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Split Type Air Conditioner / User Manual
10.2 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 filter is dirty
Remove the filter 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.
10 Troubleshooting
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