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Gaggia Classic Not Pumping

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  • #31
    dmbassett,
    Wonderful news that things with your machine are resolved now,I did enjoy your posts..so easy to follow with all the images,thank you and I'm sure now lot's of others are more aware of the simplicity of the pump and that "I can do that " attitude.
    Cheers
    Mick

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    • #32
      Hey nick not resolved just yet but I suspect the little plastic ball is at fault. It's not round anymore and a lot smaller than it should be so not foaming a seal. But yes very easy to take apart and clean. I'm thinking new pump for about $30

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      • #33
        Wow, you've really gone as far as you can go. It's very informative that's for sure. Everything I'd read had always said that I the pump works when tested then it's not the pump. But maybe this is one situation where it's no so black and white and it can test ok without working properly the way it's supposed to. I'm really hoping you get a result in the end and I'm looking forward to seeing how it goes.

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        • #34
          Old pump next to new $29 ulka ex5 pump...
          Click image for larger version

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          Fitted it this morning an hey presto the machine lives another day. Sounds slightly different now I suppose I got used to my old pump dying. It was 10 years old and used hard. I suppose this problem with my machine was hard to diagnose because the machine would work intermittently. After stripping every part of the machine down several times I now suspect that the issue was with the plastic internal parts of the ulka pump. They had worn away. Specifically the little ball thing. It was supposed to be round but had rounded off to an oval and I think this would move around when the pump was running and sometimes form a seal and pump and sometimes not. Hey that's my thinking anyway. Thanks for the tips and advice everyone hopefully this bread will help others when their 10 year old classic starts acting up. Not a bad result for $40 inc shipping fix!
          http://youtu.be/QWQS3AUe2mk

          Mark [emoji1][emoji1][emoji1]

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          • #35
            Bread = thread

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            • #36
              Mark,
              Great to know you have finally got the coffee flowing again,your problem was a very tricky one to diagnose,you have achieved a nice satisfying fix there, in the end,it's a pest you had to replace the whole pump.
              If you have nothing else to do in your idle moments,would it be worth wiring it up (carefully...with the electricity) and see if it pumps from a bucket,might have to prime it though......as if you had a window of time without pressing domestic obligations that is!
              cheers
              Mick.

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