF-D3DNA1A GWH18AGDXF-D3DNA4A CB385017000 Product Code CB385016900 CB558008900 Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 18000 18000 Heating Capacity Btu/h 18000 Cooling Power Input 1384 1384 Heating Power Input 1384...
  • Page 15 2. Specifications Service Manual TW18HXP2A1DO Outdoor Unit Model GWC18AGDXF-D3DNA1A/O Outdoor Unit Product Code CB385W16900 CB385W17000 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO. LTD. COMPRESSOR CO. LTD. Compressor Model QXF-M130zF170 QXF-M130zF170 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
  • Page 16 2. Specifications Service Manual GWH24AGEXH-D3DNA1A Model GWC24AGEXH-D3DNA1A GWH24AGEXH-D3DNA4A CB385016300 Product Code CB385016400 CB558009000 Rated Voltage 208/230 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity Btu/h 22000 22000 Heating Capacity Btu/h 24000 Cooling Power Input 1679 1679 Heating Power Input 1870...
  • Page 17 2. Specifications Service Manual TW24HXP2A1DO Outdoor Unit Model GWC24AGEXH-D3DNA1A/O Outdoor Unit Product Code CB385W16400 CB385W16300 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD COMPRESSOR CO., LTD Compressor Model QXFS-M180zX170 QXFS-M180zX170 Compressor Oil Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input 1350 1350...

  • Page 18: Capacity Variation Ratio According To Temperature

    2. Specifications Service Manual 2.2 Capacity Variation Ratio According to Temperature 09K(115V~) / GWH09AGCXD-D3DNA1A / GWH09AGCXD-D3DNA4A / GWH18AGDXF-D3DNA1A 09K(115V~) of cooling operation ambient temperature range is -4 F~122 Cooling: Heating: 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...

  • Page 19: Cooling And Heating Data Sheet In Rated Frequency

    2. Specifications Service Manual GWC24AGEXH-D3DNA1A of cooling operation ambient temperature range is 0 F~122 Cooling: Heating: 120% 120% 100% 100% 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:24.6 ft Pipe length: 24.6 ft -20 -4...

  • Page 20: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit Φ2 11/64 6 7/64* 4 36/64* Φ2 11/64 1 37/64 1 37/64 7 1/64* 3 32/64* Φ2 3/4 2 23/64* 6 57/64* Unit:inch Model 32 31/64 11 17/32 7 23/32 4 29/64 21 11/32 6 11/16 38 21/32...

  • Page 21: Outdoor Unit

    3. Outline Dimension Diagram Service Manual 3.2 Outdoor Unit GWC09AGCXB-D3DNA1A/O 11 13/16 26 37/64 12 63/64 28 13/16 17 29/32 Unit: inch GWC09AGCXD-A3DNA1A/O TW09HXP2A1AO TW09HXP2A1DO GWC12AGCXD-D3DNA1A/O GWH12AGCXD- D3DNA1A/O GWC12AGCXD-A3DNA1A/O TW12HXP2A1AO 11 13/16 29 21/64 13 25/32 31 37/64 Unit: inch 20 5/32 Technical Information...
  • Page 22 3. Outline Dimension Diagram Service Manual TW18HXP2A1DO GWC18AGDXF-D3DNA1A/O 13 25/64 15 53/64 37 23/32 Unit: inch 22 7/16 GWC24AGEXH-D3DNA1A/O TW24HXP2A1DO 36 11/32 14 17/32 16 13/16 39 3/8 Unit: inch 24 1/64 Technical Information...

  • Page 23: Refrigerant System Diagram

    4. Refrigerant System Diagram Service Manual Cooling model Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Heat Compressor exchanger (condenser) Liquid pipe side Valve Electron Capillary Strainer expansion valve COOLING Cooling and heating model Outdoor unit Indoor unit Gas pipe...

