LG LFX28979 SERIES Service Manual page 30

8-7 Icing Fan Error (Er IF)
No
1 Reset the unit and
Input Test 1 Mode.
(Push the button 1 time)
2 Open the refrigerator door and Check the
air flow.
※ While an error code is displayed,
the fan is not working.
3 Check the Connector.
(Frozen caused the PCB short)
4 Check the Fan motor.
(Frozen, Lock, ect.)
5 Check the Fan motor voltage.
Checking flow
(1)Pin1, (2)Pin3, (3)Pin5
<CON7>
Result & SVC Action
Point
(2) ~ (3) Below 7 V
(1) ~ (3)
- 30 -
Status SVC Action
No windy Go to the 3,4
Windy Go to the 5
Result SVC Action
Change the PCB
0 or 5 V Change the motor