Troubleshooting - Gree GMV-ND28TS/A-T Manuel D'utilisateur

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9 Troubleshooting

The air conditioner is not expected to be serviced by users. Incorrect repair may cause
electric shock or fire, so please contact an authorized service center for professional service. The
following checks prior to contact may save your time and money.
Phenomenon
The unit can't start
The unit stops after running
for a while.
Poor cooling effect
Poor heating effect
Indoor fan doesn't start
up during heating
Note:
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.
Two-way Cassette Indoor Unit Owner's Manual
① Power supply is not connected.
② Circuit breaker tripping caused by leakage of electricity.
③ Input voltage is too low.
④ Operation button is closed.
⑤ Control loop is abnormal
① The inlet or outlet of ODU or IDU are blocked by obstacle.
② Control loop is abnormal
③ Set the unit in cooling mode when outdoor ambient temperature is higher
than 43°C.
① The filter is dirty or blocked.
② Too heavy heat load of room(e.g. too many people)
③ Door or windows is open.
④ Inlet and outlet of IDU are blocked.
⑤ Setting temperature is too high or refrigerant leaks.
⑥ The performance of room temperature sensor is getting worse.
① The filter is dirty or blocked.
② Door or window is open.
③ Setting temperature is too low.
④ Refrigerant leakage.
⑤ Outdoor ambient temperature is lower than -5°C.
⑥ Abnormality of control circuit.
① Placing position of tube temperature sensor head is not suitable.
② Tube temperature sensor head isn't inserted well.
③ Wiring of tube temperature sensor head is broken
④ Capacitor is leaking electricity
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Troubleshooting

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