12 bar is too high and yes, you may indeed see a change in behavior if you lower it to between 9 and 10. Opening the machine to gain access to the OPV is simple, 5 cover screws. And it should be easy to reposition the OPV to make the adjustment screw available through the hole in the chassis.
Good luck!
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I think I am in the correct thread for this question. As my pressure is 13 bar, how do I know if the OPV needs replacement or only adjustment? Would adjustment fail if defective?
Thanks
Beeg
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Thank you Herman
I have watched the videos on Whole Latte Love on pressure adjustment of the pressurestat and OPV. When would you choose to adjust the pressurestat rather than the OPV to lower pressure?
Thanks again
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Thanks, much clearer now.
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