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International Comfort Products T8MPV125J20A1 Thermistor
In an HVAC system, a thermistor is a type of resistor that has a varied resistance that is dependent on the amount of, or lack thereof, heat. The furnace or AC interprets the temperature in some specific areas of the system to know what to do next. They inform the circuit board when a certain temperature reaches a certain point.
Major symptoms the system thermister is going out
- Blower motor refuses in the attempt to ramp up the airflow
- The whole system may not even start depending on which is the inaccurate thermistor
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