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International Comfort Products C9MPD100J20C1 Thermistor
A thermistor is a type of resistor that has a fluctuating resistance that is contingent on the amount of, or lack thereof, heat. They convey to the system control board when a temperature has been reached. The system control board needs to know the temperature in a few critical areas to know what to do next.
Hints your thermister is dying
- The AC and heat system may not initiate the starting sequence because of any thermistor that is the problematic one
- The system blower may refuse in its attempt to begin full speed blowing
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