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International Comfort Products FBF050B12A2 Thermistor
A thermistor is a thermal resistor, which has a resistance that varies depending on the heat. They tell the system control board when the temperature reaches a certain point. The furnace or AC interprets the temperature in order to know what to do next.
Do you know if your temp regulating thermister is about to stop working?
- No component could possibly not operate due to a thermistor that is stuck open
- The system blower may refuse to begin to get up to full speed
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