DC Inverter Multi VRF System
33
6 Common Malfunctions and Troubleshooting
WARNING:
①
If there is abnormal condition (e.g. unpleasant smell), turn unit off and disconnect power
immediately. Then contact Gree authorized service center. If unit continues operation
despite the abnormal condition, it may get damaged and lead to electric shock or fire hazard.
②
Do not repair the air conditioner by yourself. Improper maintenance may lead electric shock
or fire hazard. Please contact Gree authorized service center for maintenance.
(1) Please check the items below before calling for maintenance.
Problems
Causes
What to do
Unit doesn’t work.
Fuse or circuit breaker is cut off.
Replace fuse or reset the circuit breaker.
Power failure.
Restart unit when power is restored.
Power is not connected.
Connect the power.
Remote controller’s power is not
enough.
Replace new battery.
Remote controller is out of the
control range.
Control range is within 8m.
Unit runs but stops
immediately.
Air inlet or air outlet of indoor and
outdoor units is blocked.
Clear obstructions.
Abnormal cooling or
heating.
Air inlet or air outlet of indoor and
outdoor units is blocked.
Clear obstructions.
Improper temp setting.
Adjust setting at remote controller or wired controller.
Fan speed is set too low.
Adjust setting at remote controller or wired controller.
Wind direction is not correct.
Adjust setting at remote controller or wired controller.
Door or window is open.
Close the door or window.
Direct sunshine.
Draw curtain or louver.
Too many people in the room.
Too many heat resources in the
room.
Reduce heat resources.
Filter is blocked and dirty.
Clean the filter.
NOTE!:
If problem cannot be solved after checking the above items, please contact Gree service center
and describe the cases and models.
(2) Following circumstances are not malfunctions.
Malfunction
Reason
Unit doesn’t run.
Unit starts up immediately after it is
turned off.
Overload protection switch makes it run after a 3-min
delay.
Power is just turned on.
Standby operation lasts for about 1min.
Mist comes from
the unit.
Under cooling.
Indoor air with high humidity is cooled rapidly.
Noise is emitted.
Slight cracking sound is heard when
unit is just turned on.
It is the noise when electronic expansion valve is
initialized.
There is consecutive sound when
cooling.
It is the sound for gas refrigerant flowing in the unit.
There is sound when unit starts or
stops.
It is the sound when gas refrigerant stops flowing.
There is slight and consecutive sound
when unit is running or after running.
This is the sound of drainage operation.
Cracking sound is heard when unit is
running or after running.
This is the sound caused by the expansion of panel
and other parts of the unit due to temperature change.
