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If the board receives power but fails to initiate the draft inducer or signal the igniter
or the LED status light remaining dark while 24V power is supplied to the board
providing a seamless field replacement for legacy systems
The Lennox 25W67 is a critical OEM replacement fan blade designed for heavy-duty performance in high-tonnage condensing units
Durable Construction: High-grade ceramic insulator and specialized metal rod resist thermal stress in high-temperature combustion chambers
Lochinvar & A.O. Smith 100077872 Control 318172-701 If the board receives powerThe 100077872 (GSW 52720) is a genuine OEM hot surface ignition (HSI) control specifically engineered for select Lochinvar and A. O. Smith gas fired water heaters. As a veteran grade electronic ignition module, this component manages the critical timing sequences for the ignitor warm up, gas valve actuation, and flame rectification sensing. It operates on a 24 VAC control circuit, integrating high performance microprocessor logic to ensure precise
US$ 2999.50
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