24
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.
Operating Range
The air conditioner is operable within the temperature ranges as listed below:
For Cooling Only Models : C0971, C1271
For Low Ambient Cooling Models : CL0971, CL1271
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. Batteries in remote control unit have
run down.
4. Replace batteries.
OPERATION lamp blinks and air
conditioner does not operate.
Trouble in system. Contact service center.
Compressor runs but soon stops. Obstruction in front of condenser coil. Remove obstruction.
Poor cooling 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 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. 5. Set the temperature lower.
Clicking sound is heard from the air
conditioner.
In cooling operation, any plastic parts
may 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 cellular phones near the
air conditioner may cause
disturbance to its normal operation.
1. Turn off the power then restart the
air conditioner after a while.
2. Consult your dealer.
Temperature Indoor air temperature Outdoor air temperature
COOLING Max. 95 °F DB / 71 °F WB 115 °F DB
Min. 67 °F DB / 57 °F WB 67 °F DB
Temperature Indoor air temperature Outdoor air temperature
COOLING Max. 95 °F DB / 71 °F WB 115 °F DB
Min. 67 °F DB / 57 °F WB 0 °F DB
OI-803-24-EG
01_KS0971_En.fm Page 24 Monday, October 17, 2005 4:17 PM
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