12
3. The system operates but it does not suffi-
ciently cool or heat.
•
If the air inlet or outlet of the indoor or the out-
door unit is blocked with obstacles.
Remove the obstacle and make it well-venti-
lated.
•
If the air filter is clogged.
Ask a qualified service person to clean the air
filters (Refer to MAINTENANCE).
•
If the set temperature is not proper (Refer to
ADJUSTMENT).
•
If the FAN SPEED button is set to LOW
SPEED (Refer to ADJUSTMENT).
•
If the air flow angle is not proper (Refer to AIR
FLOW DIRECTION ADJUST).
•
If the doors or the windows are open. Shut
doors or windows to prevent wind from coming
in.
•
If direct sunlight enters the room (when cool-
ing).
Use curtains or blinds.
•
When there are too many inhabitants in the
room (when cooling).
Cooling effect decreases if heat gain of the
room is too large.
•
If the heat source of the room is excessive
(when cooling).
Cooling effect decreases if heat gain of the
room is too large.
01_EN_3P141308-4F.fm Page 12 Thursday, October 13, 2005 3:02 PM