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Carrier RHR Thermistor
A very basic thermistor is a certain type of resistor which has a resistance that varies depending on the amount of, or lack thereof, heat. They tell the system control board when the temperature has been reached. The system must know the temp throughout the whole system to understand what is going on.
Subtle cues of a barely functioning system thermister
- The main blower may fail in its attempt to ramp up
- The whole system may not even begin to function because of any broken thermistor
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Before you decide on buying or purchasing, do your due diligence and double check the correct model as well as make a visual comparison in order to be sure the correct thermistor is the one being purchased. HVAC professionals may charge higher prices than others so you may want to keep a lookout locally to find a good deal if you want to pay bottom dollar.
Feel free to download your manual for help.
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