Troubleshooting
56
Samsung Electronics
Yes
).
t
n
o
c
(
)
5
7
4
E
,
8
5
4
E
(
r
o
r
r
e
n
a
F
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
4-8
Troubleshooting