Toshiba RAS-M10NKV-E Service Manual page 41

(3) Only the indoor fan does not operate.
(For 10/13k)
<Check procedure>
Shut off the
power supply once.
Turn the power supply.
Does the fan stop in
no operating status?
YES
Start the operation
with low fan setting
in cool operation.
Does the fan rotate?
YES
Change the setting of
cooling to high fan.
Does the fan speed
become higher?
YES
Normal
NO
Control P.C. board is defective.
Does AC 120 V
NO
or higher voltage apply
to between red and black
lead of fan motor?
Shut off the power supply.
Does the cross flow
fan rotate normally?
Turn on the power supply.
NO
Operation
stops
Is the rotation signal (DC+5 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.
NO
YES
Repair the
NO
bearing of
YES
−
0 V)
NO
– 40 –
FILE NO. SVM-05019
Replace the P.C. board.
Does connecting
terminal, connecting
cable or power supply
cord completely?
Does not found the short
wire about connecting
cable and power cord?
YES
temperature rising cause
the fan.
of incompleted connecting.
Motor control circuit failure
(IC05, D38) or 12 V
power circuit failure (IC08).
Replace the P.C. board.
Replace the fan motor.
Replace connecting the
NO
Thermal fuse operated
due to prevent
cable (or power cord),
thermal fuse and
terminal block.