TROUBLESHOOTING
CAUTION
!!
If one of the following conditions occurs, switch off the power supply immediately and
contact your dealer for further assistance
The operation light continues to flash rapidly after the unit has been restarted.
The remote control buttons do not work.
The unit continually trips fuses or circuit breakers.
A foreign object or water enters the air conditioner.
The indoor unit leaks.
Other abnormal situations.
Common Problems
The following symptoms are not a malfunction and in most situations will not require repairs.
Problem
Possible Cause
Abnormal noises
of indoor unit
When the system is turned off or in cooling mode, there will be
abnormal noise, and when the drain pump (optional) is running,
noise will also be heard.
A squeaking sound may occur after running the unit in HEAT
mode due to expansion and contraction of the units plastic parts.
Abnormal noises
of outdoor unit
The unit will make different sounds based on its current operating
mode.
Both the indoor
and outdoor units
makes noises
The air conditioner may sizzle during operation. This is a normal
phenomenon, which is caused by refrigerant gas flowing through
the indoor and outdoor units.
When the air conditioner is turned on, and just stopped or defros-
ted, a hiss may be heard. This noise is normal and is caused by
refrigerant gas stopping or turning.
Unit does not turn
on when pressing
ON/ OFF button
The unit has a 3-minute protection feature that prevents the unit
from overloading. The unit cannot be restarted within three
minutes of being turned off.
Cooling and Heating Models: If the Operation light and PRE-DEF
(Pre-heating/ Defrost) indicators are lit up, the outdoor tempera-
ture is too cold and the unit's anti-cold wind is activated in order
to defrost the unit.
The unit changes
from COOL mode
toFAN mode
The unit changes its setting to prevent frost from forming on the unit.
Once the temperature increases, the unit will start operating again.
The set temperature has been reached, at which point the unit turns
off the compressor. The unit will resume operating when the tempe-
rature fluctu ates again.
The indoor unit
emits white mist
In humid regions, a large temperature difference between the room's
air and the conditioned air can cause white mist.
