No coffee from coffee spout

Hello together,
our so far beloved Jura ENA Micro 1 doesn't make us any more coffee!
After selecting the desired coffee you can hear the familiar grinding noise, then the familiar sounds from the flowering group, but then no coffee comes out of the coffee spout. The trestle bowl is then filled with dry, freshly ground coffee powder and the drip tray with hot water. Between the individual steps you can hear an unprecedented sound in 3 places. I made a video of the process and set it to youtube:
Title: "Jura ENA Micro1 Error description"
Link:

At second 6, 26 and 33 you can hear the unprecedented sound.
You have an idea what's wrong?
Many thanks in advance,
Stefan

Good evening,

da the brewing unit and drainage valve will need new gaskets and thorough cleaning.

Gruuss HWS

...I thought about the gaskets as well, but the strange noises don't fit. The machine is also only 2 years old, the seals can't already be broken, or?
Stefan
addition: I had a sealing problem once with the previous Jura. There was a "coffee slush" in the trestle bowl. With new gaskets in the broth egg this error was then repaired. In the current case, dry coffee powder ends up in the marc container, i.e. no water at all enters the brewing unit. The mistake should have something to do with "water distribution", right?

If the device is only 2 years old, then I would claim the guarantee.
But you can also try a decalcification with strong concentration of the decalcifier. There's probably a cartridge heater in the Ena. There I already had 2 Jura machines, however Impressa E55er, with which this was totally too much for loud lime.

Greeting HWS

With the "water distribution" you may be right. With you, the drainage valve doesn't do what it's supposed to. Either it remains open (tappet cap or seal) or it is permanently opened by the electronics. For some reason I can't watch the video at the moment. But I guess a broken cap...
It has nothing to do with lime...

--------------------
Pessimist: Ganz schön dunkel hier...
Optimist: Ich seh ein Licht am Ende des Tunnels...
Realist: Mist, da kommt ein Zug...
Zugführer: Was machen die 3 Deppen auf den Gleisen?

Hello Dancemann,
thank you for your feedback. Then I will have a look at the drainage valve (I had already changed the gaskets in my old Jura). The video doesn't actually show much, only the above described process. I put it in mainly because of the noises (3 times "humming"), thought somebody could do something with it.
@ HWS: Unfortunately the guarantee doesn't work. Have looked, the machine is exactly 2 years and 2 months.
Related to calcification: We have a descaling device in the house and I descale the Jura regularly. Coffee is supplied in 6 cups per day. I'd just expect nothing in law to be more calcified. But I'll have a look at that too.
VG,
Stefan

...so now I have removed the flower group and cleaned it completely with the drainage valve in the sink:

there was a lot of dirt, especially in the area of the drainage valve:

Then I reassembled everything and it worked (made another video): Link =>

All finally assembled installed in the kitchen and done another test run => everything ok.
NOW COMMTS: One hour later I wanted to show my successful repair to my better half and already when I switched on again this stupid noise and again no coffee from the outlet and again ground coffee in the grape marc container (everything again as in the first post and in the first video)!!!
Has someone given me a hint where the mistake lies here.
Thank you in advance,
Stefan

Cleaning the outside isn't enough! You should take them apart completely and replace all the gaskets.

...is there a manual for the disassembly of the drainage valve at the Jura ENA Micro1, do I have to disassemble the brewing group?

Outside cleaning does not really help much. You should take the brew group and valve apart and "revise" them. Have a look at komtra.de for the instructions. There is a lot for the ENA and also suitable spare parts.
If the drainage valve is identical in construction to the normal Jura, pay attention to the "white valve cap" on the metal pin! The cap may rotate, but cannot be removed! Otherwise the valve does not close any more... If the cap is defective, you must replace the entire valve or order a replacement cap.

--------------------
Pessimist: Ganz schön dunkel hier...
Optimist: Ich seh ein Licht am Ende des Tunnels...
Realist: Mist, da kommt ein Zug...
Zugführer: Was machen die 3 Deppen auf den Gleisen?

Good evening,
I have had a look at "juraprofi.de": the ENA Micro 1 has the same brewing unit and drainage valve as the other models. Only the original valve cap looked a bit different. But as a replacement for the cap they offer the same brass cap as for the other models. And a manual for the ENAS can also be found under the Ruprik: Service manuals.

Greuss HWS

Hello everybody and first of all many thanks for your inputs!
I have now extended the brewing unit again. I noticed that contrary to the last opening of the housing, a pin now protrudes from the middle of the housing:

If this pin is extended, the corresponding "servomotor" might cause the error?
I still tried to disassemble the drainage valve. Unfortunately a brown cover resists further disassembly! How can I remove this cover?

I also noticed a crack in the housing of the drainage valve. Does the drainage valve have to be replaced completely due to this crack alone?
VG,
Stefan

Hello,

above Danceman mentioned:
" With you the drainage valve does not do what it is supposed to do. Either it remains open (tappet cap or seal) or it is permanently opened by the electronics. "

I am of the opinion that the rupture does not cause the tappet cap to go back and forth easily enough, or that the rupture was caused by the tappet cap. You're writing about "humming noises. In any case, the crack must have been caused by something. Therefore I would replace the drainage valve with another one in this case. About the other picture may someone else contribute something.

Greeting HWS

...so now I disassembled the flower group until I could remove the two side parts, then you could pull the drainage valve down from the side guides.
Then it was also easy to remove the brown cover => this is attached to the valve with two 8 Tox screws:

Afterwards I completely disassembled the drainage valve, cleaned it and reinstalled it with the old seals (no new ones) and the crack in the housing.
Test run and the following cleaning program ran without problems. The first coffee has tasted such again!
VG,
Stefan

What happened to the cap? Tight on it and not smart either?

--------------------
Pessimist: Ganz schön dunkel hier...
Optimist: Ich seh ein Licht am Ende des Tunnels...
Realist: Mist, da kommt ein Zug...
Zugführer: Was machen die 3 Deppen auf den Gleisen?