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International Comfort Products NDN5125BKC1 Thermistor
A very basic thermistor is a thermal resistor, that has a varied resistance that changes as it depends on the amount of, or lack thereof, heat. The system needs to know the temperature in a few critical areas to make a decision on what needs to be done. They tell the heating and cooling system when the temperature in increasing or decreasing.
Some warnings your all-important thermister is failing
- The whole HVAC system could possibly not even begin due to any one damaged thermistor
- Primary blower could refuse in the attempt to begin full speed blowing
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