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

Replacing the gasket during annual inspections or whenever the head is removed prevents dangerous leaks and ensures the low water cut-off maintains precise calibration

Nordyne 660153 NAT Pilot Orifice

Durable Construction: Features high-grade materials for maximum protection against corrosion and erosion

Precise Fitment: Engineered to replace Fasco H8

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