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Carrier 25HNA948A0030030 Thermistor
In an HVAC system, a thermistor is a thermal resistor, that has a varied resistance that is governed by temperature. The control board takes the temperature in order to do its job correctly. They convey to the main board when a temperature has been reached.
Clues to watch for to know the Carrier thermister needs a replacement ASAP
- The system blower could fail in its attempt to engage full speed
- The whole system may not function due to any one thermistor that is malfunctioning
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