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SERVICE CALL Q & A
While cooling, the
compressor sometimes stops
abruptly.
Q1
Check whether frost sticks
on the heat exchanger of
indoor unit or not.
Wait for 3 – 4 minutes until
the frost melts.
A1
If cooling is performance
when the room tempera-
ture is low, frost may stick
on the heat exchanger of
indoor unit.
Cooling operation
The fan speed does not
change during a dehumidifying
operation.
Q2
Dehumidifying operation
The fan speed is always LO
at a dehumidifying operation.
A2
Cold air comes out during a
dehumidifying operation.
Q3
To improve the dehumidi-
fication efficiency, LO
fan speed operation is
performed. Therefore the air
is cold. This is not a trouble.
A3
The operation does not stop
even by raising the room
temperature setting of re-
mote control at a dehumidify-
ing operation.
Q4
At a dehumidifying operation,
the actual room temperature
is compared with the room
temperature setting when
starting the operation and the
operation is as follows.
1) When actual room temper-
ature > room temperature
setting.
The operation is according
to the room temperature
setting on the remote con-
troller.
2) * When actual room tem-
perature < room tempera-
ture setting
Regardless of the room
temperature setting, the
temperature is automati-
cally set slightly lower than
the room temperature.
In this case, the status is as
2) and, therefore, the operation
by the room temperature con-
trol is impossible. Turn off the
On / OFF switch, set the room
temperature to a new value
and turn on the operation by
the On / Off switch.
A4
In the dehumidifying mode,
the temperature set by
remote controller is set
slightly higher than the
room temperature but the
operation starts.
Q5
This is the status in 2) of
(A4). The temperature is set
a little lower than the room
temperature to carry out a
dehumidifying operation as
far as possible.
A5
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