Troubleshooting
When troubles occur, please check the following points before contacting a repair
company.
Problem
Poor Cooling
Performance
Possible Causes
Temperature setting
may be higher than
ambient room
temperature
The heat exchanger on
the indoor or outdoor
unit is dirty
The air filter is dirty
The air inlet or outlet of
either unit is blocked
Doors and windows
are open
Excessive heat is
generated by sunlight
Too many sources of
heat in the room
(people, computers,
electronics, etc.)
Low refrigerant due to
leak or long-term use
SILENCE
function is
activated
Solution
Lower the temperature setting
Clean the affected heat exchanger
Remove the filter and clean it
according to instructions
Turn the unit off, remove the
obstruction and turn it back
on
Make sure that all doors
and windows are closed
while operating the unit
Close windows and curtains
during periods of high heat
or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if
necessary and top off refrigerant
SILENCE function can lower
product performance by
reducing operating frequency.
Turn off SILENCE function.
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