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Payne PY2PNB036090AA Thermistor
In an HVAC system, a thermistor is a specific kind of resistor whose resistance is solely dependent on current temperature. They tell the main board when the temperature has been reached. The system control board needs to know the temperature in several different areas to understand what is going on.
Major symptoms the temp-regulating thermister is in dire straights
- The system blower refuses to begin to ramp up
- The whole system may not operate due to a malfunctioning thermistor
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