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Problem with coffee coming out the top of the portafilter when brewing on my 6910

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  • Problem with coffee coming out the top of the portafilter when brewing on my 6910

    Hey, guys.

    This has only started recently, but is getting annoying.

    The coffee isn't ground too finely and I am not tamping the ground beans too hard, yet I get a steady flow from the top of the portafilter and into the cup.

    Anyone have any idea why this is happening? Beans are home roasted to about a 7.

  • #2
    group head seal need replacing?

    I presume the portafilter seems to lock in as normal.

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    • #3
      Group seal sounds like it needs replacing

      Chris

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      • #4
        Yes, awesome. Thanks, Barry, and, Chris.

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        • #5
          Most likely the group head seal.

          Could also be some grounds imbedded in the seal--try a really good clean.

          Could also be the portafilter is over full--try reducing the dose a bit and check.

          Greg

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