Lennox 81W03 Control Board Els PW 17895 How often should the flame

How often should the flame sensor be inspected

Optimized Pitch: The 28-degree pitch provides the necessary lift to pull air through dense coil fins effectively

vibration-free connection to the motor shaft

114 DIA rod provides high sensitivity for accurate flame rectification measurements (microamps)

The Carrier P291-3554RS Run Capacitor is a 35+5 MFD 440V dual run capacitor designed for high-duty cycle performance in residential and commercial HVAC systems

Lennox 81W03 Control Board Els PW 17895 How often should the flameThe 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,