Troubleshooting - Gree GMV-N140U/A-T Manuel D'installation Et D'utilisation

8 Troubleshooting

If your air conditioner is not working well, please check the following table first before asking
for service:
Phenomenon
The unit can't start
The unit stops after running for a
Poor cooling effect
Poor heating effect
Indoor fan doesn't start up during
Notes:
If air conditioner still fails to work normally after checking and handling as described above,
please stop using it immediately and contact local service center for assistance.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT
while
heating
Troubleshooting
① No power supply.
② Circuit breaker is tripped because of current leakage.
③ Circuit voltage is too low.
④ ON/OFF key sets at the stop position.
⑤ Failure in control system.
① Obstacle in front of the condenser.
② Abnormal operation of the control system.
③ Outdoor temperature is higher than 43℃ when cooling
mode is used.
Air filter is dirty or blocked.
①
Too many heating sources or people in the room.
②
Doors or windows are open.
③
Obstacle at the air intake and outlet of the unit.
④
Setting temperature is too high or refrigerant is
⑤
insufficient (e.g. refrigerant leakage).
⑥ Poor performance of the indoor temperature sensor.
Air filter is dirty or blocked.
①
Doors or windows are open.
②
③ Wrong temperature setting (too low).
④ Refrigerant leakage.
⑤ Outdoor temperature is lower than -5℃.
⑥ Abnormal operation of the control system.
① Improper location of tube sensor.
② The tube sensor inserts not well.
③ The wiring of tube sensor is broken.
④ Electricity leakage of capacitor.
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