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Carrier FC4B Thermistor
In an HVAC system, a thermistor is a special kind of new age resistor whose rated resistance varies depending on the heat. They convey to the heating and cooling system when a temperature reaches a certain point. The system takes the temperature in order to do its job as it should.
Some clues of a worsening thermister
- The main blower fails in the attempt to ramp up
- The heating and cooling system may not operate because of the inaccurate thermistor
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Before you decide on buying or purchasing a replacement thermistor for your Carrier FC4B, do your due diligence and make sure of the model number as well as make a visual inspection in order to be sure the right thermistor is the one being purchased. Once you have the part to replace the part all by yourself. Look for a professional locally to pay to install it for you.
Feel free to download your manual for help.
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