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9 Troubleshooting
CAUTION!
unit immediately!
• The power cord is damaged or abnormally warm.
• You smell a burning odor.
A
• The unit emits loud or abnormal sounds.
• A power fuse blows or the circuit breaker frequently trips.
• Water or other objects fall into or out of the unit.
• Do not attempt to fix these yourself! Contact an authorized Service
provider immediately!
9�1 Common issues
The following problems are not a malfunction and in most situations will not require
repairs.
Issue
Unit does not turn on when
pressing ON/OFF button
The unit changes from COOL
mode to FAN mode
The indoor unit
emits white mist
Both the indoor and outdoor
units emit white mist
58 / EN
If any of the following conditions occurs, turn off your
Possible Causes
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 temperature is too cold and the unit's anti-cold
wind is activated in order to defrost the unit.
In Cooling-only Models: If the "Fan Only" indicator is lit up,
the outdoor temperature is too cold and the unit's anti-
freeze protection is activated in order to defrost the unit.
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 temperature fluctuates again.
In humid regions, a large temperature difference between
the room's air and the conditioned air can cause white
mist.
When the unit restarts in HEAT mode after defrosting,
white mist may be emitted due to moisture generated
from the defrosting process.
Multi Split Type Air Conditioner / User Manual
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