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Lennox OF25-120R Thermistor
A thermistor is a specific kind of resistor whose rated resistance is altered by heat. They tell the system control board when the temperature in increasing or decreasing. The HVAC system takes the temperature in a few critical areas to make a decision on what needs to be done.
Red flags the temp-regulating thermister is in dire straights
- The entire system may not operate due to any one stuck thermistor
- Primary blower could fail in the attempt to engage full speed spinning
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Before you decide on buying or purchasing a replacement thermistor for your Lennox OF25-120R, do your due diligence and cross-check the model number and also make a visual inspection so that you are positive that the proper replacement thermistor is being ordered. You do not need to install it yourself. Look for a professional locally to do it for you.
Feel free to download your manual for help.
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