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  1. #14
    Join Date
    Jun 2003
    Location
    Chicago, IL
    Posts
    4,354
    Quote Originally Posted by jpsmith1cm View Post

    Soap....
    So if we add some water to system it should dissolve and clear the cap tube out

  2. #15
    Join Date
    May 2010
    Location
    Oxford, UK
    Posts
    336
    Quote Originally Posted by jpsmith1cm View Post
    Soap....
    Read years ago in a Bitzer report that R134a and poe oil can make metal soap and block cap tubes, though very few people seem to have heard of it judging by responses i've got when mentioning it.

  3. #16
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,416
    Quote Originally Posted by monkeyspanners View Post
    Read years ago in a Bitzer report that R134a and poe oil can make metal soap and block cap tubes, though very few people seem to have heard of it judging by responses i've got when mentioning it.
    I has to do with the chemical breakdown of POE oil.

    Any refrigerant with POE oil will do it.

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