Panasonic S50PN1E5: TROUBLESHOOTING

9

ENGLISH

TROUBLESHOOTING

If your air conditioner does not work properly, fi rst check the following points before requesting service. If it still does not work 

properly, contact your dealer or a service center.

INDOOR UNIT

Symptom

Cause

Noise

Sound like streaming water during 

operation or after operation

Sound of refrigerant liquid fl owing inside unit

Sound of drainage water through drain pipe

•

•

Cracking noise during operation or 

when operation stops.

Cracking sound due to temperature changes of parts

Odor

Discharged air is smelled during 

operation.

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.

Dewdrop

Dewdrop gets accumurated near air 

discharge during operation

Indoor moisture is cooled by cool wind and accumulated by dewdrop.

Fog

Fog occurs during operation in 

cooling mode.

(Places where large amounts of oil 

mist exist at restaurants.)

Cleaning is necessary because unit inside (heat exchanger) is dirty. 

Consult your dealer as technical engineering is required.

During defrost operation

•

•

Fan is rotating for a while even though operation 

stops.

Fan rotating makes operation smoothly.

Fan may sometimes rotates because of drying heat exchanger due to 

settings.

•

•

Wind-direction changes while operating.

Wind-direction setting cannot be made.

Wind-direction cannot be changed.

When air discharge temperature is low or during defrost operation, 

horizontal wind fl ow is made automatically.

Flap position is occasionally set up individually.

•

•

When wind-direction is changed, fl ap operates 

several times and stops at designated position.

When wind-direction is changed, fl ap operates after searching for 

standard position.

Dust

Dust accumulation inside indoor unit is discharged.

OUTDOOR UNIT

Symptom

Cause

No 

operation

When power is turned ON instantly.

Operation is not acticated for the fi rst approx. 3 minutes because 

compressor protection circuit is activated.

When operation is stopped and 

resumed immediately.

Noise

Noise often occurs in heating mode.

During defrost operation

Steam

Steam often occurs in heating mode.

When stopped by remote controller, outdoor unit 

fan is sometimes operating for a while even though 

outdoor compressor is stopped.

Fan rotating makes operation smoothly.