Download AIR-CONDITIONER

9-4. How to Check the Remote Control (Including the Indoor P.C. Board)
There is no beep from
the indoor unit.
The operation lamp of
the air conditioner main
unit does not light.
Push the START/STOP button.
Does the transmission
indicator blink?
NO
YES
Is there direct
sunlight on the
receptor of the
air conditioner?
Short-circuit the metal
terminal at the side of the
battery compartment
(all-clear terminal) with a pencil.
(wait about 10 seconds)
NO
YES
Is there any
thyristor
fluorescent light
near by?
NO
NO
YES
Is operation
possible when the
transmitter is moved
nearer to the infrared
signal receiver of the
air conditioner?
Push the START/
STOP button
YES
Battery life
NO
Does the
transmission
indicator light?
Is operation
possible when setting
the temporary switch of the
air conditioner main unit to
“TEST RUN” or
“TEMPORARY AUTO”?
NO
YES
NO
YES
Is there any
beep and
operation?
YES
Can any signal tone
be heard in a transistor
radio when transmitting
within 5cm distance
from the radio?
NO
YES
Remote control
is failure.
P.C. board is failure.
Avoid direct
sunlight.
Keep the air
conditioner away
from thyristor
fluorescent light.
Replace
P.C. board.
Replace the
batteries
Normal
Note: After battery replacement,
shortcircuit the metal terminal at
the side of the battery compartment
(all-clear terminal) with a pencil.
– 51 –
Replace remote
control.