LG LDG3015SB Service Manual page 65

CHECKING FLOW CHART BY FAILURE
Door lock system error → → F-10, F-20 Error
Check the door locking motor (measure the resistance)
normal: approximately 2.6 kΩ
abnormal: infinite or below 5 Ω
Normal?
Check the looseness of CN51
Normal?
1
No
Yes
No
Yes
2
10-11
Replace the door locking
motor
END
Reconnect
END