Toshiba Carrier RAS-12EKCV-UL Service Manual page 81

(5) Troubleshooting for remote controller
<Primary check>
Check that A or B selected on the main unit is matched with A or B selected on the remote controller.
Is receiver
NO
on indoor unit
exposed to
direct sunlight?
YES
fluorescent light
Keep indoor unit
Avoid direct
sunlight. fluorescent light.
Is there any
NO
nearly?
YES
Does A/C operate?
NO
by push RESET button
of indoor unit.
YES
Point remote to
digital camera can
see infrared at sending
LED on carmera monitor
when push [ ] button?
Replace main
P.C. Board
Reciver P.C. board
is defective.
away from
Replace reciver
P.C. board.
Push the [ ] button.
Is transmission
mark indicated?
YES
Does indoor unit
operate when moving
NO
remote controller
near receiver or
indoor unit?
YES
Batteries are
exhausted.
NO
NO
YES
Replace
batteries.
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FILE NO. SVM-13071
The unit does not beep at all.
Operation lamp on indoor
unit is not indicated.
NO
Reset by take off
battery the push
[ ] button till LCD
indication disclear
put battery again.
Push the
[ ] button
NO
Is transmission
mark indicated?
YES
Does indoor unit
beep and operate?
YES
Remote controller
is defective.
Replace
Normal
remote controller.
operation