LG LDE3031ST Service Manual page 63

CHECKING FLOW CHART BY FAIRURE
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
Check the looseness of CN08
1
No
Normal?
Yes
No
Normal?
Yes
2
9-16
Replace the door locking
motor
END
Reconnect
END