the limit switch is likely stuck open or tripping prematurely

OEM Precision: Direct cross-reference for part number B1037487

test the sensors for proper resistance (Ohms)

expanding them to a standard 1/4" SAE flare connection

Versatile Configuration: Features bi-directional rotation and a dual-shaft design for multi-application fitment

Trane SWT0417 Switch L99H008 the limit switch is likelyThe Trane SWT0417 is a critical industrial grade differential pressure switch engineered for precise monitoring in high demand HVAC and air handling systems. As an essential safety and operational component, this 0. 15 4. 25" differential pressure switch ensures system integrity by detecting the specific pressure drop across filters, coils, or fan stages. Operating within a temperature range of 40 to 150F, this Trane OEM replacement part provides