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    DavidR2002's Avatar
    DavidR2002 Posts: 1, Reputation: 1
    New Member

    Nov 5, 2006, 07:18 AM
    Goodman Furnace
    What does A three blink code on a Goodman 80 plus gas furnace mean
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member

    Nov 5, 2006, 07:41 AM
    They are not all the same board with the same code. Is there a sticker on the blower door that tells you? If I guessed, I would say the pressure switch failed to close.
    jorjee's Avatar
    jorjee Posts: 2, Reputation: 1
    New Member

    Oct 2, 2007, 12:11 PM
    Quote Originally Posted by DavidR2002
    What does A three blink code on a Goodman 80 plus gas furnace mean
    The installer man just told me it means change the filter.

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