Troubleshooting
If your air conditioner does not work properly, first check the following points before requesting service. If
it still does not work properly, contact your dealer or service center.
Trouble Possible Cause Remedy
Air conditioner does not
run at all.
1. Power failure. 1. Restore power.
2. Leakage breaker tripped. 2. Contact service center.
3. Line voltage is too low. 3. Consult your electrician or dealer.
4. Operation button is OFF. 4. Press the button again.
5. Batteries in remote control unit
have run down.
5. Replace batteries.
OPERATION lamp flashes
and air conditioner does
not operate.
Trouble in wiring system. Contact service center.
Compressor runs but
soon stops.
Obstruction in front of condenser coil. Remove obstruction.
Poor cooling (or heating)
performance.
1. Dirty or clogged air filter. 1. Clean air filter to improve airflow.
2. Heat source or many people in
room.
2. Eliminate heat source if possible.
3. Doors and/or windows are open. 3. Shut them to keep the heat (or
cold) out.
4. Obstacle near air intake or air
discharge port.
4. Remove it to ensure good airflow.
5. Thermostat is set too high for
cooling (or too low for heating).
5. Set the temperature lower (or
higher).
6. (Outdoor temperature is too low.) 6. (Try to use a back-up heater.)
7. (Defrosting system does not work.) 7. (Consult your dealer.)
Clicking sound is heard
from the air conditioner.
In heating or cooling operation, any
plastic parts may expand or shrink
due to a sudden temperature change.
In this event, a clicking sound may
occur.
This is normal, and the sound will
soon disappear.
OPERATION lamp lights
but outdoor unit will not
run.
1. The use of portable telephones
near the air conditioner may cause
disturbance to its normal
operation.
1. Turn off the power then restart the
air conditioner after 1 minute.
2. Consult your dealer.
35OI-275-35EG
OI275000
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