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International Comfort Products APFM36K000A Thermistor
A thermistor is a certain type of resistor that has a swinging resistance fluctuates depending on the amount of, or lack thereof, heat. The HVAC system interprets the temperature throughout the whole system to make a decision on what needs to be done. They inform the system control board when a temperature reaches a certain point.
Some warnings your thermister has little life left
- The blower refuses to begin to begin full speed blowing
- The heating and AC system could possibly not operate due to a bad thermistor
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