Trouble Shooting - Mitsubishi Electric CITY MULTI PKFY-NBMU-E2 Manuel D'utilisation

PMFY-P·NBMU-E
Pressing the PUSH button on the outer side of the intake grille
causes the intake grille to open.
forward.

11. Trouble Shooting

Having trouble?
Air conditioner does not heat or cool well.
When heating operation starts, warm air does not blow from the indoor
unit soon.
During heating mode, the air conditioner stops before the set room
temperature is reached.
be set.
A cracking or creaking sound is heard.
The room has an unpleasant odor.
A white mist or vapor is emitted from the indoor unit.
Here is the solution. (Unit is operating normally.)
Check the temperature adjustment and adjust the set temperature.
Make sure that there is plenty of space around the outdoor unit. Is the
indoor unit air intake or outlet blocked?
Has a door or window been left open?
When the outdoor temperature is low and the humidity is high, frost
may form on the outdoor unit. If this occurs, the outdoor unit performs a
defrosting operation. Normal operation should begin after approximate-
ly10 minutes.
During cooling mode, the vanes automatically move to the horizontal
is selected. This is to prevent water from forming and dripping from the
vanes.
During heating mode, the vanes automatically move to the horizontal
ing mode.
tion after detecting the base position.
These sounds can be heard when parts rub against each due to expan-
sion and contraction from temperature changes.
The indoor unit draws in air that contains gases produced from the
walls, carpeting, and furniture as well as odors trapped in clothing, and
then blows this air back into the room.
If the indoor temperature and the humidity are high, this condition may
occur when operation starts.
mist.
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