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21
When the Need Arises
FAQ
Indoor unit
Outdoor unit
Operation does not start soon.
When
or any direct operation button
was pressed soon after operation was
stopped.
When the mode was reselected.
• This is to protect the unit.
You should wait for about 3 minutes.
The fl ap does not start swinging
immediately.
• The unit is adjusting the position of the fl ap. The fl ap will
start moving soon.
Diff erent sounds are heard.
A sound like fl owing water
• This sound is generated because the refrigerant in the
unit is fl owing.
• This sound is generated when the water is fl owing away
from the unit during COOL or DRY operation.
Blowing sound
• This sound is generated when the fl ow of the
refrigerant in the unit is switched over.
Ticking sound
• This sound is generated when the cabinet and frame
of the unit slightly expand or shrink as a result of
temperature changes.
Whistling sound
• This sound is generated when refrigerant fl ows during
defrosting operation.
Clicking sound during operation or idle time
• This sound is generated when the refrigerant control
valves or the electrical parts operate.
Clopping sound
• This sound is heard from the inside of the unit when the
external device sucks the air out of the room (e.g. exhaust
fan, extractor hood) while the doors and windows in the
room are closed. Open the doors or window or turn off the
device.
The outdoor unit emits water or steam.
In HEAT operation
• The frost on the outdoor unit melts into water or steam when the unit is in
defrosting operation.
In COOL or DRY operation
• Moisture in the air condenses into water on the cool surface of the outdoor
unit piping and drips.
HEAT operation stops suddenly
and a
fl owing sound is heard.
• The outdoor unit is defrosting. HEAT operation starts
after the frost on the outdoor unit has been removed.
This can take about 4 to 12 minutes.
The unit stops generating airfl ow
during operation.
• Once the set temperature is reached, the airfl ow rate is
reduced and operation stopped in order to avoid
generating cool airfl ow (during heating) or in order to
keep the humidity from rising (during cooling).
Operation will resume automatically when the indoor
temperature rises or falls.
• The following cases are not unit troubles but have some reasons. You may just continue using it.
Summary of Contents for FTXTP25K3V1B
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