English
38
Troubleshooting
■
These cases are not troubles.
• The following cases are not unit 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 unit.
You should wait for about 3 minutes.
The
fl
aps do not start swing
immediately.
• The unit is adjusting the
fl
aps position. 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 unit is
fl
owing.
• This sound is generated when the water is
fl
owing
away from the unit during COOL or DRY operation.
■
Blowing sound
• This sound is generated when the
fl
ow of the
refrigerant in the unit is switched over.
■
Ticking sound
• This sound is generated when the size of the unit 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 unit when
the external device sucks the air out of the room
(e.g. exhaust fan, extractor hood) while the doors
and windows in the room are closed. Open the
doors or window or turn off the device.
The outdoor unit emits water or steam.
■
In HEAT operation
• The frost on the outdoor unit melts into water or steam when the unit 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 unit stops generating air
fl
ow
during operation.
• Once the set temperature is reached, the air
fl
ow rate
is reduced and operation stopped in order to avoid
generating cool air
fl
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. (For more information see
Page 22
.)
