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Carrier 50TFQ004 Thermistor
A thermistor is a type of resistor whose rated resistance varies depending on the temperature at its location. The heating system takes the temperature in several different areas to make sure everything is running smoothly. They notify the HVAC system when a temperature in increasing or decreasing.
Simple signals the Carrier thermister needs to be replaced
- The main fan could fail in its attempt to begin full speed blowing
- The entire system may never begin because of the thermistor that is stuck open
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Before buying or ordering a new Carrier 50TFQ004 replacement part, do your due diligence and double check the correct model and also make a visual inspection so that you are positive that the correct replacement thermistor is the one being purchased. There is no rule that says you have to install it yourself. Consult with a professional in your community to hire and install the part for you.
Feel free to download your manual for help.
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