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Ensure the flange surface is scraped clean of all old gasket material before seating the new 314100 to prevent uneven compression
this critical safety component monitors the burner flame immediately after ignition
Always verify the part number against your model’s technical manual to ensure the probe length and thermal settings match the original design
ensuring safe and consistent flame rectification
York S1-025-31927-000 Limit Switch Ensure the flange surface isThe York S1 025 31927 000 Auto Limit Switch is a high precision OEM furnace safety control designed to monitor and regulate internal heat exchanger temperatures. This SPST temperature control features a 5 8 inch footprint and is engineered to protect HVAC equipment by opening the circuit at 240F and automatically resetting (closing) when the temperature drops to 155F. Built for heavy duty York gas furnace and heat pump applications, such as the FRHS