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Troubleshooting
F
n a
e
r r
r o
E (
5 4
, 8
4 E
5 7
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
56
( )
o c
n
) . t
Cont.
Yes
No
Yes
Yes
No
Troubleshooting
Exchange INVERTER PCB
Exchange the FAN motor
Samsung Electronics
4-8
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Table of Contents
Troubleshooting
