Filter
Top Products
– 49 –
NO
YES
Push the START/STOP button.
Does the transmission
indicator of remote
controller light?
There is no beep from
the indoor unit.
The operation lamp of
the air conditioner main
unit does not light.
Is there direct
sunlight on the
receptor of the
air conditioner?
Avoid direct
sunlight.
Is there any
thyristor
fluorescent light
near by?
Keep the air
conditioner away
from thyristor
fluorescent light.
Is operation
possible when the
transmitter is moved
nearer to the infrared
signal receiver of the
air conditioner?
Battery life
Can any signal tone
be heard in a transistor
radio when transmitting
within 5cm distance
from the radio?
Does the transmission
indicator light?
Replace
P.C. board.
Replace the
battery.
Normal
Remote
controller
is failure.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Is Temporary Cool
operation possible when
keeping the temporary
switch of the air conditioner
main unit pressed for
10 seconds or more?
Push the START/
STOP button
Item by symptom
Operation
Check Items
Considerable main cause
Measures
Is there any receiving
sound and operation?
Take out the batteries and
insert them again.
(rear side of remote controller)
(5) How to examine whether remote controller is good or bad