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International Comfort Products CAC224AKA1 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor whose rated resistance depends on the temperature at its location. The main control board must know the temp in order to do its job correctly. They notify the system when the temperature has been reached.
Warnings of an unhealthy all-important thermister
- Main blower fails to begin to ramp up
- The heating and AC system could possibly not even begin because of any failed thermistor
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