Troubleshooting - Panasonic S-M20PY3E Operating Instructions Manual

Troubleshooting

Check before consulting or requesting services.
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
Airflow direction cannot be set.
direction
Airflow direction cannot be changed.
Dust is discharged.
Humming noise comes out.
is not displayed on the remote
controller.
controller.
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.
10
Symptom
is displayed on the remote
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.
• Fan may sometimes rotate in internal cleaning operation mode
for a while.
• When air discharge temperature is low during heating
operation, or during defrost operation, horizontal wind flow is
made automatically.
• Dust accumulated inside the indoor unit is discharged.
• This is the sound of nanoe™ X being discharged.
• Has nanoe™ X been set to OFF?
→ Set to ON.
• nanoe™ X is considered abnormal.
(Contact your dealer.)
• 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.