13
English
If the system stops operating after operat-
2.
ing the system.
Check if the air inlet or outlet of outdoor or
•
indoor unit is blocked by obstacles.
Remove the obstacle and make it well-venti-
lated.
Check if the air fi lter is clogged.
•
Ask a qualifi ed service person to clean the
air fi lters (Refer to MAINTENANCE).
The system operates but it does not suffi -
3.
ciently cool or heat.
If the air inlet or outlet of the indoor or the
•
outdoor unit is blocked with obstacles.
Remove the obstacle and make it well-venti-
lated.
If the air fi lter is clogged.
•
Ask a qualifi ed service person to clean the
air fi lters (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 fl ow 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 com-
ing 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_3PN07520-2A.indd 13
01_EN_3PN07520-2A.indd 13
12/24/2008 2:47:06 PM
12/24/2008 2:47:06 PM