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

    Nov 23, 2011, 08:12 PM
    My York Diamond 80 furnace stopped blowing heat
    Hello my furnace stop blowing hot air, and there is no flame. Flashing code 4 for limit switch. Does any one know where it is and how to test. Any help would be appreciated, Thank you.
    glass61's Avatar
    glass61 Posts: 11, Reputation: 2
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    #2

    Nov 26, 2011, 08:07 AM
    Limit switch will be located on/near your heat exchanger. If it is throwing your limit switch, there will most likely be a reason the switch is tripping.
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