– 22 –
Push the START/STOP button
Does the transmission
indicator flash?
Is operation possible
when the transmitter is
moved nearer to the
infrared signal receiver
of the air conditioner?
YES
Keep the air conditioner
away from thyrstor
fluorescent light.
Normal
Is there direct sunlight
on the receptor of the
air conditioner?
Is there any thyristor
fluorescent light near by?
Is operation possible when
setting the control operation
switch of the air conditioner main
unit to "COOL" or "AUTO"?
Can any signal tone be heard in
a transistor radio when
transmitting within 5cm distance
from the radio?
Avoid direct
sunlight.
NO NO
PC board is failure.
Battery life
Push the all clear button (ACL) on the
wireless remote control with a tip of pencil
for more than 3 seconds.
Does the transmission
indicator light?
Is there any reception
tone and operation?
Replace the
batteries.
Remote control
is failure.
Replace
remote control
Replace
PC board.
NO
YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
There is no reception tone from
the receptor.
The operation lamp of the air
conditioner main unit does not
light.
After battery replacement, shortcircuit
the metal terminal at the side of the
battery compartment (all-clear terminal)
with a pencil.
Note:
NO
YES
8-5. How to Check the Remote Control (Including the Indoor PC Board)
