JahLaza Of course you can tweak pump pid values and acceleration to reduce this. As I said, the Vesuvius is a really precise machine and you have to learn how to take profit of it. Yes, steam and coffee circuits should be independent but obviously they are not (in my machine). Brew circuit being affected by steam pressure reduces your choices, that’s it… What works perfectly fine with the service boiler off should work perfectly fine with steam on.
I talked to acs, I sent the machine for servicing where they asked me to do it, the workshop video talked to their tecnicisn, spares required where sent and installed but… the two original issues, water returning to the water tank from the coffee boiler through the pump and this pressure interference where still there. Fortunately, and in an unexpected way, water has not returned to the tank anymore (hope not returning again tomorrow). Service boiler pressure getting in the brew circuit… still in my machine (and in some others). I found in the old tapatalk forum these issues in other machines, here is the link. This users reported exactly the same behaviour.
Pull up lever for shot, pump turns on and spins up very high…
This are the two issues my Vesuvius has (first intermitent, second always here) and they seem to be related. Circuits are not independent in some machines… I can leave with it, of course, but I don’t like it.
Problem is… it makes a really good espresso. The workshop lent me a Expobar Pulser while my Vesuvius was out of service. After some weeks with no espresso I really enjoyed the Pulser. I even thought buying one as is cheap, small and convenient but when the vesuvius returned… well, espresso is so so different…
By the way, my machine is from 2018.
