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International Comfort Products GPFM36H100F Thermistor
In an HVAC system, a thermistor is a thermal resistor, whose rated resistance is altered by current temperature. They notify the HVAC system when a temperature has been reached. The system control board needs to know the temperature in a few critical areas to understand what is going on.
Clues to watch for to know your thermister is going to die
- The main fan refuses in its attempt to ramp up the airflow
- The system may not even begin to function due to a broken thermistor
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