York S1-026-34726-001 Limit Switch Easy Retrofitting: Compact footprint and

Easy Retrofitting: Compact footprint and universal mounting simplify the replacement of bulkier older-style relays

If the link is open (infinite resistance)

keeping your gas pressure regulation within tight tolerances for optimized burner efficiency and system safety

this component is a direct replacement for the Resideo 392877/U

York S1-026-34726-001 Limit Switch Easy Retrofitting: Compact footprint andThe York S1 026 34726 001 Limit Switch is a critical safety component designed for precise thermal regulation within York, Luxaire, and Coleman HVAC systems. This SPST (Single Pole Single Throw) fixed temperature switch operates on a 110 140F automatic reset cycle, meaning it breaks the electrical circuit if the plenum temperature exceeds 140F and restores continuity once it drops to 110F. As a direct replacement for S1 2702 314P A, this OEM component