LG LRGL5821S Service Manual page 57

CHECKING FLOW CHART BY FAILURE
Oven too hot error  F-6 error
F6(Oven Hot)
Unplug the unit
1
Check the DLB Relay damage
(measure the resistance)
TAB11
Normal
Continuity
Yes
TAB12
Abnormal
Infinite
No
10-13
Replace the Main PCB
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