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Why is there no flow through the portafilter?

Why is there no flow through the portafilter?

Love my barista ( about 8years old) use daily. The expresso is not flowing through the portafilter. Sounds like it has pressure then it quiets and no flow of expresso. Could this be my portafilter because the water flows without the portafilter.

Asked by: Guest | Views: 73
Total answers/comments: 2
bert [Entry]

"I had a similar issue. I found if I moved the portafilter to the right and held it there, it would flow well, if not the pressure would mount and would not flow.

Check your springs in your portafiler, and take it apart to clean it a bit."
bert [Entry]

It's happened to me exactly..I did what the other reply said cleaned the portafilla out and found the pin hole blocked solid, ran through some descaler and it works fantastic!