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Payne PH3ZNA030000AA Thermistor
In an HVAC system, a thermistor is a thermal resistor, that has a varied resistance that depends on the temperature. The system control board interprets the temperature in a few critical areas to make sure everything is running smoothly. They inform the system control board when a temperature has been reached.
Major indications of a dying temp regulating thermister
- Primary blower could possibly fail in its attempt to ramp up
- The heating and AC system could never start up depending on which is the improperly set thermistor
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Before buying or ordering any Payne PH3ZNA030000AA part, do your due diligence and make sure of the correct model as well as make a visual inspection in order to be sure the correct thermistor is the one being purchased. You do not have to install it yourself. Consult with a professional in your community to hire and install the part for you.
Feel free to download your manual for help.
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