Toshiba RAS-10SAV-A Service Manual page 68

(3) Only the indoor fan does not operate.
<Check procedure>
Shut off the
power supply once.
Turn the power supply.
NO
Does the fan stop in
no operating status?
YES
Start the operation
with low fan setting
in cool operation.
NO
Does the fan rotate?
YES
Change the setting of
cooling to high fan.
NO
Does the fan speed
become higher?
YES
Normal
Control P.C. board is defective.
Does AC 120 V
or higher voltage apply
to between red and black
lead of fan motor?
YES
Shut off the power supply.
Does the cross flow
fan rotate normally?
YES
Turn on the power supply.
Operation
stops
Is the rotation signal (DC+5 V 0 V)
output between 2 (gray lead wire)
and 3 (brown lead wire) of the motor
connector (CN11) when rotating the
cross flow fan by hand in no operating
status? (1 pulse/one turn)
YES
Replace the control
P.C. board.
– 67 –
Does connecting
terminal, connecting
cable or power supply
NO
cord completely?
Does not found the short
wire about connecting
cable and power cord?
YES
Repair the
NO
bearing of
the fan.
Motor control circuit failure
(IC31, D301) or 12 V
switching module failure (T101).
Replace the P.C. board.
NO
Replace the fan motor.
FILE NO. SVM-07008
Replace the P.C. board.
NO
Replace connecting the
cable (or power cord)
and terminal
block.