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
HOME > HVAC > LENNOX > CB30M-21 > DEFROST SENSOR BOARD

Lennox CB30M-21 Defrost Sensor Board

The defrost sensor board instructs the system to activate the defrost sequence if necessary, to get rid of the frost that collects on the outdoor unit. The defrost sensor board is relayed information from a sensor located near the condenser to make the decision on when to begin.

What symptoms are present when the defrost board is in need of a replacement?

This site contains affiliate links for which I may be compensated
Check eBay to see if your defrost sensor board is in stock!
Before you decide on buying or purchasing, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the correct defrost sensor board is the one being purchased. Once you have the part to install the part by yourself. Hire someone with experience in your area to pay to install it for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
Check eBay for your defrost sensor board!