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effectively preventing the heat exchanger from overheating
making it a drop-in replacement for Heil
if the wire run exceeds 15 feet or passes near high-voltage lines
verifying the continuity of the York high limit switch is a fundamental diagnostic step to ensure the appliance maintains its intended sequence of operation and thermal protection margins
allowing for a seamless swap-in during routine service or emergency repairs
York S1-025-27747-003 Rollout Switch Els PW 17895 effectively preventing the heat exchangerThe York S1 025 27747 003 is a precision engineered flame rollout switch designed for critical safety monitoring within residential gas furnace burner compartments. Featuring a fixed 160 degrees F trip point, this manual reset sensor is a high limit safety device that opens the SPST (Single Pole Single Throw) circuit if it detects excessive heat or flame spillage outside the heat exchanger. This OEM replacement part is vital for preventing hazardous