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To maintain the integrity of the sealed combustion system and ensure safe operation
The York S1-363-90117-700 is a direct OEM replacement part engineered for precise fitment in York
As the direct updated replacement for the obsolete 312900 model
ensuring the thermal signal to the thermocouple remains constant
Its high-temperature rating ensures it won't degrade under the constant heat of the pilot flame
Williams P323031 Limit Switch To maintain the integrity ofThe 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