Vesuvius Pressure Profiling Machine - General Discussion

DavecUK difficult to be believe that is even possible 😄… does @Paolo_Cortese have any ideas how to solve this?

I’m waiting a reply overall i need to know if book the flight or not… everyway a solution must be found!!!

Hi everybody Flash trip! I arrive to Naples today, Tuesday i will visit Paolo to test the Vesuvius with him before to go back spain. Thanks to acs team for the colaboration!

Spid3r00 there was a similar issue a couple years back and I believe it was incorrect magnets on the motor…??

dougyea I don’t believe the magnet is issue in this case.

In my case previous owner change the magnet in the pump some months ago.

kautivo how did it go? Did you guys manage to reproduce it, and hopefully, fix it?

Sounds a bit esoteric this?! When I recommended changing pump settings I didn’t get a response to it, Dave seems to have had no issue with the machine performance when he did this in Naples? Interested to hear what @kautivo experiences in Naples

John_Yossarian It seems a bit like “what happens in Naples, stays in Naples”

Kautivo dorme con i pesci :-)

i was thinking that 😅

It would be a shame, after all of this discussion, if the outcome isn’t shared. Let’s hope they are all on holiday and they will let us know what the outcome was when they are back.

Hi all, not solved, the machine remains in Naples.

Paolo asked us to remove the gliceur and try to reproduce the problem. I did it and there is no difference in my machine. Service boiler on and hot, there is always a “barrier” during the first seconds at about 1,8-1,9 bars on the screen, that is what makes the pump increasing the speed and overshooting. Service boiler on but under 120º, no problem at all. I have tried it many times and have sent the videos asked to the factory. Removing the gliceur would find out if the problem is related with scale or debris.

Hi everybody, exactly as @tocateclas has written the machine is in Naples we are in contact with @Paolo_Cortese sending videos with test without glicer but the machine follow failing!

Dear @DavecUK the valve named as “one way” is the only part shared between both boilers if the pressure in steam boiler is high when we find the fail, Is it possible the problem happen if the valve don’t work right ? What do you think?

In Naples only could see a jump when @Paolo_Cortese removed the glicer but in this case the circuit had air, in the next test the machine didn’t jump the pressure.

Thanks very much!!!

Regards and happy new year for everybody, i hope to find the solution this year!!!

kautivo Dear @DavecUK the valve named as “one way” is the only part shared between both boilers if the pressure in steam boiler is high when we find the fail, Is it possible the problem happen if the valve don’t work right ? What do you think?

It might be that there is am intermittent and momentary leak to the steam boiler (autofill solenoid) when the pump starts, so it speeds up thinking it needs more power to get the pressure. Then the leak stops as the pressure rises and this causes the pressure to peak momentarily (like a water hammer effect) before the pumps PID can respond…once peaked, the peak will take a while to come down as the brew circuit has a lot of resistance due to the puck now being wet.

Is @kautivo’s machine not in Naples? Did Kautivo not fly to Naples to visit ACS factory to investigate the problem with the machine at the factory? The last couple of messages are suggesting not?

Ah ok, so your machine is working ok now? Air trapped in the circuit caused the issue?