Lennox 13H06 Gas Valve 30067439-890 or heavily sooted boiler sections

or heavily sooted boiler sections forcing gases out the burner front

a full rebuild with the Parker 76725 is recommended

it requires immediate replacement

it restores proper ignition sequencing in compatible Trane and American Standard gas furnaces and air handlers

The internally fused secondary provides critical overload protection

Lennox 13H06 Gas Valve 30067439-890 or heavily sooted boiler sectionsThe Lennox 13H06 Gas Valve is a critical OEM replacement component designed for high performance gas fired heating systems. This direct ignition dual automatic valve is engineered to manage fuel flow with precision, ensuring consistent manifold pressure and reliable burner engagement. Rated for 24V AC operation, the unit features a 1 2" NPT inlet and outlet configuration, making it a standard fit for a wide range of Lennox residential and commercial