LG LSSB2791ST Service Manual page 42

TROUBLESHOOTING
2. Troubleshooting With Error Display
11) Refrigerator Fan Error(Er rF)
No
1 Reset the unit and Input Test 1 Mode.
(Push the button 1 time)
Open the freezer door and Check the air flow.
2
※ While an error code is displayed, the fan is
not working.
Check the Fan motor.
3
Check the Fan motor voltage. Pin14(2),
Pin16(3), Pin18(1) of CON6.
4
CON 6
Checking flow Result & SVC Action
Rotate fan using your hand.
It feel sticky, change the motor.
(cause of ice or rust inside of motor)
(2)~(3)
(1)~(2)
42
Status
SVC Action
No windy
Go to 3
Go to 4
Windy
Result
SVC Action
Below 8V Change the PCB
0 or 5V Change the motor