Lennox 81W03 Control Board Els PW 17895 With a calibrated operating range

With a calibrated operating range of -1

you may require additional diaphragm repair kits (MP8000-6350)

Is this relay compatible with non-Goodman brands

or even safety shutdowns that leave your customers in the cold

Ensure the tank is full and the heating elements are not shorted before resetting

Lennox 81W03 Control Board Els PW 17895 With a calibrated operating rangeThe Lennox 81W03 Control Board is the direct OEM replacement for the Lennox 17W70, 17W7001, and 81W0301 ignition control boards. As the central logic for your furnace, this integrated furnace control manages critical sequences, including hot surface ignition, flame sensing, and blower motor timing. It is engineered specifically for use in high efficiency units such as the Lennox G40, G43, and ML180 ML193 series. When performing a field replacement,