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International Comfort Products HAC018GKA1 Thermistor
A thermistor is a thermal resistor, whose resistance varies depending on the current temperature. They notify the HVAC system when a temperature in increasing or decreasing. The system control board deciphers the temp in a few critical areas to do its job correctly.
Some warnings to watch for in a failing all-important thermister
- The heating and cooling system could possibly not even begin because of any thermistor that is damaged
- Blower fan may fail to begin to ramp up the airflow
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