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International Comfort Products GDJ125M20A1 Thermistor
In an HVAC system, a thermistor is a thermal resistor, whose resistance changes as it depends on temperature at its location. The main control board must know the temp in order to be sure everything is going well. They can tell the main board when the temperature has been reached.
Chief elements of a bad thermister
- Blower fan refuses to begin to ramp up
- The entire system could possibly not operate due to any one thermistor that is malfunctioning
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