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Carrier 25HNA660A0030020 Thermistor
A thermistor is a specific kind of resistor whose resistance changes as it depends on current temperature. They convey to the main board when a temperature in increasing or decreasing. The main control board needs to know the temperature throughout the whole system to make a decision on what needs to be done.
What happens when my Carrier thermister is almost going bad?
- The blower may fail in the attempt to ramp up the airflow
- The entire system could possibly not operate because of the improperly set thermistor
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