DavecUK thank you for your help. I will try to get better videos of the piping. Meanwhile answers to your questions are below.
As someone suggested on the home-barista forum I also tried emptying the boiler today but it did not unfortunately help. Though I had a brief monent today when this came up less frequently.
Is it definitely coming from the vacuum breaker tube, your so close I can’t see, I think from your photo it is as the other one is dry (safety valve)?
I believe so. I will add another video which shows the tubing better.
is it still doing this after 30 minutes?
Yes, it usually starts around that time. Though today it briefly went away for some time and appeared as longer less frequent ”breathes”
Have you disabled the energy saving mode where the machine cools down a bit after 20 or 30 minutes of non use?
I disabled it today but unfortunately no help.
in the second video, IF that is when it’s coming up to pressure before the vacuum breaker seals, then that’s completely normal. Once up to pressure it should slow down and stop (it takes a little while) because the liquid water in the tube evaporates away from the hot metal after the valve has closed, so there might be some bubbles. Then it should stop?
It continues after that and even some time after I have shut down the machine.
what’s the steam pressure showing on the gauge,
Steam pressure has been between 0,5 to 1,5 bar when this has happened
what temperature have you set the steam boiler to?
I have seen this appear in both lowest and middle settings for temperature and in brew and steam mode.
How long have you had the machine and was it brand new when you got it.
I have had the Mara for a couple of days and just received it. Its brand new from factory.
