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Payne PH1ZNA024000AAAA Thermistor
A thermistor is a special kind of new age resistor that has a varied resistance that is dependent on the amount of, or lack thereof, heat. The furnace or AC reads the temperature in a few critical areas to do its job as it should. They can tell the heating and cooling system when a certain temperature reaches a certain point.
What signals that my all-important thermister is on its last leg?
- Main blower may refuse to begin to engage full speed spinning
- The heating and AC system could never start up depending on which is the thermistor that is stuck open
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