Operation Manual

36
■ 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
The flaps do not start swinging
immediately.
The air conditioner stops generating
airflow during operation.
Operation does not start soon.
The HEAT operation stops suddenly
and a flowing sound is heard.
A sound is heard.
• The air conditioner is adjusting the position of the flaps.
The flaps will start moving soon.
• Once the set temperature is reached, the airflow rate is
reduced and operation stopped in order to avoid
generating cool airflow (during heating) or in order
to keep the humidity from rising (during cooling).
Operation will resume automatically when the indoor
temperature rises or falls.
■ 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 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.
■ A sound like a flow of water
• This sound is generated because the refrigerant in the
air conditioner is flowing.
• 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 flows 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 flow 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 flows 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.
Outdoor unit
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.
Troubleshooting