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81w03

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  • Low Stock50M56U-801 - CONTROL BOARD (LENNOX, AFTERMARKET)
    WHITE-RODGERS

    50M56U-801 – CONTROL BOARD (LENNOX, AFTERMARKET)

    SKU · 50M56U-801
    $200.41

    50M56U-801 aftermarket control board for Lennox single-stage furnaces. Replaces 103085 series, 100973 series, and many Lennox/Ducane/Armstrong boards.

  • Low Stock81W03 - CONTROL BOARD*
    LENNOX

    81W03 – CONTROL BOARD*

    SKU · 81W03
    $243.41

    Lennox 81W03 ignition control board. OEM replacement for Lennox furnaces. Manages ignition sequence and heating cycles. Replaces 75M17 and 78M47.

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