  • Page 24: Electrical Part

    5. Electrical Part Service Manual 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 25 5. Electrical Part Service Manual GWC18AGDXF-D3DNA1A/I TW18HXP2A1DI GWH18AGDXF-D3DNA4A/I GWC24AGEXH-D3DNA1A/I TW24HXP2A1DI GWH24AGEXH-D3DNA4A/I 600007064197 Technical Information...
  • Page 26 5. Electrical Part Service Manual ● Outdoor Unit GWC09AGCXD-A3DNA1A/O TW09HXP2A1AO GWC12AGCXD-A3DNA1A/O TW12HXP2A1AO WARNING OPTIONAL OPTIONAL OPTIONAL Bottom OUTROOM EXHAUST 4-WAY ELECTRONIC OUTTUBE Please don't touch any Band EXPANSION VALVE TEMP. TEMP. TEMP. VALVE Heater terminal when the machine SENSOR SENSOR SENSOR is running ,stopping or has been powered off for less than 30 minutes to prevent...
  • Page 27 5. Electrical Part Service Manual TW18HXP2A1DO TW24HXP2A1DO GWC18AGDXF-D3DNA1A/O GWC24AGEXH-D3DNA1A/O WARNING OPTIONAL OPTIONAL Please don't touch any BOTTOM OUTROOM EXHAUST ELECTRONIC OUTTUBE terminal when the machine is BAND EXPANSION TEMP. TEMP. TEMP. running ,stopping or has been HEATER SENSOR SENSOR SENSOR VALVE powered off for less than 30 minutes to prevent the risk...

  • Page 28: Pcb Printed Diagram

    5. Electrical Part Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Name Earthing wire Up & down swing 2 DC fan 10 Up & down swing 1 Live wire Display board / WiFi Fuse 12 Temperature sensor Neutral wire 13 Door control / Dry contact Communication wire 14 Wired controller...
  • Page 29 5. Electrical Part Service Manual Outdoor Unit TW09HXP2A1AO TW12HXP2A1AO GWC09AGCXD-A3DNA1A/O GWC12AGCXD-A3DNA1A/O Name Name Reactor wiring terminal 4-way valve Three-phase terminal of compressor Electric heating belt of chasssis Terminal of indoor unit and outdoor unit Temperature sensor communication Overload 10 Terminal of power supply neutral wire Electronic expansion valve Terminal of power supply live wire Outdoor fan...
  • Page 30 5. Electrical Part Service Manual TW09HXP2A1DO TW12HXP2A1DO GWC09AGCXB-D3DNA1A/O GWC12AGCXD-D3DNA1A/O Name Name Earthing wire terminal Fan motor terminal Live wire terminal Electron expansion valve terminal Neutral wire terminal Compressor overload terminal Communication terminal 10 Temperature sensor terminal 4-way valve terminal E store terminal Electric heating terminal of chassis 12 Compressor terminal Technical Information...
  • Page 31 5. Electrical Part Service Manual GWC18AGDXF-D3DNA1A/O Name Name Eathing wire Overload interface of compressor Live wire 10 Terminal of compressor Neutral wire Interface of program debugs Communication cable 12 DRED interface 4-way valve 13 Terminal of electronic expansion valve Electric heating belt of chassis / 2-way valve 14 EE flash drive DC motor 15 Computer monitoring interface...
  • Page 32 5. Electrical Part Service Manual TW18HXP2A1DO Name Name Eathing wire Overload interface of compressor Live wire 10 Terminal of compressor Neutral wire Interface of program debugs Communication cable 12 DRED interface 4-way valve 13 Terminal of electronic expansion valve Electric heating belt of chassis / 2-way valve 14 EE flash drive DC motor 15 Computer monitoring interface...
  • Page 33 5. Electrical Part Service Manual GWC24AGEXH-D3DNA1A/O TW24HXP2A1DO Name Name Neutral wire Terminal of high pressure protection Grounding wire Temperature sensor Live wire 10 Overload interface of compressor Communication wire Terminal of electronic expansion valve 4-way valve 12 Terminal of DRED Electric heating belt of chassis 13 E disk(Reserved) Outdoor fan...

