Panasonic WH-ADF0309J3E5CM Service Manual page 136


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 a service center.

Indoor unit
Symptom
Noise Sound like streaming water during
operation or after operation
Cracking noise during operation or when
operation stops.
Odor Discharged air is smelled during
operation.
Dewdrop Dewdrop gets accumulated near air
discharge during operation
Fog Fog occurs during operation in cooling
mode.
(Places where large amounts of oil mist
exist at restaurants.)
Fan is rotating for a while even though operation stops.
Dust
Poor cooling or heating performance
 Sound of refrigerant liquid flowing inside unit
 Sound of drainage water through drain pipe
Cracking sound due to temperature changes of parts
Indoor odor components, cigarette odor and cosmetic odor accumulated in the air
conditioner and its air is discharged.
Unit inside is dusty. Consult your dealer.
Indoor moisture is cooled by cool wind and accumulated by dewdrop.
 Cleaning is necessary because unit inside (heat exchanger) is dirty.
Consult your dealer as technical engineering is required.
 During defrost operation
 Fan rotating makes operation smoothly.
 Fan may sometimes rotate because of drying heat exchanger due to settings.
 Fan may sometimes rotate in internal cleaning operation mode for a while.
Dust accumulation inside indoor unit is discharged.
The indoor unit is initially designed to control the indoor temperature detected by the
built-in room sensor inside the indoor unit.
Due to indoor unit installation position, however, the built-in sensor may occasionally
sense temperature improperly; for example, temperature difference between the
ceiling and floor, lighting apparatus, electric fan, windows or waist-high partition
walls, etc.
In this case, the unit does not operate properly at the desired temperature.
You may change the use of the temperature sensor inside the indoor unit to that of
the remote controller.
Then the desired room temperature can be controlled properly.
For details, consult your dealer.
136
Cause