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 CB30M-31 Thermistor
In an HVAC system, a thermistor is a special kind of new age resistor whose resistance is directly proportioned to thermal temperature. The system control board needs to know the temperature in some specific areas of the system to know what to do next. They notify the heating and cooling system when a certain temperature has been reached.
General indicators that your the temp-regulating thermister is dead
- The main fan could refuse in its attempt to engage full speed
- The system may not function due to a stuck thermistor
This site contains affiliate links for which I may be compensated
If you are going to be buying or ordering any Lennox CB30M-31 part do your best and double check the model number as well as make a visual inspection so that you are positive that the correct replacement thermistor is being ordered. If you are unsure about installing the new thermistor on your own then it may be wise to contact a professional 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
