This 185F manual reset limit switch is designed to break the electrical circuit if the heat exchanger exceeds its safe operational threshold

Precise Fitment: Engineered to replace Fasco H8

Durable construction resists thermal stress and clogging from fuel impurities

Constructed with high-stability metalized polypropylene film

Nordyne 660153 NAT Pilot Orifice

York S1-025-38737-000 Limit Switch This 185F manual reset limitThe York S1 025 38737 000 Limit Switch is a critical safety component designed for precise thermal monitoring within York, Luxaire, and Coleman gas furnaces. This automatic reset limit switch is engineered with a trip point range of 140 160F, ensuring the system shuts down the burner if heat exchanger temperatures exceed safe operational limits. As a genuine OEM replacement part, it ensures exact fitment and maintains the original equipments safety