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International Comfort Products PGF048H120F Thermistor
A very basic thermistor is a specific kind of resistor whose rated resistance is contingent on the current temperature. They inform the HVAC system when a temperature reaches a certain point. The furnace or AC must know the temp in several different areas to be sure everything is going well.
What happens when my main thermister is dying?
- Primary blower refuses in the attempt to ramp up the airflow
- The whole system may never start up due to a damaged thermistor
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