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Lennox OF24-120 Thermistor
A very basic thermistor is a thermal resistor, whose rated resistance will fluctuate depending on the actual temperature is perceives. They convey to the system when a temperature has been reached. The control board needs to know the temperature in order to make a decision on what needs to be done.
What to see if the Lennox thermister is dying?
- The entire system could never start up depending on which is the thermistor that is damaged
- Main blower may fail in its attempt to ramp up the airflow
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Before you decide on buying or ordering a replacement thermistor for your Lennox OF24-120 do your best and double check the model number as well as make a visual comparison in order to be sure the correct thermistor is being ordered. There is no rule that says you have to install it yourself. Consult with a professional in your town or city to pay to install it for you.
Feel free to download your manual for help.
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