Impressa S7 steam nozzle spits

Hello coffee community
Now that I have already cleaned and put everything on our machine several times, I don't know any more advice:
We have the self-priming frothing nozzle and the good piece works with a cup at the beginning only very briefly as it should. After that, she spits and snorts. But if you then move the lever downwards for warm milk, it actually works already, only who wants his cappuccino only with milk.
Cleaned, decalcified and intensively cleaned I have the device and the nozzle already several times.
Do you know the problem? Can I improve this on my own? Who knows a good and fast service in the Munich West?

Thanks for your help.
Greetings from Upper Bavaria
Ralph

Have you changed the air inlet yet?

--------------------
Grüße, Manuel

Jura ENA Micro 9 (Küche)
Jura xF50 (Büro)
wechselnde Besetzung in der Werkstatt...
P.S.: Support gibt's im Forum, nicht per PN o.ä.

Hello numberonedefender
Also the thick black body in which all is plugged in is already new. But what exactly do you mean by that part? The upper small nozzle has a passage in any case. I've already tried that with my mouth. It blocks and lets air through in the other direction. That is its function, isn't it?
can the black block possibly draw false air?
greeting
Ralph

I'm talking about this part here:

http://www.juraprofi.de/Jura-Ersatzteile/C...lett::6741.html

>The nozzle body itself doesn't usually cause any problems, but if the valve of the intake manifold doesn't flutter ", the air admixture falters.
You don't necessarily see that on the manifold, it's a wearing part.

--------------------
Grüße, Manuel

Jura ENA Micro 9 (Küche)
Jura xF50 (Büro)
wechselnde Besetzung in der Werkstatt...
P.S.: Support gibt's im Forum, nicht per PN o.ä.

Thanks for the info.
My opinion you should order another part in addition? I mean, while I'm at it, saving on shipping, etc.. Gibst´s there still other "wearing parts"?
But the part I organize is clear to me.

Beauty week still.
Greetings
Ralph

I replace the suction hose regularly. There is a milk hose set from Jura with 4 hoses incl. adapter as well as 2 suction nozzles, which is comparatively much cheaper than buying the parts individually. There are no other wearing parts on the cappuccinatore.

--------------------
Grüße, Manuel

Jura ENA Micro 9 (Küche)
Jura xF50 (Büro)
wechselnde Besetzung in der Werkstatt...
P.S.: Support gibt's im Forum, nicht per PN o.ä.

Hello and a good evening
Also I was able to buy the part here today. And the tip was gold right. The foam is the same as on the first day.
Thank you again and the hose is also new. He had both right there and cheaper than on the net.
Thanks again
Greetings
Ralph

Thanks for the positive feedback

--------------------
Grüße, Manuel

Jura ENA Micro 9 (Küche)
Jura xF50 (Büro)
wechselnde Besetzung in der Werkstatt...
P.S.: Support gibt's im Forum, nicht per PN o.ä.

Hello together
Now I'm here again. So after the replacement of the small jet everything went back as "lubricated". However, we normally only made one cappu and one coffee at a time.
Now for Christmas we had a visitor and suddenly we wanted to draw 3 cappus out of the machine one after the other. She didn't find it so funny, made one without any problems and spat on the others again.
Now I would be interested, there's a diagnosis from you, why the latte foamer either doesn't like my guests :-) or why it can be that he only foams a cappu and then spits again. Couldn't the pump pressure come or go regularly? Do you have a cost for the Rep?
Thanks for your help.
Greeting
Ralph

On the one hand, it should be noted that all MWIPs are coffee machines rather than milk vending machines.

On the other hand, the most meticulous cleanliness of all milk-carrying parts must be observed in order to be able to permanently obtain foam.