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SERVICE CALL Q & A
Cooling operation
A1
Check whether frost sticks
on the heat exchanger of
unit or not.
Wait for 3 - 4 minutes until
the frost melts.
While cooling, the com-
pressor sometimes stops
abruptly.
Q1
If cooling is performance
when the room tem-
perature is low, frost may
stick on the heat
exchanger of unit.
Dehumidifying operation
The fan speed does not
change during a dehumi-
difying operation.
Q2
A2
The fan speed is always
QUIET at a dehumidifying
operation.
A3
To improve the dehumidifica-
tion efficiency, QUIET fan
speed operation is
performed. Therefore the air
is cold. This is not a trouble.
Q3
A4
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 tempera-
ture > room temperature
setting
The operation is according to
the room temperature setting
on the remote controller.
2) *When actual room < room
temperature setting
Regardless of the room
temperature setting, the
temperature is automatically
set slightly lower than the
room temperature.
In this case, the status in 2) is
the case and, therefore, the
operation by the room tempera-
ture control is impossible. Turn
off the ON/OFF button, set the
room temperature to a new
value and turn on the operation
by the ON/OFF button.
The operation does not
stop even by raising the
room temperature setting
of remote control at a
dehumidifying operation.
Q4
Cold air comes out
during a dehumidifying
operation.
A5
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.
In the dehumidifying mode,
the remote controller is set
slightly higher than the room
temperature but the opera-
tion starts.
Q5
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