Instruction manual

13
6. Trouble Shooting
Before calling a repair man, please check the followings:
The air conditioner
does not work
The unit does not
blow warm air in
heating mode
Low efficiency of
cooling or heating
Noise
Abnormality on
the remote con-
trol screen
Cold water leaking
from the air condi-
tioner
Symptom Possible reason
• Moisture will occur in the air outlet due to the tempera
ture difference.
• Batteries need to be replaced.
• Batteries are inserted incorrectly. Take the batteries
out and insert them again.
• The air filters are too dirty.
• The intake vent or outlet vent is blocked up.
• In heating operation, the ambient temperature is too low.
Defrosting operation may be required.
• The compressor is in a delay mode (to protect the
compressor there are several minutes delay for
every start) wait a few minutes after starting the unit.
• The hot air will be blown out only after the defrosting
operation.
• Problem with the remote control.
• Problem with the voltage. Please shut the power,
wait 3 minutes and restart the unit.
• Verify the circuit breaker or fuse.
• Water leak noise. It is the sound of the circulation of
refrigerant.
• Condensed air leaking out. In heating operation,
during the defrosting, it is the sound of the back-flow
refrigerant.