The 5225-028 is an automatic reset limit control

preventing dry-fire conditions that lead to cracked heat exchangers or catastrophic system failure

Common Questions What are the signs of a bad Lennox 49M84 sensor

as well as oil decomposition products like varnish and sludge

Lochinvar & A.O. Smith 100110898 Gasket 340155-7024 The 5225-028 is an automaticThe 100110898 Gasket is a critical OEM replacement component designed for high temperature sealing in Lochinvar and A. O. Smith burner assemblies. This 3. 75 inch silicone burner gasket is engineered to maintain a pressure tight seal between the burner flange and the combustion chamber, preventing flue gas leakage and ensuring proper manifold pressure. Constructed from high grade, heat resistant silicone, it withstands the thermal cycling common in