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Lennox G40DF-60C-110 Thermistor
In an HVAC system, a thermistor is a thermal resistor, that has a swinging resistance will fluctuate depending on the heat. They convey to the system control board when a certain temperature has been reached. The system control board must know the temp in several different areas to make sure everything is running smoothly.
Major warnings the Lennox thermister is not going to last much longer
- The initial sequence could possibly not even begin due to any one damaged thermistor
- The main blower could possibly fail in the attempt to ramp up
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If you decide on picking up or purchasing do your best and make sure of the correct model and also make a visual comparison so that you are positive that the correct replacement thermistor is being ordered. There is no rule that says you have to replace the part all by yourself. Look for a professional locally to replace the part.
Feel free to download your manual for help.
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