Diagnosis Through Schematic - LG LDE3031ST Service Manual

DIAGNOSIS THROUGH SCHEMATIC

Symptom : Door Lock Fail
(F-10, F-20)
Symptom : Sensor Error or
no Heating (F-1, F-2, F-9, F-19)
- Check : Sensor Resistance
(Approximately 1.06kΩ at 65F
~ 1.12kΩ at 85F)
6-1
Symptom : Oven Lamp not
operating
- Check : Lamps coil's resistance :
Normal : approximately 20~40Ω )
Symptom : No heating
(F-9, F-19)
- Check : Heater and Relay
Open/ short
Symptom : Oven hot
(F-6, F-16)
- Check : Heater Relay Short
Symptom : Cooktop no
Heating
- Vheck : Heater and
Relay Open / Short
Symptom : Dead
- Check : Open
Normal : Short
Symptom : Dead
- Check : Open /short