  • Page 34: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction of YAP1F7F(WiFi) Buttons on remote controller Introduction for icons on display screen I feel Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode Sleep mode 8℃...
  • Page 35 6. Function and Control Service Manual blowing angle. Having set X-FAN function off: After turning off the unit by pressing ON/OFF button, the complete unit will be off directly. ● After selecting cool mode, air conditioner will operate under cool mode. Press " " or " " button to adjust set temperature. 4.
  • Page 36 6. Function and Control Service Manual fixed angle. Press this button to start I FEEL function and " " will be displayed on the remote controller. After this function is set, the ● Hold " " button above 2s to set your required swing angle. remote controller will send the detected ambient temperature When reaching your required angle, release the button.
  • Page 37 6. Function and Control Service Manual (3) At this time, 1hour will be automatically increased at the timer ambient temperature on indoor unit's display. The setting on position on the remote control, (that are "2hours" or "3hours" or remote controller is selected circularly as below: "8hours"), the place of setting temperature "88"...
  • Page 38 6. Function and Control Service Manual function. When child lock function is on, " " icon is displayed on ● If the current power is lower than the maximum power of remote controller. If you operate the remote controller, the " "...

  • Page 39: Ewpe Smart App Operation Manual

    6. Function and Control Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud Intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version...

  • Page 40: Brief Description Of Modes And Functions

    6. Function and Control Service Manual 6.4 Brief Description of Modes and Functions 1. Basic function of system (2) Auto button (1) Cooling mode If press this auto button when turning off the unit, the complete unit will operate at auto mode. Indoor fan operates at auto fan (1) Under this mode, fan and swing operates at setting status.
  • Page 41 6. Function and Control Service Manual Within 5min after energizing (unit ON or OFF status is ok), stop operation. Indoor fan can select to operate at high, medium, continuously press LIGHT button for 3 times within 3s to enter low or auto fan speed. Temperature setting range is 16~30 refrigerant recycling mode;...
  • Page 42 6. Function and Control Service Manual Outdoor Units (6) Under the condition that compressor is turned on, when unit is changed to heating mode from cooling or drying mode, 4-way 1. Cooling mode valve will be energized in 2~3mins delay. Working condition and process of cooling mode: Note: Tcompensation is determined by IDU and ODU.

  • Page 43: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than 3mm. Please read the safety precautions carefully before installa- tion and maintenance.
  • Page 44 7. Notes for Installation and Maintenance 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 5. When installing the unit, make sure that connection refrigerant circuit free from air or substances other than the pipe is securely connected before the compressor starts specified refrigerant.
  • Page 45 7. Notes for Installation and Maintenance Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers...

  • Page 46: Installation

    8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall At least 15cm Space to the wall At least 15cm Space to the obstruction At least 50cm Drainage pipe Installation and Maintenance...
  • Page 47 8. Installation Service Manual Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor...

  • Page 48: Installation Parts-Checking

    8. Installation Service Manual 8.2 Installation Parts-checking unit. (4) Make sure that the installation follows the requirement of Name installation dimension diagram. Indoor unit (5) Select a location which is out of reach for children and far away from animals or plants.If it is unavoidable, please add fence Outdoor unit for safety purpose.
  • Page 49 8. Installation Service Manual the holes. torque wrench on the union nut. Tighten the union nut with torque (3) Fix the wall-mounting frame on the wall with tapping screws wrench. (As show in Fig.6) and then check if the frame is firmly installed by pulling the frame. (4) Wrap the indoor pipe and joint of connection pipe with If the plastic expansion particle is loose, please drill another fixing insulating pipe, and then wrap it with tape.

  • Page 50: Installation Of Outdoor Unit

    8. Installation Service Manual 7. Connect Wire of Indoor Unit Indoor and (1) Open the panel, remove the screw on the wiring cover and outdoor power cord Indoor unit then take down the cover. (As show in Fig.11) pipe Screw Panel Liquid pipe...
  • Page 51 8. Installation Service Manual (4) For the unit with cooling capacity of 2300W~5000W, 6 cable cross expansion screws are needed; for the unit with cooling capacity plate sub-assy of 6000W~8000W, 8 expansion screws are needed; for the 09K(115V~) / 12K(115V~): unit with cooling capacity of 10000W~16000W, 10 expansion N(1) L(3)

  • Page 52: Vacuum Pumping And Leak Detection

    8. Installation Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldnt be higher Check if there is leakage with leakage detector. than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) With soap water: (2) Slant the drain hose slightly downwards.

