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International Comfort Products PGME42G0905 Thermistor
A very basic thermistor is a thermal resistor, whose resistance will fluctuate depending on the temperature at its location. The main control board must know the temp in order to know what to do next. They convey to the HVAC system when the temperature reaches a certain point.
Symptoms your thermister will have to be replaced
- The main fan could fail in its attempt to ramp up to full speed
- The entire system may not initiate the starting sequence depending on which is the thermistor that is the problematic one
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