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Lennox XC17 Thermistor
A very basic thermistor is a special kind of new age resistor that has a fluctuating resistance that depends on the heat. They can tell the system control board when a certain temperature has been reached. The system control board interprets the temperature in order to know what to do next.
What signals that my Lennox thermister is in need of a replacement?
- Blower motor could fail in its attempt to engage full speed spinning
- No component may never start up because of any failed thermistor
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Before buying or purchasing any Lennox XC17 replacement part, do your due diligence and cross-check the model number as well as make a visual inspection so that you are positive that the right thermistor is being ordered. There is no rule that says you have to replace the part all by yourself. Find a professional in your town or city to do it for you.
Feel free to download your manual for help.
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