Oven/Bake Over Temperature (Diagnostic Chart) - GE SCA1000 Technical Service Manual

Does lower heater
Normal. YES
Check relay RY9
Grounded heater
circuit on main
NO
PCB side of
heater.
Oven/Bake Over Temperature
Set Oven/Bake for 250° F.
cycle off at YES
250° F? Does upper heater cycle off
NO
on main PCB.
YES
Is relay stuck
closed?
Check relay RY7
Press start.
NO
at 250° F?
Check thermistor
Replace main
PCB.
Grounded heater
circuit on sub PCB
– 46 –
on sub PCB.
Replace main
YES
Is relay stuck
closed?
NO
resistance.
NO
Thermistor OK?
YES
side of heater.
PCB.
Replace
thermistor.