Panasonic S90MF2E5A: Troubleshooting

Troubleshooting

Check before consulting or requesting services.

Symptom Cause / Action

Sound like streaming water is heard

• Sound of refrigerant liquid owing inside unit

during operation or after operation.

• Sound of drainage water through drain pipe

Noise

Cracking noise is heard during operation

Sound due to temperature changes of parts

or when operation stops.

• Indoor odor components, cigarette odor and cosmetic odor

accumulated in the air conditioner and its air is discharged.

Discharged air smells during operation.

• The unit inside is dirty.

(Contact your dealer.)

ENGLISH

Dewdrops accumulate near the air outlet

• Internal moisture is cooled by cool wind and accumulates as

during cooling operation.

dewdrops.

• If the air conditioner has been installed at places such as

restaurants where large amounts of oil mist exist, cleaning is

Fog occurs during cooling operation.

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

(Contact your dealer.)

Fog occurs during heating operation.

• Defrost operation is in process.

Indoor unitOutdoor unit

• Fan rotation makes operation smooth.

The fan is rotating for a while even though

• The fan may rotate to dry the heat exchanger depending on

operation stops.

the setting.

• When air discharge temperature is low during heating

Airow direction changes while operating.

operation, or during defrost operation, horizontal wind ow is

Airow direction cannot be set.

made automatically.

• The ap position may be set individually.

Airow

Airow direction cannot be changed.

(U1 type)

direction

The ap moves several times after the

• The ap moves to the standard position once, and then turns

direction is changed.

to the set airow direction.

Dust is discharged.

• Dust accumulated inside the indoor unit is discharged.

At the initial high-speed operation, the fan

sometimes rotates faster than the setting

• This is for operation check in order to conrm whether the fan

speed.

motor rotation is within the range of use.

(3 to 30 minutes)

No operation

(When the power is turned on immediately /

• Operation is not activated for the rst approx. 3 minutes

When operation is stopped and resumed

because the compressor protection circuit is activated.

immediately)

Noise occurs during heating operation.

• Defrost operation is in process.

Steam comes out during heating operation.

The fan continues to rotate even after the

operation is stopped using the remote

• This is for smooth operation.

controller.

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OI_F569617_EU_L.indb 9 2013-12-17 17:57:44