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featuring a robust SPDT switch configuration that offers versatile wiring options for your safety circuits
Safety Compliance: Prevents hazardous operating conditions by enabling the boiler's high-limit safety cut-out protocols when exhaust temperatures exceed thresholds
This part is frequently found in Lochinvar Power-Fin heating boilers (1501-2001) and various A
this OEM conversion kit preserves terminal efficiency and flame stability
requiring replacement
Lennox 81W03 Control Board 30067439-890 featuring a robust SPDT switchThe 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,
US$ 39.95
US$ 65.00
US$ 70.00