A failed limit switch often causes the furnace blower to run continuously or prevents the burners from igniting

Always verify your specific model and serial number to ensure exact fitment for the combustion assembly you are servicing

making it a reliable drop-in for technicians handling larger residential or light commercial air handlers

The 061674 model is supplied less flange

Installation typically requires No

Trane CTR2731 Contactor 319847-401 A failed limit switch oftenThe Trane CTR2731 is a commercial grade 3 pole definite purpose contactor designed for high demand HVACR applications requiring reliable switching of power circuits. Engineered with a 120V coil and a 40 amp inductive rating, this genuine OEM Trane part ensures seamless integration and prevents the premature component failure often associated with generic alternatives. This contactor features a three pole configuration and double pole power switching,