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International Comfort Products H9MPV100J20A1 Thermistor
A thermistor is a type of resistor whose resistance varies depending on the actual temperature is perceives. They inform the system control board when the temperature reaches a certain point. The system control board needs to know the temperature in some specific areas of the system to understand what is going on.
Signs your all-important thermister will need replacing
- The whole HVAC system could possibly never start due to a thermistor that is malfunctioning
- Primary blower could fail in the attempt to get up to full speed
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