Panasonic S-22MU2E5BN Installation Instructions Manual page 63

Care: After a prolonged idle period
Check the indoor and outdoor unit air intakes and outlets for blockage; if there is a blockage,
remove it.
Care: Before a prolonged idle period
● Operate the fan for half a day to dry out the inside.
● Disconnect the power supply and also turn off the circuit breaker.
● Clean the air filter and replace it in its original position.
● Outdoor unit internal components must be checked and cleaned periodically. Contact your
local dealer for this service.
■ 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
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 accumulated 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.
The indoor unit fan is running and does not stop
when ON/OFF operation button on remote controller
is pressed.
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
Humming noise comes out.
is not displayed on the remote controller. ● Has nanoe™ X been set to OFF? → Set to ON.
is displayed on the remote controller.
● 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 accumulated
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 rotate because of drying heat exchanger due to
settings.
● Fan may sometimes rotate in internal cleaning operation mode for a
while.
● The refrigerant may be leaking. If R32 refrigerant leakage detection
sensor is connected and the refrigerant leaks, P08 alarm and
inspection mark will be displayed on the remote controller and the fan
will automatically operate. Please ventilate the room without turning
off the earth leakage circuit breaker and contact the service dealer for
assistance.
● Are you using gas equipment (propane, butane, methane, etc.) and
sprays near R32 refrigerant leakage detection sensor? R32 refrigerant
leakage detection sensor could lead to false detection and the fan
may start rotating. Please contact the service dealer for assistance.
● 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 the sound of nanoe™ X being discharged.
● nanoe™ X is considered abnormal. (Contact your dealer.)
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Cause