Lochinvar & A.O. Smith 100276842 Pressure Switch 319852-301 as the equalization method is

as the equalization method is determined by the valve body

Common causes include a failed circulator pump

Consistent Ignition: Delivers dependable startup and stable flame operation

natural gas for optimal thermal efficiency

Utilizing genuine ASCO valve parts ensures mechanical compatibility with the original valve body

Lochinvar & A.O. Smith 100276842 Pressure Switch 319852-301 as the equalization method isThe Lochinvar & A. O. Smith 100276842 Pressure Switch is a critical safety component designed to monitor combustion blower performance and ensure proper venting pressure within high efficiency commercial water heaters and boilers. This OEM air pressure switch acts as a fail safe, preventing ignition if the inducer motor fails to establish the correct differential pressure. As the direct 100166151 replacement part, this switch is engineered for high