Lennox 56W19 Control Board Els PW 17895 always match the specific PSI

always match the specific PSI ratings and thread type (typically 1/4 inch SAE flare) before attempting installation on non-Heil Quaker units

and oil in diverse HVACR applications

Failure is often attributed to a ruptured internal diaphragm

Ruggedly constructed for industrial environments

this component ensures the fit and electrical load match the manufacturer's original sequence of operation

Lennox 56W19 Control Board Els PW 17895 always match the specific PSIThe 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