LG LFXS30726S - Page 64

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TEST MODE 1 Voltage [V]
CON7
8
th
pin ~ 12
th
pin
Not 0V, 5V
6
Check the Fan Motor voltage
Is Fan Motor voltage 8~12V?
Yes
Replace
Main PCB
No
TEST MODE 1 Voltage [V]
CON7
10
th
pin ~ 12
th
pin
8~12V
7
Check the Fan Motor voltage
Is Fan Feed Back voltage 1~5V?
No
Change the
motor
Yes
8
Explain to customer