Lennox 56W19 Control Board 30067439-890 the internal bi-metal disc has

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

Industrial Build Quality: Constructed with heavy-duty materials to withstand frequent cycling in high-traffic commercial zones

reducing boiler fuel consumption and operational costs

5 tons and is fully compatible with R744 (CO2) systems

Lennox 56W19 Control Board 30067439-890 the internal bi-metal disc hasThe 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