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Carrier 25HPA418A0030010 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor which has a resistance that is governed by current temperature. They notify the system when the temperature has been reached. The HVAC system reads the temperature in a few critical areas to understand what is going on.
Major clues the temp-regulating thermister will eventually need to be replaced
- The initial sequence may not operate because of any stuck thermistor
- Main blower may refuse in the attempt to ramp up
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