LG LRE3085ST Service Manual page 70

CHECKING FLOW CHART BY FAILURE
3
Is the door lock switch
(micro switch) normal?
measure the resistance of
door lock switch normally open type
4
Is the resistance of the
lock motor normal ?
measure the resistance of
lock motor
Normal : approximately 2.6kΩ
Abnormal : infinite or below 5
Replace the Relay PCB
No Replace the
micro switch
Normal Abnormal
Yes
No Replace the
lock motor
Ω
Yes
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