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  1. #1
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,079

    Default BLUE SLIM ON FURNACE

    hey all

    a young lady just sent me this picture of what she describes as blue slim leaking on her furnace--i havent seen it first hand yet--but could that be freon leaking from ac line---what do you all think--she says its slimmy--sounds like refrigerate--BUT
    THANKS
    CHARLIE

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  2. #2
    Join Date
    Mar 2007
    Location
    Hudson, WI
    Posts
    645

    Default Re: BLUE SLIM ON FURNACE

    Quote Originally Posted by CHARLIE VAN FLEET View Post
    hey all

    a young lady just sent me this picture of what she describes as blue slim leaking on her furnace--i havent seen it first hand yet--but could that be freon leaking from ac line---what do you all think--she says its slimmy--sounds like refrigerate--BUT
    THANKS
    CHARLIE
    Looks to me like copper sulfate formed from condensation on the refrigeration line.

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  3. #3
    Join Date
    Mar 2007
    Location
    Tampa, Fl
    Posts
    155

    Default Re: BLUE SLIM ON FURNACE

    Yep, condensation on copper line causes it to turn green, some of it drips down the side of the cabinet. I typically take off the cover to look for corrosion or problems on the furnace components, then make a judgement call as to if I write it up or not. In this case, I probably would, condensate line has no cap or visible trap. Insulation on the line set run all the way to the cabinet and seal cabinet penetrations might help relieve condensation.


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