LG LUTE4619SN Service Manual page 98

Oven hot, F6, F16?
Unplug the unit
1
Is the resistance of thermistor normal?
Check:
Pins 4 and 5 of CN60 and pins 5 and 6 of CN61 in
main PCB
Normal- approximately 1.09kΩ at 75ºF(25ºC)
CN61
Yes
TROuBLEShOOTING
Replace the defective
No
Thermistor
CN60
2
Is the Heater relay normal?
Measure the resistance of heater relay and L.
Normal: infinite
Abnormal : shorted
Upper Bake
Heater Relay
Tab 01 and Tab 11 : RY5
Convection
Heater Relay
Tab 02 and Tab 21 : RY11
Yes
8-19
No Replace the Relay PCB
Upper Broil
Heater Relay
Tab 01 and Tab 12 : RY6
Lower Broil
Heater Relay
Tab 02 and Tab 22: RY12