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    kelliday's Avatar
    kelliday Posts: 2, Reputation: 1
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    #1

    Jan 26, 2010, 07:37 PM
    What does 1 flash on a gas furnace board mean?
    It is referring to system lockout. What needs to be done.
    kelliday's Avatar
    kelliday Posts: 2, Reputation: 1
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    #2

    Jan 26, 2010, 07:38 PM

    System lockout
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