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International Comfort Products HHP460AKA1 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a fluctuating resistance that depends on the temperature at its location. They inform the circuit board when a certain temperature in increasing or decreasing. The HVAC system must know the temp in order to know what to do next.
What warnings should I watch out for to know if my all-important thermister is almost dead?
- The main fan could refuse in the attempt to ramp up to full speed
- The heating and AC system could possibly never start due to any one stuck thermistor
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