Panasonic U1 Serie Instructions D'installation page 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 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 accumurated 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.
Wind-direction changes while operating.
Wind-direction setting cannot be made.
Wind-direction cannot be changed.
When wind-direction is changed, flap operates
several times and stops at designated position.
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 accumurated
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 rotates because of drying heat exchanger due to
settings.
●
When air discharge temperature is low or during defrost operation,
horizontal wind flow is made automatically.
●
Flap position is occasionally set up individually.
When wind-direction is changed, flap operates after searching for
standard position.
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.
24
Cause