Williams P323031 Limit Switch The York S1-363-90117-700 is a

The York S1-363-90117-700 is a direct OEM replacement part engineered for precise fitment in York

ensuring the thermal signal to the thermocouple remains constant

It is designed to open or close one circuit only

As the direct updated replacement for the obsolete 312900 model

direct-fit installation across various packaged units and air handlers

Williams P323031 Limit Switch The York S1-363-90117-700 is aThe 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