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Carrier 50XP024300 Thermistor
A very basic thermistor is a specific kind of resistor whose resistance is altered by current temperature. They can tell the heating and cooling system when the temperature has been reached. The main control board takes the temperature in order to make a decision on what needs to be done.
Clues to watch for to know your all-important thermister should need replacing
- The heating and AC system may never begin because of the broken thermistor
- The main blower may fail to begin to engage full speed
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