Toshiba RAS-M10GDCV-E Service Manual page 49

(4) How to examine whether remote controller is good or bad
<Preliminary check>
1. Does setting (A/B) of the remote controller selection match with that indoor unit (switch panel) ?
Operation
Check Items
Considerable main cause
Measures
Item by symptom
Is there direct
sunlight on the
NO
remote controller
sensor of the air
conditioner?
YES
Is there any
thyristor
fluorescent light
near by?
Keep the air
conditioner away
Avoid direct from thyristor
sunlight.
fluorescent light.
YES
NO
NO
YES
Is the operation
enabled by setting
NO
the TEMPORARY switch
at the air conditioner side
to COOL or AUTO?
YES
Can any signal tone
be heard in a transistor
radio when transmitting
within 5cm distance
from the radio?
YES
Replace the
P.C. board.
Push the START/STOP button.
Does the transmission
indicator of remote
controller light?
Is operation
possible when the
transmitter is moved
nearer to the infrared
signal receiver of the
air conditioner?
YES
Battery life
NO
Replace the
battery.
– 49 –
NO
Push the RESET button at
the lower part with tip of
pencil, etc.
Push the START/
STOP button
Does the
transmission
indicator light?
YES
Is there any
NO
receiving sound
and operation?
YES
Remote controller
is failure.
Replace the
Normal
remote controller.
NO