Panasonic U71PEY1E5: TROUBLESHOOTING

01_85464609230020_EN.fm Page 12 Thursday, December 27, 2012 4:22 PM

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 Cause

Noise Sound like streaming water during

• Sound of refrigerant liquid flowing inside unit

operation or after operation

• Sound of drainage water through drain pipe

Cracking noise during operation or

Cracking sound due to temperature changes of parts

when operation stops.

Odor Discharged air is smelled during

Indoor odor components, cigarette odor and cosmetic odor accumurated

operation.

in the air conditioner and its air is discharged.

Unit inside is dusty. Consult your dealer.

Dewdrop Dewdrop gets accumurated near air

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

discharge during operation

Fog Fog occurs during operation in cooling

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

mode.

Consult your dealer as technical engineering is required.

(Places where large amounts of oil

• During defrost operation

mist exist at restaurants.)

Fan is rotating for a while even though operation

• Fan rotating makes operation smoothly.

stops.

• Fan may sometimes rotates because of drying heat exchanger due to

settings.

Wind-direction changes while operating.

• When air discharge temperature is low or during defrost operation,

Wind-direction setting cannot be made.

horizontal wind flow is made automatically.

Wind-direction cannot be changed.

• Flap position is occasionally set up individually.

When wind-direction is changed, flap operates

When wind-direction is changed, flap operates after searching for

several times and stops at designated position.

standard position.

Dust Dust accumulation inside indoor unit is discharged.

At the initial high-speed operation, the fan may

This is for operation check in order to confirm whether the fan motor

sometimes rotate faster (for 3 to 30 minutes) than

rotation is within use range.

the setting speed.

OUTDOOR UNIT

Symptom Cause

No

When power is turned ON instantly. Operation is not activated for the first approx. 3 minutes because

operation

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

Fan rotating makes operation smoothly.

is sometimes operating for a while even though

outdoor compressor is stopped.

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