  • Page 53: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display During cooling and drying Possible reasons: operation, except indoor fan operates, all loads 1. Refrigerant was superabundant; High pressure stop operation.
  • Page 54 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Loosening or bad contact of indoor ambient temp. sensor and mainboard terminal. During cooling and drying operation, indoor Indoor ambient 2. Components in mainboard fell down leads unit operates while other loads will stop;...
  • Page 55 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than During cooling and drying operation, compressor 265VAC, turn on the unit after the supply voltage Voltage for DC bus-bar is will stop while indoor fan will operate;...
  • Page 56 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display During cooling and drying operation, compressor Charging will stop while indoor fan will operate; Refer to the part three—charging malfunction malfunction of capacitor analysis of capacitor During heating operation, the complete unit will stop...
  • Page 57 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display compressor stop operation and Outdoor fan To protect the electronical components when power protection motor will stop 30s latter , 3 minutes latter fan detect high power motor and compressor will restart Indoor unit and outdoor...
  • Page 58 9. Maintenance Service Manual Display Method of Indoor Unit Malfunction Name A/C status Possible Causes Dual-8 Code Display 1. Main board of indoor unit is damaged; Malfunction of detecting Loads operate normally, while the unit can’t be 2. Detection board is damaged; normally controlled by APP.
  • Page 59 9. Maintenance Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...

  • Page 60: Procedure Of Troubleshooting

    9. Maintenance Service Manual 9.2 Procedure of Troubleshooting 1. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ●...
  • Page 61 9. Maintenance Service Manual 2. Communication malfunction E6 Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: Start If the unit is operation...
  • Page 62 9. Maintenance Service Manual 3. IPM protection H5 , over-phase current of compressor P5 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection 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 Malfunction diagnosis process: Turn on the unit...
  • Page 63 9. Maintenance Service Manual 4. Overload protection of compressor H3, high discharge temperature protection of compressor E4 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector Malfunction diagnosis process: After the unit de-energized...
  • Page 64 9. Maintenance Service Manual 5. Malfunction of Temperature Sensor F1, F2 Main detection points: (1) connection terminal (2) temperature sensor (3) main board Malfunction diagnosis process: Start Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction...
  • Page 65 9. Maintenance Service Manual 6. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit Malfunction diagnosis process: Overload protection, high temperature prevention protection Normal protection.
  • Page 66 9. Maintenance Service Manual 7. 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 67 9. Maintenance Service Manual 8. Start-up failure LC (following AP1 for outdoor unit control board) Main detection points: (1) compressor wire (2) compressor (3) charging amount of refrigerant Malfunction diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes? Does startup fail?
  • Page 68 9. Maintenance Service Manual 9. Desynchronization diagnosis for compressor H7 (AP1 hereinafter refers to the control board of the outdoor unit) Main detection points: (1) system pressure (2) power supply voltage Malfunction diagnosis process: Synchronism after Synchronism energize the unit occurred during and start it operation...
  • Page 69 9. Maintenance Service Manual 10. Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 70 9. Maintenance Service Manual 11. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
  • Page 71 9. Maintenance Service Manual 12. Capacity charging malfunction PU (AP1 below means control board of outdoor unit)Main detection points: Main detection points: (1) wiring board XT (2) reactor Malfunction diagnosis process: Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor...
  • Page 72 9. Maintenance Service Manual 13. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected Replace the detecting plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...

  • Page 73: Troubleshooting For Normal Malfunction

    9. Maintenance 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 it's due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 74 9. Maintenance 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 diagram make sure all wiring terminals are connected connection firmly Measure the capacity of fan capacitor with an...

