Lennox 56W19 Control Board 30067439-890 As an HVACR professional

As an HVACR professional

ensuring optimal modulation of direct or indirect fired units

the internal bi-metal disc has likely sustained mechanical failure and requires replacement

Using an incorrect rating can lead to incomplete combustion or dangerous carbon monoxide levels

As a direct replacement for 510-512-337

Lennox 56W19 Control Board 30067439-890 As an HVACR professionalThe Lennox 56W19 Ignition Control Board, also identified as the Aire Flo R47582 001, is a critical OEM replacement component for single stage heating systems. This integrated furnace control manages the combustion sequence, including the hot surface ignitor (HSI), gas valve, and flame sensing rectification. Operating on a 24VAC (18 30 VAC) control circuit, this board is the direct replacement for 56W1901 and ensures high performance switching without