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International Comfort Products PGMD42G0604 Thermistor
In an HVAC system, a thermistor is a thermal resistor, which has a resistance that will fluctuate depending on the heat. They inform the HVAC system when a certain temperature reaches a certain point. The system interprets the temperature in order to understand what is going on.
Main clues the system thermister will soon need to be replaced
- The whole system could possibly never start because of the failed thermistor
- Blower motor could possibly fail in the attempt to ramp up the airflow
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