LG LFX25973 Series Service Manual page 28

8-6 Freezer Fan Error (Er FF)
No
1 Reset the unit and
Input Test 1 Mode.
(Push the button 1 time)
2 Open the freezer door and Check the air
flow.
※ While an error code is displayed, the
fan is not working.
3 Check the Fan motor.
4 Check the Fan motor voltage.
Checking flow
(1)Pin8, (2)Pin10, (3)Pin12
<CON7>
Result & SVC Action
Rotate fan using your hand.
It feel sticky, change the motor.
(cause of ice or rust inside of motor)
Point
(2) ~ (3) Below 7 V
(1) ~ (3) 0 or 5 V
- 28 -
Status SVC Action
No windy Go to 3
Windy Go to 4
Result SVC Action
Change the PCB
Change the motor