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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 circuit 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. (Consult your dealer or try to use a
back-up heater.)
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.
Tips for Energy Saving
Do not
•
Block the air intake and outlet of the unit. If they are obstructed, the
unit will not work well, and may be damaged.
•
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.
Operating Range
The air conditioner is operable within the temperature ranges as listed below:
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
COOLING
Maximum 95 °F DB/71 °F WB 115 °F DB
Minimum 67 °F DB/57 °F WB 67 °F DB
HEATING
Maximum 80 °F DB/67 °F WB 75 °F DB/65 °F WB
Minimum — DB/— WB 0 °F DB/−2 °F WB
27OI-202-27EG
oi202000