Brewing unit not in home position

Hello coffee community,

>I have the following problem:

I replaced the brewing group at our Jura S7 Avantgarde. Actually, it went well. Although it was a bit annoying to fix the drainage hose with the clamp again, I succeeded after a long time. Only, now after the start of the brewing cylinder (sorry if I don't know the correct names), the white big gear wheel runs into the upper position and tries to turn further up, of course not possible. Error 8 will then be displayed after a short time. What have I done wrong and how can I fix it? If someone has the solution to this problem, I'd be happy to invite them to a coffee with the new brew group

Thank you in advance for a hopefully brilliant idea.

Hello,

have you overhauled the brewing group yourself, or bought an overhauled one?
I quote from another article, maybe you can exclude something.

The error can have different reasons, I simply count them:

1. After the revision brewing group wrongly assembled.
2. Baffle guide (cam tracks) inadvertently greased.
3. Baffle guide pawls worn.
4. Baffle group not inserted correctly, screws not tightened correctly.
5. Encoder fault, its wiring, power electronics communication.
6. Baffle group motor fault, wiring, seat or screw connection fault.

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Gruß Rudi

Hello Rudi,

I bought a revised unit. Screws are also all inside and the motor moves the brewing unit. Runs up and down a few times. After that she runs to the highest position and tries to run further up. Of course I can't. At some point the upper end is reached. A few seconds later it goes on error 08 and end in terrain. Of course I don't know the error encoder. There were no problems until the end. Except for the general strike because the brewing group was so difficult that nothing worked anymore.

Hello,

Since it is a revised brewing group, I would like to exclude mistakes at this time. Encoders seldom break, if the wiring or the correct seat would remain.
If you have actually inserted the brewing unit in the correct basic position?
White gear first turn it all the way up, then down until the piston is in the lowest position, i.e. the hole is completely open.

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Gruß Rudi

Hello Rudi,

I tried everything already. The crazy thing is, the machine does all the bullshit right after it's turned on. So not even heated up and then when trying to brew a coffee goes to error. Well, I'm at a loss. I guess I'll have to find a friendly technician.

Hello,

When the machine is completely disconnected from the mains and then switched on again, the brewing group always makes an "initialization run". First completely up, then down, then up again, at the end in home position. So that's perfectly normal.

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Gruß Rudi

Perhaps the memory deceives me, but I think an avant-garde does not make an initialization journey after disconnecting the network. Does the encoder really sit correctly in its place?

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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.

I checked the encoder again. It's all in place. The brewing group also goes up a bit, down a bit, about 3 - 4 times, then it wants to go all the way to the top and as I said, that's the end of the day.

This repeated jerking of the BG speaks in my opinion for a problem with the encoder or its cable... Check the cables to the control electronics; if the front door was open and perhaps a tick was pushed too far back, something loosens...

--------------------
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.

How many screws did you use to fix the brew group and where did you put the screws?

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Alle Tips und Hinweise erfolgen nach bestem Wissen - die Verantwortung trägt jedoch der Ausführende.
Daher bitte lieber einmal zu viel als einmal zu wenig fragen.

Vor allen manuellen Arbeiten am Gerät den Netzstecker ziehen !

Hello to this topic .

Also had the same problem. Have revised the brew group, inserted and then the part goes all the way up to the mech. stop and starts to rattle!!!!

Have then removed the brew group again and brought somewhere in the middle position.
Re-inserted and now the machine works again. I hope it stays that way.
Will now test the machine for a few days!
How exactly this behaves with the encoder, I would also like to know!
What does the encoder do exactly? I think the thing is a pure step counter.
Determines the required number of steps from the lower to the upper end stop.

Now I ask myself, or you :

Do you have to pay attention to a certain position when inserting the brew group!!

Does anyone really know more about this topic?

:mellow:Hello to this topic .

Also had the same problem. Have revised the brew group, inserted and then the part goes all the way up to the mech. stop and starts to rattle!!!!

Have then removed the brew group again and put somewhere in the middle position.
Reinstalled and now the machine works again. I hope it stays that way.
Will now test the machine for a few days!
How exactly this behaves with the encoder, I would also like to know!
What does the encoder do exactly? I think the thing is a pure step counter.
Determines the required number of steps from the lower to the upper end stop.

Now I ask myself, or you :

Do you have to pay attention to a certain position when inserting the brew group!!

Does anyone really know more about this topic?

When revising, you steal BG in home position, according to the instructions, but, normally, BG steals itself into correct position, thanks to decoder.