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Carrier 38QRR018 Thermistor
A very basic thermistor is a certain type of resistor that has a varied resistance that is dependent on the temperature. The system control board takes the temperature in a few critical areas to be sure everything is going well. They can tell the circuit board when a temperature reaches a certain point.
Easy warnings the system thermister is in dire straights
- The main fan may fail in its attempt to begin full speed blowing
- The whole HVAC system could never start up due to any one thermistor that has failed
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If you are going to be buying or purchasing do your best and double check the model number and also make a visual inspection so that you are positive that the correct replacement thermistor is being ordered. The installing of the thermistor is a breeze 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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