Instructions / Assembly

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NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide them with
a detailed description of the unit malfunction as well as the model number of your unit.
Troubleshooting
The following events may occur during normal operation, and may not indicate a malfunction.
WARNING
• Signal/power cable is damaged or abnormally warm
• Burning odor
• Loud or abnormal sounds
• A power fuse or circuit breaker trips frequently
• Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO CORRECT
OR FIX THESE ITEMS YOURSELF!
CONTACT AN AUTHORIZED
SERVICE PROVIDER
IMMEDIATELY!
In the case of any of the following, turn off the unit immediately!
Common Issues
Issue Possible Causes
Unit does not turn on
when pressing the
ON/OFF button.
The unit has a 3 minute restart protection feature that prevents the
unit from overloading from quick restarts. The unit cannot be
restarted within 3 minutes of being turned off.
Cooling and heating models: If the operation light and PRE-DEF
(Pre-heating/Defrost) indicators are lit up, it indicates the outdoor
temperature has dropped low enough that the unit’s anti-frost is
activated in order to defrost the unit.
In cooling-only models: If the “Fan-Only” indicator is lit up, it
indicates the outdoor temperature has dropped low enough that the
unit’s anti-frost is activated in order to defrost the unit.
The unit changes from
COOL/HEAT mode to FAN
mode
The unit may change its setting to prevent frost from forming on the
unit. Once the temperature increases, the unit will start operating in
the previously selected mode again.
The system has reached the set temperature, at which point the unit
will turn off the compressor. The unit will continue operating under
fan mode, to circulate the air, until the temperature fluctuates
again. At this point the compressor will turn back on.
The indoor unit emits a
white mist
In humid regions, a large temperature difference between the room’s
air and the conditioned air from the unit can cause a white mist.
Both the indoor unit and
outdoor units emit a
white mist
When the unit restarts in HEAT mode after defrosting, a white mist
may be emitted due to moisture generated from the defrosting
process.
The indoor unit makes
noises
The outdoor unit makes
noises
A squeaking sound can be heard when the system is OFF or in COOL
mode. The noise can also be heard when the drain pump is in
operation.
A squeaking sound may occur after running the unit in HEAT mode
due to expansion and contraction of the unit’s plastic parts.
The unit will make different sounds based on its current operating
mode.