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Carrier 58MCB100 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor whose resistance is governed by the amount of, or lack thereof, heat. The system control board needs to know the temperature in order to do its job as it should. They inform the HVAC system when a certain temperature reaches a certain point.
Key clues of a worsening thermister
- No component may never start up depending on which is the improperly set thermistor
- The blower may fail to begin to engage full speed
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