Issue Possible Causes
The outdoor unit makes
noises
The unit will make different sounds based on its current operating mode.
Dust is emitted from
either the indoor or
outdoor unit
The unit may accumulate dust during extended periods of non-use, which will
be emitted when the unit is turned on. This can be mitigated by covering the unit
during long periods of inactivity.
The unit emits a bad
odor
The unit may absorb odors from the environment (such as furniture, cooking,
cigarettes, etc.) which will be emitted during operations.
The unit’s lters have become moldy and should be cleaned.
The fan of the outdoor unit
does not operate
During operation, the fan speed is controlled to optimize product operation.
Operation is erratic,
unpredictable, or unit is
unresponsive
Interference from cell phone towers and remote boosters may cause the unit to
malfunction.
In this case, try the following:
● Disconnect the power, then reconnect.
● Press ON/OFF button on remote control to restart operation.
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 your model number.
Troubleshooting
When troubles occur, please check the following points before contacting a repair company.
Problem
Possible Causes
Solution
Poor Cooling
Performance
Temperature setting may be higher than
ambient room temperature
Lower the temperature setting
The heat exchanger on the indoor or
outdoor unit is dirty
Clean the affected heat exchanger
The air lter is dirty Remove the lter and clean it according
to instructions
The air inlet or outlet of either unit is
blocked
Turn the unit off, remove the obstruction
and turn it back on
Doors and windows are open Make sure that all doors and windows
are closed while operating the unit
Excessive heat is generated by sunlight
Close windows and curtains during
periods of high heat or bright sunshine
Too many sources of heat in the room
(people, computers, electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-term
use
Check for leaks, re-seal if necessary
and top off refrigerant
SILENCE function is activated
(optional function)
SILENCE function can lower product
performance by reducing operating
frequency. Turn off SILENCE function.
Troubleshooting
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