Oven Does Not Heat, F9, F19 - LG LDE4413ST Service Manual

Oven does NOT heat, F9, F19

Unplug the unit
1
Is the Connector disconnected
or loose?
(1) Between Main PCB and
Relay PCB (CN51)
(2) Electric wiring of relay PCB
All taps.
(3) Electric wiring of electric element
CN51
No
TROUBLESHOOTING
Reconnect.
If defective harness,
Yes
Replace or fix
CN51
All Taps
Upper Broil
Upper Bake
Lower Broil
Conv. heater
2
Is the connection of heater
normal?
Measure the resistance
of each heater.
(The resistance is shown
below)
7-7
Replace the
No
Failed heater
Upper Broil
Upper Bake
Conv. heater
Lower Broil