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Carrier 38GXC009 Thermistor
A very basic thermistor is a specific kind of resistor that has a fluctuating resistance that is directly proportioned to current temperature. The furnace or AC takes the temperature in order to make sure everything is running smoothly. They tell the system control board when a certain temperature has been reached.
Key symptoms of a weak Carrier thermister
- The heating and AC system may never start up depending on which is the bad thermistor
- The blower refuses in the attempt to ramp up the airflow
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