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Carrier 48XL-A Thermistor
A very basic thermistor is a specific kind of resistor whose rated resistance changes as it depends on current temperature. They inform the HVAC system when the temperature in increasing or decreasing. The furnace or AC deciphers the temp in some specific areas of the system to know what to do next.
Symptoms your all-important thermister is in need of replacing
- The entire system could possibly never start due to any one thermistor that is damaged
- The blower may fail in the attempt to engage full speed
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Before you decide on buying or ordering any Carrier 48XL-A replacement part, do your due diligence and make sure of the correct model and also make a visual inspection in order to be sure the proper replacement thermistor is the one being purchased. The installing of the thermistor can be quite easy if you have the time and have the tools to get it done.
Feel free to download your manual for help.
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