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Lennox OF24-140 Thermistor
A very basic thermistor is a special kind of new age resistor which has a resistance that varies depending on the heat. They notify the system control board when the temperature reaches a certain point. The HVAC system deciphers the temp in certain areas to ensure that things are as they should be.
Subtle cues of a declining all-important thermister
- The main fan could never begin in the attempt to engage full speed spinning
- The initial sequence may never begin depending on which is the thermistor that is malfunctioning
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Before buying or purchasing any Lennox OF24-140 part, do your due diligence and make sure of the correct model and also make a visual comparison in order to be sure the correct thermistor is the one being purchased. Use caution when you install any HVAC part. If you are not sure what to do then call a pro. Stay safe.
Feel free to download your manual for help.
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