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Carrier FF1DNA018000AAAA Thermistor
A very basic thermistor is a thermal resistor, that has a varied resistance that is dependent on the temperature. They can tell the system when the temperature reaches a certain point. The furnace or AC reads the temperature in a few critical areas to know what to do next.
Major indications of an ailing thermister
- Main blower could never begin in the attempt to get up to full speed
- The entire system may not initiate the starting sequence due to any one malfunctioning thermistor
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