Key Benefits Dual-Function Versatility: Manages both single-level and differential-level operations on a single board

this microprocessor-based board regulates the gas valve

"F09" or "Air Pressure Switch" fault codes

Safety controls must be replaced with the exact temperature rating specified by the manufacturer to maintain the designated safety profile of the appliance

This prevents pressure "creep" from reaching downstream components

Lochinvar & A.O. Smith 100142506 Gasket 326010-701 Key Benefits Dual-Function Versatility: ManagesThe Lochinvar & A. O. Smith 100142506 Gasket is a critical OEM manifold gasket designed to maintain air to gas ratio integrity in heavy duty commercial heating systems. As a genuine boiler replacement part, this high temperature gasket is precision engineered to prevent combustion leaks and ensure optimal thermal efficiency. Specifically built for high performance units, this 100142506 kit provides the durable seal required to withstand the thermal