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EdgeStar AP12000HS Thermistor
In an HVAC system, a thermistor is a specific kind of resistor that has a swinging resistance is directly proportioned to thermal temperature. They can tell the circuit board when a certain temperature in increasing or decreasing. The heating system needs to know the temperature in order to do its job correctly.
How do you know when your system thermister has to be replaced?
- Primary blower could fail in the attempt to ramp up the airflow
- The heating and AC system may not even start depending on which is the thermistor that is the problematic one
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