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    Teamroper911 Posts: 1, Reputation: 1
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    #1

    Nov 7, 2012, 08:32 AM
    Trane XL90
    I have a code of 4 led flashes. I have tapped the limit switch the furnace ignites and then shuts off. I read something about filters, where would these be located. Do you have and suggestions?
    Thx

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