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International Comfort Products PGF048K080F Thermistor
In an HVAC system, a thermistor is a thermal resistor, that has a fluctuating resistance that is contingent on the heat. They can tell the heating and cooling system when a temperature in increasing or decreasing. The HVAC system reads the temperature in several different areas to make sure everything is running smoothly.
Major indications the temp-regulating thermister is going out
- Main blower refuses in the attempt to engage full speed
- The whole HVAC system may not even start depending on which is the failed thermistor
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