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    Tateroop1's Avatar
    Tateroop1 Posts: 1, Reputation: 1
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    #1

    Oct 11, 2014, 10:11 AM
    Concord Gas Furnace
    Blower runs, no ignition. Diagnostic beacon is flashing 4 times, which according to to code sheet, means open limit switch. How do I remedy this?

    Fan runs, but no ignition. Led flashhes 4 times, indicating open limit switch. Where is it, how do I fix it?
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
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    #2

    Oct 11, 2014, 10:15 AM
    You probably have a least 3 switches in there. What is the model number? Are you talking about combustion blower or the big blower?
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