Simple Checking Method In Case Of Abnormal Motor Operation; The Motor Does Not Rotate Or The Rotation Is Not Smooth - Toshiba AW-SD150SBA Service Manual

Actions to be taken when the motor and
clutch switching were judged to be normal
If the motor and clutch switching were judged to be normal, check whether or not there is no abnormality on
wiring connection (incomplete connection of connector or incomplete contact etc.) again.
When an abnormality cannot be identified due to the reason of occasional abnormal occurrence, etc., check
the number of abnormality occurrence and observe the situation for a certain period of time.
(It is suspected that the abnormality is due to certain usage condition including excessive washing load or
condition of clothes.)
How to check the number of abnormality occurrence: Refer to Page 3

Simple checking method in case of abnormal motor operation

Failure of drive circuit inside the electronic unit, abnormal motor coil, disconnected wiring and incomplete
contact, etc. are suspected to be a cause of abnormal motor operation. Carry out the check by the following
methods.

The motor does not rotate or the rotation is not smooth.

Remove 3 of 1P connectors CN4 – 6 (red, blue, purple) of the electronic unit.
Check the resistance value among 3 removed connectors. (Resistance value: 10 ~ 20 )
Normal
Electronic unit failure
Resistance value: Larger
Remove the rear lid and remove 3 of 1P
connectors (red, blue, purple).
Then check the resistance value among
3 terminals on the motor terminal.
20 and above
10 ~ 20
Disconnected wiring or
incomplete contact
Abnormal
Resistance value: Smaller
Remove the rear lid and remove 3 of 1P
connectors (red, blue, purple). Then
check the resistance value among 3
terminals on the motor terminal.
(ex: Between red and blue)
No continuity
Motor failure
– 3 –
There is continuity
Defective wiring insulation