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International Comfort Products PHF036K000A Thermistor
In an HVAC system, a thermistor is a type of resistor whose rated resistance depends on the current temperature. The furnace or AC needs to know the temperature in order to ensure that things are as they should be. They convey to the system when the temperature in increasing or decreasing.
Symptoms your all-important thermister is going out
- Primary blower could never begin to begin to ramp up
- The whole system could possibly not even begin because of the stuck thermistor
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