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International Comfort Products TCA024AKA1 Thermistor
In an HVAC system, a thermistor is a type of resistor whose resistance is governed by temperature at its location. They convey to the system when a certain temperature reaches a certain point. The main control board takes the temperature in a few critical areas to understand what is going on.
Some clues your all-important thermister will need replacing
- The blower refuses in the attempt to ramp up the airflow
- The system could possibly not even begin because of any bad thermistor
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