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    kraut420's Avatar
    kraut420 Posts: 4, Reputation: 1
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    #1

    Dec 1, 2009, 01:28 PM
    Goodman furnace will not come out of lockout
    We just installed a 70,000 BTU goodman furnace and it worked fine then it gave the code of 4 flashes. We tested eveything and still locked out.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Dec 1, 2009, 01:31 PM
    My book says 4 flashes = a open limit control. Look on the inside of the blower door for your wiring diagram and post exactly what 4 flashes mean for your furnace.
    kraut420's Avatar
    kraut420 Posts: 4, Reputation: 1
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    #3

    Dec 1, 2009, 01:39 PM

    We checked the open limit control and it works fine.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #4

    Dec 1, 2009, 01:42 PM
    If you just installed the furnace I would look for a problem with the install. Look over your work again and pay close attention to the exhaust size,length,and termination.
    kraut420's Avatar
    kraut420 Posts: 4, Reputation: 1
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    #5

    Dec 1, 2009, 01:46 PM

    It was installed profesionaly and he checked evrything. Exhaust is 2 inch pvc and runs 15 feet.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #6

    Dec 1, 2009, 01:57 PM
    Exact model number?
    kraut420's Avatar
    kraut420 Posts: 4, Reputation: 1
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    #7

    Dec 1, 2009, 02:08 PM
    Gmh96/gch9
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #8

    Dec 1, 2009, 05:16 PM
    Here is your complete service manual. You can use this to track down your problem. I suggest you keep a copy of this on your computer for future reference. This manual is also for other units so make sure you are using the correct section for your model number.

    http://securenet.goodmanmfg.com/pdf/...S6610004R4.PDF

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