White Rodgers 775-1 Control The S1-024-40872-000 is the current

The S1-024-40872-000 is the current official successor to the 9371VO-BS-0026

This is often caused by the vent limit switch tripping due to a "spill" condition

This stainless steel hex nut provides the necessary tensile strength and corrosion resistance required for harsh mechanical environments

Technical Benefits High Amperage Capacity: Rated for 30A

Common Questions: Can this spring be used in the 325-3 series

White Rodgers 775-1 Control The S1-024-40872-000 is the currentThe White Rodgers 775 1 is a professional grade attic fan control designed to regulate power to ventilation systems based on ambient temperature. Engineered for line voltage applications, this thermostat operates with a 60 120F temperature range and a fixed 10F differential, ensuring efficient heat dissipation without excessive motor cycling. As a direct replacement for F535 models, the 775 1 provides a seamless upgrade path for legacy installations.