Troubleshooting
These cases are not troubles.
The following cases are not air conditioner troubles but have some reasons. You may just continue using it.•
Indoor unit
Outdoor unit
The HEAT operation stops suddenly
and a fl owing sound is heard.
The outdoor unit is taking away the frost.•
The HEAT operation starts after the frost on the outdoor
unit is removed. You should wait for about 4 to 12 minutes.
Operation does not start soon.
When “ON/OFF” button was pressed soon
after operation was stopped.
When the mode was reselected.
This is to protect the air conditioner.•
You should wait for about 3 minutes.
The fl aps do not start swinging
immediately.
The air conditioner is adjusting the position of the •
fl aps. The fl aps will start moving soon.
A sound is heard.
A sound like a fl ow of water
This sound is generated because the refrigerant in •
the air conditioner is fl owing.
•
This is a pumping sound of the water in the air
conditioner and heard when the water is pumped out
from the air conditioner in cooling or drying operation.
The refrigerant fl ows in the air conditioner even if the •
air conditioner is not working when the indoor units
in other rooms are in operation.
Blowing sound
This sound is generated when the fl ow of the •
refrigerant in the air conditioner is switched over.
Ticking sound
•
This sound is generated when the size of the air conditioner
slightly expands or shrinks as a result of temperature changes.
Whistling sound
This sound is generated when refrigerant fl ows •
during defrosting operation.
Clicking sound during operation or idle time
This sound is generated when the refrigerant control •
valves or the electrical parts operate.
Clopping sound
•
This sound is heard from the inside of the air conditioner
when the exhaust fan is activated while the room doors
are closed. Open the window or turn off the exhaust fan.
The outdoor unit emits water or steam.
In HEAT operation
The frost on the outdoor unit melts into water or steam when the air conditioner is •
in defrost operation.
In COOL or DRY operation
Moisture in the air condenses into water on the cool surface of outdoor unit piping •
and drips.
The air conditioner stops generating
airfl ow during operation.
Once the set temperature is reached, the airfl ow •
rate is reduced and operation stopped in order to
avoid generating cool airfl ow (during heating) or in
order to keep the humidity from rising (during
cooling). Operation will resume automatically when
the indoor temperature rises or falls.
