York S1-025-37344-000 Limit Switch you will typically need the

you will typically need the 20-001-12 or 20-001-13 variant

the B1370920 furnace limit switch automatically closes

forcing a diagnostic check of the system's thermal state

typically via a flare or sweat connection depending on the specific manifold setup

Direct Supercession: Seamlessly replaces the legacy 311100 gasket with updated material specs for improved longevity

York S1-025-37344-000 Limit Switch you will typically need theThe York S1 025 37344 000 Limit Switch is a critical safety component engineered for precise thermal regulation within York, Luxaire, and Coleman gas furnaces. This OEM replacement part operates as a normally closed switch that opens the electrical circuit when the internal plenum temperature reaches its 215 degree Fahrenheit trip point. Designed with a 30 degree differential, the automatic reset furnace limit re closes at 185 degrees Fahrenheit,