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.
8
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 wired remote control unit or
heat pump is malfunctioning.
(
The inspection mark
letters E, F, H, L, P in
combination with numbers
appear on the LCD of the wired
remote control unit.)
1. 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 (or too low for heating).
6. (Defrosting system does not work.)
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.
Do
•
Always try to keep the air filter clean. (Refer to "Care and Cleaning".) 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
NOTE
If the power supply for this unit is temporarily cut off, the unit will automatically
resume operation once power is restored using the same settings before the
power was cut off.
After a power outage, press ON/
1.
OFF operation button on the
wired remote control unit.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Consult your dealer.
and the
1. Remove obstruction.
1. Clean air filter to improve the
airflow.
2. Eliminate heat source if possible.
3. Shut them to keep the heat (or
cold) out.
4. Remove it to ensure good airflow.
5. Set the temperature lower (or
higher).
6. (Consult your dealer.)
Remedy
OI-100-8-EN