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9. Troubleshooting

Safety

Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity

power in capacitor.

Electrolytic Capacitors

(HIGH VOLTAGE! CAUTION!)

For other models, please connect discharge resistance (approx.100

Ω 40W) or soldering iron (plug) b, -

terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

Note: The picture above is only for reference. The plug of your side may be different.

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Содержание Aurora MOF-24HFN1-QRD0GW

Страница 1: ...Aurora 3D Inverter Series Service Manual 2014 ABSEU A1 1410...

Страница 2: ...6 3 Pipe length and the elevation 18 6 4 Installation for the first time 19 6 5 Adding the refrigerant after running the system for many years 20 6 6 Re installation while the indoor unit need to be...

Страница 3: ...reful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the product on a defective installation s...

Страница 4: ...way properly A bad connection may cause water leakage Keep level even when installing the product It can avoid vibration of water leakage Do not install the product where the noise or hot air from the...

Страница 5: ...f the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire T...

Страница 6: ...18HFN1 QRD0GW 24k MSABEU 24HRDN1 QRC8GW MOF 24HFN1 QRD0GW Cold catalyst filter Silver Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Ionizer O Compressor Crankcase Heater O...

Страница 7: ...3 Dimension 3 1 Indoor Unit Model W D H MSABAU 09HRDN1 QRC8GW 722 187 290 MSABBU 12HRDN1 QRC8GW 802 189 297 MSABDU 18HRDN1 QRC8GW 965 215 319 MSABEU 24HRDN1 QRC8GW 1080 226 335...

Страница 8: ...For MSABAU 09HRDN1 QRC8GW For MSABBU 12HRDN1 QRC8GW For MSABDU 18HRDN1 QRC8GW For MSABEU 24HRDN1 QRC8GW...

Страница 9: ......

Страница 10: ...200cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B MOZ 09HFN1 QRD0GW 810 310 558 874 549 325 MOZ 12HFN1 QRD0GW 810 310 558 874 549 325 MOZ1 18HFN1 QRDOGW 810 310 5...

Страница 11: ...GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR INDOOR OUTDOOR CHECK...

Страница 12: ...5 Wiring Diagram 5 1 Indoor Unit MSABAU 09HRDN1 QRC8GW MSABBU 12HRDN1 QRC8GW MSABDU 18HRDN1 QRC8GW...

Страница 13: ...MSABEU 24HRDN1 QRC8GW...

Страница 14: ...5 2 Outdoor Unit MOZ 09HFN1 QRD0GW MOZ 12HFN1 QRD0GW...

Страница 15: ...MOZ1 18HFN1 QRDOGW...

Страница 16: ...MOF 22HFN1 QRD0GW...

Страница 17: ...4 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectiona...

Страница 18: ...GW 3 8 9 52 1 4 6 35 5 10 25 15 MSABBU 12HRDN1 QRC8GW MOZ 12HFN1 QRD0GW 3 8 9 52 1 4 6 35 5 10 25 15 MSABDU 18HRDN1 QRC8GW MOZ1 18HFN1 QRDOGW 1 2 12 7 1 4 6 35 5 20 30 15 MSABEU 24HRDN1 QRC8GW MOF 22H...

Страница 19: ...ction to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa I...

Страница 20: ...ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrig...

Страница 21: ...o the close position 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 6 Set the 3 way valve to the closed position immediately Do this quickly so that the...

Страница 22: ...cuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom o...

Страница 23: ...Be sure to check for gas leakage...

Страница 24: ...come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner...

Страница 25: ...ure settings when the air conditioner is operational Displays the room temperature in FAN mode Displays the self diagnostic codes Dispalys for three seconds when Timer ON Fresh Swing Turbo or Silence...

Страница 26: ...will be also controlled by anti cold wind function 8 3 7 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature 3 C 37 4 F and the machine connects to power...

Страница 27: ...oor fan is controlled as below Setting fan speed Actual fan speed H H H G A H H B C M M M Z D M M M E F L L L D G L L L H I T1 Td F L L L L D H H H H G M M M M Z 4 5 3 0 1 5 4 5 3 0 1 5 4 5 3 0 1 5 Th...

Страница 28: ...H L 0 6 L H L 0 2 L 8 4 3 3 Defrosting mode If any one of the following items is satisfied AC will enter the defrosting mode After the compressor starts up and keeps running mark the minimum value of...

Страница 29: ...s the same as in cooling mode All protections are active and the same as that in cooling mode 8 4 6 Forced operation function Forced cooling mode The compressor and outdoor fan keep running and the in...

Страница 30: ...will have 3 minutes delay when restarts 8 4 10 Refrigerant Leakage Detection With this new technology the display area will show EC when the outdoor unit detects refrigerant leakage 8 4 11 Louver Pos...

Страница 31: ...ction if the PCB doesn t receive any signal from remote controller for 7 minutes or pressing FOLLOW ME button again the follow me function will be turned off automatically and the temperature will con...

Страница 32: ...lectricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electroly...

Страница 33: ...EC Refrigerant leakage detection 2 times O F1 Outdoor ambient temperature sensor T4 open circuit or short circuit 3 times O F2 Condenser coil temperature sensor T3 open circuit or short circuit 4 time...

Страница 34: ...PCB Power off then restart the unit 2 minutes later EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the location of EEPROM chip please refer to the b...

Страница 35: ...Yes Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later No Replace the outdoor main PCB Power on Is the error extinguished Replace the outdoor main PCB Powe...

Страница 36: ...sed causes Wiring mistake Fan ass y faulty Fan motor faulty PCB faulty Trouble shooting Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan by hand The unit operat...

Страница 37: ...outdoor PCB For WZDK36 38G W WZDK40 38G W 1 Power on and check if the fan can run normally if the fan can run normally the PCB must has problems and need to be replaced If the fan can t run normally m...

Страница 38: ...4 seconds and this situation happens 3 times the display area will show EC and AC will turn off Supposed causes T2 sensor faulty Indoor PCB faulty System problems such as leakage or blocking Trouble...

Страница 39: ...mpling voltage is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting Check the connection between temperatu...

Страница 40: ...ires and connectors Yes No Check the IPM No Yes Replace the IPM board or replace the main PCB Check the outdoor fan and the outdoor unit ventilation No Please refer to the solution of Fan Speed Has Be...

Страница 41: ...ecified voltage detection circuit Supposed causes Power supply problems System leakage or block PCB faulty Trouble shooting Check the power supply Check the connections and wires Stop the unit No Yes...

Страница 42: ...uble shooting Check the air flow system of indoor and outdoor units Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units Yes No Yes Yes Power off then restart the unit 1...

Страница 43: ...istake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check the wiring between main PCB and compressor Correct the connection or replace the wires...

Страница 44: ...rom PCB measure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge te...

Страница 45: ...0 40060 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 37956 1 37 1988 39 5 39689 79 1 21330 119 0 36954 0 35 2024 40 5 17519 80 1 17393 120 0 35982 1 33 3269 41 4 9...

Страница 46: ...essor checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ DA130M1C 31FZ DA200S2C 10MT Blue Red 1 57 20 68 1 77 20 68 0 51 20 68 Blue Black R...

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