Door Lock System Failure,F10 Or F20 - LG LUTE4619SN Service Manual

Door Lock System Failure,F10 or F20 ?

Plug in the unit
Note :
Just after self-clean start, the door lock motor starts to
rotate.
During this time if the door lock switch does NOT
operate properly after rotating twice, then supervising
circuit detects a Door Lock failure and the F10 or F20
error code appears.
1
Check the operation of door lock motor.
Press Lower Clear/Off button for 3 seconds.
and try to open the door.
Does the door open?
Door lock icon turns on.
No
It is normal.
Check the wiring
TROuBLEShOOTING
Yes Go to No 2
8-12
Unplug the unit
2
Is the Connector disconnected or loose?
Check the following:
(1) Between Main PCB and Relay PCB (CN51)
(2) Electric wiring CN52 and CN53 of relay
PCB
(3) Electric wiring of Locking Motor and Micro
Switch
(4) Electric wiring of CN60 and CN61 of Main PCB
CN52
CN53
CN60
CN61
No
Reconnect.
If defective harness,
Yes
replace or fix