23
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.
OPERATION lamp blinks
and air conditioner does
not operate.
Compressor runs but soon
stops.
Poor cooling performance.
Clicking sound is heard from
the air conditioner.
OPERATION lamp lights but
outdoor unit will not run.
Operating Range
The air conditioner is operable within the temperature ranges as listed below:
Temperature
Indoor air temperature
Outdoor air temperature
COOLING
Max.
32 °C DB / 23 °C WB
43 °C DB
Min.
19 °C DB / 14 °C WB
19 °C DB
1. Restore power.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Replace batteries.
Contact service center.
Remove obstruction.
1. Clean air filter to improve airflow.
2. Eliminate heat source if possible.
3. Shut them to keep the heat out.
4. Remove it to ensure good airflow.
5. Set the temperature lower.
This is normal, and the sound will
soon disappear.
1. Turn off the power then restart the
air conditioner after 1 minute.
2. Consult your dealer.
1. Power failure.
2. Leakage circuit breaker tripped.
3. Line voltage is too low.
4. Operation button is OFF.
5. Batteries in remote control unit
have run down.
Trouble in wiring system.
Obstruction in front of condenser coil.
1. Dirty or clogged air filter.
2. Heat source or many people in
room.
3. Doors and/or windows are open.
4. Obstacle near air intake or air
discharge port.
5. Thermostat is set too high for
cooling.
In cooling operation, any plastic parts
may shrink due to a sudden
temperature change. In this event, a
clicking sound may occur.
1. The use of cellular phones near the
air conditioner may cause
disturbance to its normal
operation.
OI-645-23EG
