Troubleshooting - Technibel CAV92C5TA Series Operating Instructions Manual

TROUBLESHOOTING

WARNING
The use of portable telephones near the air conditioner may cause
disturbance to its normal operation and must be avoided. In case
abnormal operation is noticed, (OPR operation lamp lights but
outdoor unit will not run) to restore normal operation turn-off electric
supply for 60 seconds at least, by disconnecting the main switch,
then start again the air conditioner.
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: the air conditioner does not run at all.
Possible cause:
1. Power failure.
2. Leakage breaker tripped.
3. Line voltage is too low.
4. Operation button is OFF.
5. Batteries in remote control unit have run down.
Remedy:
1. Restore power.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Replace batteries.
Trouble: O.P.R. (operation) lamp flashes and the air conditioner
does not operate.
Possible cause:
1. Trouble in wiring system.
Remedy:
1. Contact service center.
Trouble: Compressor runs but soon stops.
Possible cause:
1. Obstruction in front of condenser coil.
Remedy:
1. Remove obstruction.
Trouble: Poor cooling or heating performance.
Possible cause:
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. Outdoor temperature is too low (heat pump version).
7. Defrosting system does not work (heat pump version).
Remedy:
1. Clean air filter to improve 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. Try to use a back-up heater.
7. Consult your dealer.
Trouble: Clicking sound is heard from the air conditioner.
Possible cause:
1. 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.
Remedy:
1. This is normal, and the sound will soon disappear.
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