Panasonic CU-PW18GKX Operating Guide

ENGLISH

TROUBLESHOOTING

Symptom

Check

Heating/Cooling operation is not working

effi ciently.

• Set the temperature correctly.

• Close all doors and windows.

• Clean or replace the fi lters.

• Clear any obstruction at the air inlet and air outlet vents.

Noisy during operation.

• Check if the unit has been installed at an incline.

• Close the front panel properly.

Remote control does not work.

(Display is dim or transmission signal is weak.)

• Insert the batteries correctly.

• Replace weak batteries.

The unit does not work.

• Check if the circuit breaker is tripped.

• Check if timers have been set.

The unit does not receive the signal from the

remote control.

• Make sure the receiver not obstructed.

• Certain fl uorescent lights may interfere with signal transmitter. Please

consult authorized dealer.

Symptom

Cause

Mist emerges from indoor unit.

• Condensation effect due to cooling process.

Water fl owing sound during operation.

• Refrigerant fl ow inside the unit.

The room has a peculiar odour.

• This may due to damp smell emitted by the wall, carpet, furniture or

clothing.

Indoor fan stops occasionally during automatic

fan speed setting.

• This helps to remove the surrounding odours.

Operation is delayed a few minutes after

restart.

• The delay is a protection to the unit’s compressor.

Outdoor unit emits water/steam.

• Condensation or evaporation occurs on pipes.

Timer indicator is always on.

• The timer setting repeats daily once set.

Power indicator blinks during operation and

the indoor fan is stopped.

• The unit is in defrost mode, and the melted frost is drained from the

outdoor unit.

Indoor fan stops occasionally during heating

operation.

• To avoid unintended cooling effect.

Cracking sound during operation.

• Changes of temperature cause the expansion/contraction of the unit.

The following symptoms do not indicate malfunction.

Check the following before calling for servicing.