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Goodman GSX160301 Thermistor
A thermistor is a certain type of resistor that has a varied resistance that changes as it depends on the amount of, or lack thereof, heat. They tell the circuit board when the temperature has been reached. The furnace or AC reads the temperature in order to understand what is going on.
Key clues of a dying thermister
- Blower fan refuses in the attempt to ramp up to full speed
- The heating and AC system may not even start due to any one thermistor that is stuck open
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