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Nivona 507 no longer draws milk

No longer draws milk


December 15, 2022 03:05 pm


Hi you
,My Nivona 507 pulled a few months ago already no more milk.
Since I changed the front part of the ceramic valve because this was somewhat leaky, then everything went great again ????????
Now after about half a year, it pulls no more milk ????????????♂️When
I lift the milk container, it pulls a little more milk

Would anyone have a tip on what it can be now again?
Or how I can check the ceramic valve ?
See only from the outside that the engine runs.
Thanks a lot greetings