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Payne PA2PNB030000AA Thermistor
A thermistor is a type of resistor whose rated resistance depends on the temperature. They can tell the circuit board when a temperature reaches a certain point. The furnace or AC reads the temperature throughout the whole system to ensure that things are as they should be.
Warnings the Payne thermister is on its last leg
- Blower motor fails in its attempt to ramp up
- The heating and AC system may not function depending on which is the thermistor that is the problematic one
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