Lochinvar & A.O. Smith 100108635 Orifice L99H008 These codes typically indicate the

These codes typically indicate the board is not sensing a pilot flame

this specific control is designed for 24 VAC (18-30 VAC) input only

The Packard electrical connection ensures a moisture-sealed interface

ensuring reliable performance by verifying proper inducer motor operation and venting pressure before allowing the ignition sequence to proceed

Lochinvar & A.O. Smith 100108635 Orifice L99H008 These codes typically indicate theThe Lochinvar & A. O. Smith 100108635 is a precision engineered natural gas orifice designed for high efficiency commercial water heaters and boilers. This #33 drill size orifice is machined from durable 3 8" hex brass, ensuring consistent thermal resistance and reliable gas flow regulation under varying manifold pressures. As an essential component for stoichiometric combustion, this replacement gas orifice maintains the specific BTU input required