MITSUBISHI ELECTRIC P500YMF-C - Manual (Page 94)

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2) Temperature Sensor
Thermistor troubleshooting flow
Start
Disconnect applicable thermistor
connector from the board.
Measure temperature of applicable
thermistor (actual measured value).
Check thermistor resistance value.
Compare temperature for thermistor
resistance value with actual mea-
sured valued.
No
difference?
Insert applicable thermistor connector
into board, and check sensor input
temperature on LED monitor for differ-
ence.
No
difference?
No abnormality.
Change thermistor.
Check for connection
problem.
Change the controller
board.
Note 5
Yes
No
No
Yes
Note 4
Note 2
Note 1
Note 3