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International Comfort Products C9MPV075F12B1 Thermistor
A very basic thermistor is a specific kind of resistor that has a varied resistance that changes as it depends on current temperature. They notify the system control board when a certain temperature reaches a certain point. The HVAC system must know the temp in a few critical areas to know what to do next.
Major signs the system thermister will have to be replaced
- Main blower refuses in the attempt to get up to full speed
- The system may never start up because of any broken thermistor
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