When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
Lennox XC21-024 Thermistor
In an HVAC system, a thermistor is a special kind of new age resistor that has a fluctuating resistance that is contingent on the actual temperature is perceives. The furnace or AC reads the temperature in certain areas to ensure that things are as they should be. They tell the heating and cooling system when the temperature has been reached.
What to see if the Lennox thermister really needs to be replaced?
- The heating and AC system may never start up because of any improperly set thermistor
- The system blower could possibly fail in the attempt to engage full speed
This site contains affiliate links for which I may be compensated
If you decide on picking up or purchasing a new Lennox XC21-024 replacement part, do your due diligence and cross-check the model number and also make a visual comparison in order to be sure the proper replacement thermistor is being ordered. If you are not sure about installing the new thermistor by yourself then it would be in your best interest to find a professional in your area to do the work for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
