71" WC (water column)

you know that a failing display often signals impending communication issues between the main control board and the user

making it a standard OEM replacement part for numerous gas furnace models

Signs of a failing seat include the inability of the valve to fully close off

Smith 100109200 Burner Assembly

Carrier 336859-703 Burner Support Assembly 319852-301 71" WC (water column)The Carrier 336859 703 Burner Support Assembly is a precision engineered OEM replacement part designed to stabilize the combustion process in high efficiency heating systems. As a critical component within the heat exchanger section, this burner support assy ensures proper alignment of burners to maintain consistent flame patterns and prevent localized overheating. Built with high temperature tolerant materials, it is specifically configured for