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 a service center.
Trouble
Air conditioner does not
run at all.
Compressor runs but
soon stops.
Poor cooling (or heating)
performance
Lamps on the indoor
unit are flashing.
2
2 - 18
Troubleshooting
Possible Cause
1. Power failure
2. Leakage circuit breaker has tripped.
3. Line voltage is too low.
4. Operation button is turned off.
5. The wireless remote controller or
heat pump is malfunctioning.
6. Batteries in wireless remote
controller have run down.
1. Obstruction in front of condenser coil 1. Remove obstruction.
1. Dirty or clogged air filter
2. Heat source or many people in room 2. Eliminate heat source if possible.
3. Doors and/or windows are open.
4. Obstacle near air intake or air
discharge port
5. Thermostat is set too high for cooling 5. Set the temperature lower (or higher).
(or too low for heating).
6. (Outdoor temperature is too low).
7. (Defrosting system does not work.)
1. Trouble in wiring system
Tips for Energy Saving
Avoid
•
Do not block the air intake and outlet of the unit. If either is
obstructed, the unit will not work well, and may be damaged.
•
Do not let direct sunlight into the room. Use sunshades, blinds or curtains.
If the walls and ceiling of the room are warmed by the sun, it will take
longer to cool the room.
•
Always try to keep the air filter clean. (Refer to "Care and Cleaning.")
Do
A clogged filter will impair the performance of the unit.
•
To prevent conditioned air from escaping, keep windows, doors and any
other openings closed.
Should the power fail while the unit is running
If the power supply for this unit is temporarily interrupted the unit will
automatically resume operation (once the power is restored) with the
same settings that were in effect before the power was interrupted.
Remedy
1. Restore power.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Consult your dealer.
6. Replace batteries.
1. Clean the air filter to improve the
airflow.
3. Shut them to keep the heat (or cold)
out.
4. Remove it to ensure good airflow.
6. (Try to use a back-up heater.)
7. (Consult your dealer.)
1. Contact service center.