Panasonic U1 Serie Instrucciones De Funcionamiento página 12

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
At the initial high-speed operation, the fan may
sometimes rotate faster (for 3 to 30 minutes) than
the setting speed.
OUTDOOR UNIT
Symptom
No When power is turned ON instantly.
operation
When operation is stopped and
resumed immediately.
Noise Noise often occurs in heating mode.
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.
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TROUBLESHOOTING
• 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.
This is for operation check in order to confirm whether the fan motor
rotation is within use range.
Operation is not activated for the first approx. 3 minutes because
compressor protection circuit is activated.
During defrost operation
Fan rotating makes operation smoothly.
Cause
Cause