LG LRG4111ST Service Manual page 54

Oven does NOT heat, F9
Unplug the unit
1
Is the Connector disconnected
or loose?
(1) Electric wiring of Main
PCB All taps.
(2) Electric wiring of electric
element
Broil igniter
Conv. bake igniter
TROUBLESHOOTING
Reconnect. If
Yes
defective
harness,
Replace or fix
No
2
ICheck the resistance
of each igniter. Normal?
(Measure the resistance after
cooling down.
The resistance is shown below)
Conv. bake igniter
8-7 8-7
No
Replace the
failed igniter
Broil igniter
yes