Troubleshooting - Gree NCHS2D Owner's Manual

GMV6 HR Mode Exchange Box

7 Troubleshooting

If the air conditioner can't operate normally, please check below items before asking for service:
Malfunction
Air conditioner can't be started up
Air conditioner can operate, but it will stop
operate after for a while
Cooling effect is bad
Heating effect is bad
Indoor fan can't be started up under
heating mode
NOTE!
After checking above items, if the air conditioner still can't operate normally, please stop the air
conditioner immediately and then contact appointed maintenance center.
① It hasn't been put through power.
② Leakage switch is tripped.
③ Voltage is too low.
④ Working buttons are off.
⑤ Malfunction of control loop.
① There's obstacle in front of condenser.
② Control loop is abnormal.
③ Turn on the cooling mode when the outdoor ambient temperature
is more than 43°C.
① Air filter is dirty or blocked.
② There are heat source or too many people in the room.
③ Door or winder is open.
④ There're obstacles at air inlet and air outlet.
⑤ Set temperature is too high or refrigerant is leaking.
⑥ Specification of room temperature sensor is not good.
① Air filter is dirty or blocked.
② Door or window is not closed well.
③ Set temperature is too low.
④ Refrigerant is leaking.
⑤ Outdoor ambient temperature is lower than -5°C.
⑥ Control wiring is abnormal.
① The installation position for the tube temperature sensor is not
proper.
② Tube temperature sensor is not inserted well.
③ Wires for tube temperature sensor is broken.
④ Capacitor is leaking.
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Causes