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Lennox G40DF-48C-090X Thermistor
In an HVAC system, a thermistor is a specific kind of resistor that has a varied resistance that varies depending on the thermal temperature. They can tell the circuit board when a certain temperature in increasing or decreasing. The main control board interprets the temperature in certain areas to do its job as it should.
Symptoms the Lennox thermister is going to die
- The system may not function because of any thermistor that is the problematic one
- Main blower could refuse to begin to begin full speed blowing
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Before buying or purchasing any Lennox G40DF-48C-090X part do your best and double check the correct model as well as make a visual inspection in order to be sure the right thermistor is the one being purchased. Use caution when you replace or install any part of a heating or cooling system. If you are not exactly sure of what to do next call a pro. Stay safe.
Feel free to download your manual for help.
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