  • Page 75: Exploded View And Parts List

    10. Exploded View and Parts List Service Manual 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. Installation and Maintenance...
  • Page 76 10. Exploded View and Parts List Service Manual Description Description Front Panel Drainage Hose Guide Louver (upper) Stepping Motor Guide Louver (lower) Stepping Motor Screw Cover Crank Front Case Air Louver(auto) Filter Sub-Assy Sweeping connecting rod Helicoid Tongue Stepping Motor Air Louver(left) Air Louver(right) Left Axile Bush...
  • Page 77 10. Exploded View and Parts List Service Manual ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP Installation and Maintenance...
  • Page 78 10. Exploded View and Parts List Service Manual Description Description Front Panel Electric Box Front Case Assy Main Board Guide Louver Sub-assy 1 Jumper Guide Louver Sub-assy 2 Stepping Motor Plug Pin Stepping Motor Left Axile Bush Crank Rear Case Drainage Hose Cross Flow Fan Filter Sub-Assy...
  • Page 79 10. Exploded View and Parts List Service Manual 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. Installation and Maintenance...
  • Page 80 10. Exploded View and Parts List Service Manual Description Description Front Panel Connecting pipe clamp Front Case Assy Rubber Plug (Water Tray) Screw Cover Crank Front Case Stepping Motor Plug Pin Stepping Motor Guide Louver Sub-assy 1 Stepping Motor Guide Louver Sub-assy 2 Sweep Blade Sweeping Connecting Rod Air Louver(Automatic)

  • Page 81: Outdoor Unit

    10. Exploded View and Parts List Service Manual 10.2 Outdoor Unit GWC09AGCXB-D3DNA1A/O 19 18 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 82 10. Exploded View and Parts List Service Manual Description Description Coping Compressor and Fittings Condenser Left Border Plate Chassis Sub-assy Inhalation Tube Motor Support Sponge (Condenser) Brushless DC Motor Tempreture Sensor Support Axial Flow Fan Condenser Assy Cabinet Tempreture Sensor Sleeving Front Grill Sensor Insert B Drainage Joint (ODU)
  • Page 83 10. Exploded View and Parts List Service Manual GWC09AGCXD-A3DNA1A/O GWC12AGCXD-A3DNA1A/O GWC12AGCXD-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 84 10. Exploded View and Parts List Service Manual Description Description Top Cover Assy Compressor and Fittings Support Board(Condenser) Chassis Sub-assy Inhalation Tube Sub-assy Motor Support Sponge(Condenser) Brushless DC Motor Temperature Sensor Support Axial Flow Fan Condenser Assy Cabinet Temp Sensor Sleeving Front Grill Sensor Insert Drainage Joint(ODU)
  • Page 85 10. Exploded View and Parts List Service Manual TW09HXP2A1AO TW09HXP2A1DO TW12HXP2A1AO TW12HXP2A1DO The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 86 10. Exploded View and Parts List Service Manual Description Description Top Cover Assy Compressor and Fittings Support Board(Condenser) Chassis Sub-assy 4-way valve Sub-assy Motor Support Sponge(Condenser) Brushless DC Motor Temperature Sensor Support Axial Flow Fan Condenser Assy Cabinet Temp Sensor Sleeving Front Grill Sensor Insert Drainage Joint(ODU)
  • Page 87 10. Exploded View and Parts List Service Manual GWC18AGDXF-D3DNA1A/O 9 10 11 The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 88 10. Exploded View and Parts List Service Manual Description Description Front Grill Inhalation Tube Sub-assy Cabinet Discharge Tube Sub-assy Axial Flow Fan Condenser Assy Chassis Sub-assy Clapboard Assy Compressor and fittings Motor Support Sub-Assy Electron expansion valve Brushless DC Motor Electric Expand Valve Fitting Top Cover Assy Right Side Plate Assy...
  • Page 89 10. Exploded View and Parts List Service Manual TW18HXP2A1DO 9 10 11 The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 90 10. Exploded View and Parts List Service Manual Description Description Front Grill 4-way valve Assy Cabinet Condenser Assy Axial Flow Fan Clapboard Assy Chassis Sub-assy Motor Support Sub-Assy Compressor and fittings Brushless DC Motor Electron expansion valve Top Cover Assy Electric Expand Valve Fitting Left Side Plate Right Side Plate Assy...
  • Page 91 10. Exploded View and Parts List Service Manual GWC24AGEXH-D3DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 92 10. Exploded View and Parts List Service Manual Description Description Front Grill Union Nut Cabinet Union Nut Axial Flow Fan Handle Brushless DC Motor Support Chassis Sub-assy Valve Support Baffle Drainage Plug Terminal Board Drainage Connecter Rear Grill Cushioned Nut Electronic Expansion Valve assy Clap Board Assy Temperature Sensor...
  • Page 93 10. Exploded View and Parts List Service Manual TW24HXP2A1DO The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 94 10. Exploded View and Parts List Service Manual Description Description Front Grill Union Nut Cabinet Union Nut Axial Flow Fan Handle Brushless DC Motor Support Chassis Sub-assy Valve Support Baffle Drainage Plug Terminal Board Drainage Connecter Rear Grill Cushioned Nut Electronic Expansion Valve assy Clap Board Assy Temperature Sensor...

