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Bezzera OPV issue??

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  • Bezzera OPV issue??

    Hi,

    I have a BZ07 and lately have been experiencing some rather bitter shots.
    I peered under the hood today and could see that as soon as i started brewing, water was returning to the reservoir without any real pressure having been built up at the group. As the pressure did build the water flow slowed and eventually stopped when 12bar was reached. Then about 4 seconds after the pressure had seemingly stabilised at 12bar, it started to rise again and flattened out at about 14.5bar.
    I have not yet identified which return hose is delivering the water back ( there are 2 on my machine) but just thought I'd throw it out there first before i delve deeper.

    Any early thoughts??

    Risso.


    ** Water is returning from OPV **
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