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TROUBLESHOOTING & WARRANTY
Problem
Poor Cooling
Performance
The unit is not
working
Page 42
Cause
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
Power failure
The power is turned off
The fuse is burned out
Remote control batteries are
dead
The Unit's 3 minutes
protection has been activated
Timer 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
Have a qualified service technician check
for leaks, re-seal if necessary and top off
refrigerant
Wait for the power to be restored
Turn on the power
Replace the fuse
Replace batteries
Wait three minutes after restarting the unit
Turn timer off
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