  • Page 95: Removal Procedure

    11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure Before disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1. Remove filter Filter Hold the handle on the filter, pull it upwards to let the clasp at the top part of the filter loose, push it forwards and then the filter can be pulled out.
  • Page 96 11. Removal Procedure Service Manual Step Procedure Panel rotation 3. Remove panel Panel Display Screws Open the front panel; separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the panel.
  • Page 97 11. Removal Procedure Service Manual Step Procedure 6. Remove electric box assy Remove the screw fixing electric box assy. Step motor Indoor tube Grounding temperature sensor Electric box assy screw Main board ① Cut off the wire binder and pull out the indoor tube temperature sensor.
  • Page 98 11. Removal Procedure Service Manual Step Procedure 7. Remove panel Remove 3 screws fixing evaporator assy. At the back of the unit, Loosen the clasp of the connection pipe clamp and then remove the connection pipe clamp. First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 99 11. Removal Procedure Service Manual Step Procedure 8. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screw Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. 9.

  • Page 100: Removal Procedure Of Outdoor Unit

    11. Removal Procedure Service Manual 11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. GWC09AGCXB-D3DNA1A/O Note: Take heat pump model for example. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and Valve cover then remove them.
  • Page 101 11. Removal Procedure Service Manual 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...
  • Page 102 11. Removal Procedure Service Manual 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.
  • Page 103 11. Removal Procedure Service Manual 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.
  • Page 104 11. Removal Procedure Service Manual Caution: discharge the refrigerant TW09HXP2A1AO TW09HXP2A1DO GWC12AGCXD- GWC09AGCXD-A3DNA1A/O completely before removal. TW12HXP2A1AO A3DNA1A/O GWC12AGCXD-D3DNA1A/O GWH12AGCXD- D3DNA1A/O Note: Take heat pump model for example. Step Procedure 1. Before disassembly 2. Remove cable cross plate and valve cover Cable cross plate Remove the screws fixing cable cross plate, valve cover and then remove them.
  • Page 105 11. Removal Procedure Service Manual 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...
  • Page 106 11. Removal Procedure Service Manual 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.
  • Page 107 11. Removal Procedure Service Manual 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 Liquid valve valve, remove them.
  • Page 108 11. Removal Procedure Service Manual GWC18AGDXF-D3DNA1A/O TW18HXP2A1DO Caution: discharge the refrigerant completely before removal. Note: Take heat pump model for example. 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 109 11. Removal Procedure Service Manual 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...
  • Page 110 11. Removal Procedure Service Manual 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.
  • Page 111 11. Removal Procedure Service Manual 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.
  • Page 112 11. Removal Procedure Service Manual GWC24AGEXH-D3DNA1A/O TW24HXP2A1DO Caution: discharge the refrigerant completely before removal. Note: Take heat pump model for example. 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 113 11. Removal Procedure Service Manual 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...
  • Page 114 11. Removal Procedure Service Manual 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.
  • Page 115 11. Removal Procedure Service Manual 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.

  • Page 116: Appendix

    Appendix: Service Manual 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（℉） （℉） （℃） （℉） （℃）...

  • Page 117: Appendix 3: Pipe Expanding Method

    Appendix: Service Manual Appendix 3: 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 118: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix: Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 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...
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