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International Comfort Products PHF024K000A Thermistor
A thermistor is a certain type of resistor that has a swinging resistance is dependent on the actual temperature is perceives. They tell the main board when a temperature reaches a certain point. The furnace or AC deciphers the temp in some specific areas of the system to make a decision on what needs to be done.
Warnings of a deteriorating temp regulating thermister
- The initial sequence may never start up due to a thermistor that is the problematic one
- The main blower may refuse in the attempt to engage full speed
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