Jura E8 Modell 2020 brummt

I bought a new Jura E8 model 2020 5 days ago.
Now I noticed that this hums / buzzes very quietly when switched on.
This hum I hear but only when it is very quiet in the kitchen and I'm standing directly at the machine.
When I switch off the Jura E8 by pressing a button, the hum is still there.
Only when I pull the plug from the socket it is gone.
When the machine is switched on again it is back.
Where does this come from?
Is the low hum/humming normal or a warranty issue?
Thanks for answers.

I have the E6, but it hums too. I find it quite annoying, because it doesn't even have to be as quiet as a mouse to hear it anyway. What can be done about this?

I am experiencing the same thing with an E6. Machine works perfectly but hums irritatingly. Sticking felt pads under the legs does not help, neither does turning it off, only unplugging it.
Who can help?

I also have this problem;
A soft hum, even when the unit is turned off. Only unplugging it helps.
Is this a malfunction? I find it quite annoying. Anyone have a solution? Warranty thingy?

Bought an E6 today and noticed the same humming sound. Has anyone had a solution or contacted jura yet?

Here is the E8 and it only buzzes briefly after being turned off.
It turns off completely after a little while, so no stealth consumption either.
Isn't that the case with you.
Just watch it, turn it off and listen for a few minutes.