Thermistor Test (Diagnostic Chart) - GE PSC21MGM Technical Service Manual

Run Service Diagnostic Test (0-7)
Thermistor test - see page 33 for entering
diagnostic mode
Do all thermistors available on specific
model pass diagnostic test?
No
Did diagnostic test show O?
( open sensor )
No
Did diagnostic test show S?
( shorted sensor )
No
Did diagnostic test show B?
( bad 5VDC circuit )
Thermistor Test
Verify thermistors are within
Yes
temperature/resistance chart
Check wiring connections for an open
Yes
circuit. If OK, replace thermistor.
Check wiring connections for a short
Yes
in the circuit. If OK, replace thermistor.
Replace
Yes
main board
– 53 –
proper range using
on page 54