Samsung TDM PLUS - 4-6-4 Fan error (E458, E475) (cont.)

Troubleshooting
82 Samsung Electronics
Yes
).tnoc( )574E ,854E( rorre naF
Yes
Yes
No
No
Cont.
Exchange INVERTER PCB
Exchange the FAN motor
Is the Pin voltage #6 - #3 of CN90 and 91
changed high(4-5V) and low(0-1V) in case of
making manual rotation slowly?
Is the Pin voltage #7 - #3 of CN90 and
91 low(0-1V) in normal rotation?
Exchange INVERTER PCB