What happens if my furnace keeps tripping this switch

ensuring a perfect physical and electrical match for specific Lennox models

If your furnace blower runs continuously while the burners stay off

ensuring that any flame rollout event is professionally diagnosed before the system is placed back into operation

ensuring the safe and efficient discharge of combustion gases from the heat exchanger to the venting system

TB Woods 4J-3/4 Coupler Flange What happens if my furnaceThe TB Woods 4J 3 4 Coupler Flange is a Type J Sure Flex Plus power transmission component engineered for heavy duty industrial and HVAC applications. Manufactured from high strength sintered carbon steel using a powdered metal process, this Size 4 flange provides exceptional dimensional accuracy and uniform material properties. It features a precision 3 4" bore with a standard 3 16" x 3 32" keyseat and a primary setscrew positioned over the keyway