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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
or a multimeter reading showing an open circuit (infinite resistance) across the connector pins
114 DIA rod provides high sensitivity for accurate flame rectification measurements (microamps)
Designed to integrate seamlessly with PI (Intermittent Ignition) systems
How often should the flame sensor be inspected
Lennox 81W03 Control Board Els PW 17895 or a multimeter reading showingThe 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,
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