Jura Z5 624 A2 Error 6 ceramic valve spinning

[lifeisfun]

I just got hands on very dirty Jura Z5 (624 A2)
Didn't even turn it on and cleaned it to very good condition.
Immediately after power on the machine is spinning the ceramic valve motor for about 20 seconds and then it stops and gives out Error 6.
There is no calcification in the valve and both microswitches are tested good.

Any ideas how to troubleshoot this without spending fortune replacing parts at random?

Any help would be appreciated!

Thanks

 

[lifeisfun]

Update:
Opened the motor gearbox and the main gear was freely spinning on the motors shaft.
Used dap of crazy glue and now it drives the the gears fine.

Since I disconnected the motor from the valve and moved the valve and gears can somebody please point me
to some drawing or explanation how it should be correctly be assembled back together?

Thanks

 

[Black Sheep]

About the assambling look here:

Elektrisches Keramikventil - Einbaulage von Keramikscheiben und Mitnehmer - Kaffeevollautomaten Forum rund um die Reparatur & Pflege

Hallo, anbei ein paar Fotos, an denen man erkennen kann wie die verschiedenen Teile des elektrischen Keramikventils richtig montiert werden - hier am Beispiel eines Ventils der Melitta Barista, ist aber bei Miele, Nivona und Jura-Geräten identisch.…

komtra.de

In many cases oxidation or a defect in the 4-pin
plug for the valve is the reason for error 6.

 

[lifeisfun]

About the assambling look here:

Elektrisches Keramikventil - Einbaulage von Keramikscheiben und Mitnehmer - Kaffeevollautomaten Forum rund um die Reparatur & Pflege

Hallo, anbei ein paar Fotos, an denen man erkennen kann wie die verschiedenen Teile des elektrischen Keramikventils richtig montiert werden - hier am Beispiel eines Ventils der Melitta Barista, ist aber bei Miele, Nivona und Jura-Geräten identisch.…

komtra.de

In many cases oxidation or a defect in the 4-pin
plug for the valve is the reason for error 6.

Thanks for reply!
Got it working, in my case the problem was that the motor shaft was spinning free and not powering the gear box.
After gluing the brass gear on to the shaft it started to work