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

it immediately signals a lockout to prevent unburned gas from accumulating in the heat exchanger

The York S1-9951-0931 is a precision-engineered LP Gas Orifice designed for specific burner manifold applications in York

Designed as a direct OEM replacement start capacitor

often appearing under different branding (Barber Colman vs

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