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International Comfort Products PGMD42H060A Thermistor
In an HVAC system, a thermistor is a type of resistor that has a fluctuating resistance that fluctuates depending on the heat. The system control board needs to know the temperature throughout the whole system to understand what is going on. They tell the system control board when the temperature in increasing or decreasing.
Major warnings the system thermister has very little life left
- The main blower may refuse to begin to ramp up
- No component could possibly never start because of the thermistor that is damaged
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