The York S1-025-31812-000 Rollout Switch is a critical safety component designed for specific furnace burner assemblies where precise thermal monitoring is non-negotiable

installing the correct valve actuator spring is essential to ensure the spring return mechanism operates within the design specifications of the Honeywell VP526A

often appearing under different branding (Barber Colman vs

For contractors servicing Trane

Designed as a direct OEM replacement start capacitor

Williams P323031 Limit Switch The York S1-025-31812-000 Rollout SwitchThe Williams P323031 Limit Switch is a critical genuine OEM replacement part engineered specifically for technical compatibility with Williams Comfort Products floor furnaces. This fixed temperature 95F limit switch serves as a primary safety control, monitoring the internal cabinet air temperature to prevent heat exchanger damage and system overheating. As a vital component for gas furnace safety control, it initiates a circuit break if temperatures