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Operation Manual
SiMT041311E
115
Installation / Operation Manual
41
FAQ
Indoor unit
Operation does not start soon.
When the mode was reselected.
Commonly occurring sounds
A hissing sound
Roaring sound
Roaring sound
Hissing or cracking sound
X
Page 24
Outdoor unit
The outdoor unit emits water or steam.
In HEATING operation
The flaps do not start swing immediately.
• The air conditioner is adjusting the flaps position. The flaps
will start moving soon.
The air conditioner stops generating airflow
during operation.
• Once the set temperature is reached, the airflow rate is
reduced and operation stopped in order to avoid generating
cool airflow (during heating) or in order to keep the humidity
from rising (during cooling). Operation will resume
automatically when the indoor temperature rises or falls.
When AUTO button, direct operation buttons or FAN
ONLY button was pressed soon after operation was
stopped.
• This is to protect the air conditioner. You should wait for
about 3 minutes.
The HEATING operation stops suddenly and
a flowing sound is heard.
• The outdoor unit is taking away the frost. The HEATING
operation starts after the frost on the outdoor unit is
removed. You should wait for about 3 to 10 minutes.
• The frost on the outdoor unit melts into water or steam when the air conditioner is in
defrost operation.
In COOLING or “SARARA” DRY operation
• Moisture in the air condenses into water on the cool surface of outdoor unit piping
and drips.
• This is a sound generated when humidified air or
ventilated air is discharged.
• Operating sound may vary depending on the outdoor
temperature or humidity.
• This is a sound of ventilating operation. (When ventilating
operation is combined with COOLING/HEATING
operation, it is possible to stop only ventilating operation.)
• This is a sound of streamer discharge.
• This is a sound of the dust brush rubbing the air filter to
remove dust from the air filter in CLEANING FILTER
operation.
Clicking sound while the air conditioner is or is not in
operation
A sound like a flow of water
Ticking sound
Clopping sound
Whistling sound
Blowing sound
• This is a sound of operation of the electric components or
valve that controls the refrigerant.
• This is a sound of the refrigerant flowing in the air
conditioner.
• This is a pumping sound of the water in the air conditioner
and heard when the water is pumped out from the air
conditioner in cooling or drying operation.
• This is a sound generated when the direction of the flow of
the refrigerant changes in the air conditioner.
• This is a sound generated when the air conditioner slightly
expands or shrinks due to temperature change.
• This is a sound that comes from the inside of the air
conditioner when the ventilating fan is operated with the
room closed. This sound may decrease when the window
is opened or the ventilating fan is stopped.
• This is a sound generated when the refrigerant flows
during defrosting operation.