LG LFXS30796 Series - Page 49

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TEST MODE 1 Voltage [V]
CON7
8
th
pin ~ 12
th
pin
Not 0V, 5V
Freezer Fan Error (E FF)
1
2
Open the freezer door and Check
the air flow. Windy?
No
Yes
4
Check the Fan Motor voltage
Is Fan Motor voltage 11.4~12.6V?
Yes
3
Check the Fan motor.
Rotate fan using hand.
It feel sticky?
Yes
Change the
Fan motor
Replace
Main PCB
No
Reset the unit and
Input Test1 Mode.
(Push the button 1 time)
Go to 3
Fan Motor
TEST MODE 1 Voltage [V]
CON7
10
h
pin ~ 12
th
pin
11.4~12.6V
5
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
No
Change the
motor
Yes
TEST MODE 1 Voltage [V]
CON7
4
th
pin ~ 5
th
pin
Not 0V, 5V
6
Check the Fan Motor voltage
Is Fan PWM voltage 0V, 5V?
No
Replace
Main PCB
Yes
7
Explain to customer
Go to 4