Troubleshooting - Panasonic S-73MU2E5A Operating Instructions Manual

Troubleshooting

Check before consulting or requesting services.
Symptom
Sound like streaming water is heard
during operation or after operation.
Noise
Cracking noise is heard during operation
or when operation stops.
Discharged air smells during operation.
Dewdrops accumulate near the air outlet
during cooling operation.
Fog occurs during cooling operation.
Fog occurs during heating operation.
The fan is rotating for a while even though
operation stops.
Airflow direction changes while operating.
Airflow direction cannot be set.
Airflow
Airflow direction cannot be changed.
direction
The flap moves several times after the
direction is changed.
Dust is discharged.
At the initial high-speed operation, the fan
sometimes rotates faster than the setting
speed.
(3 to 30 minutes)
No operation
(When the power is turned on immediately /
When operation is stopped and resumed
immediately)
Noise occurs during heating operation.
Steam comes out during heating operation.
The fan continues to rotate even after the
operation is stopped using the remote
controller.
Cause / Action
• Sound of refrigerant liquid flowing inside unit
• Sound of drainage water through drain pipe
Sound due to temperature changes of parts
• Indoor odor components, cigarette odor and cosmetic odor
accumulated in the air conditioner and its air is discharged.
• The unit inside is dirty.
(Contact your dealer.)
• Internal moisture is cooled by cool wind and accumulates as
dewdrops.
• If the air conditioner has been installed at places such as
restaurants where large amounts of oil mist exist, cleaning is
necessary because the unit inside (heat exchanger) is dirty.
(Contact your dealer.)
• Defrost operation is in process.
• Fan rotation makes operation smooth.
• The fan may rotate to dry the heat exchanger depending on
the setting.
• When air discharge temperature is low during heating
operation, or during defrost operation, horizontal wind flow is
made automatically.
• The flap position may be set individually.
• The flap moves to the standard position once, and then turns
to the set airflow direction.
• Dust accumulated inside the indoor unit is discharged.
• This is for operation check in order to confirm whether the fan
motor rotation is within the range of use.
• Operation is not activated for the first approx. 3 minutes
because the compressor protection circuit is activated.
• Defrost operation is in process.
• This is for smooth operation.
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