Nivona CR 831: Brewing unit jams
Posted by: Mickey November 25, 2013 11:21 am
Hello!
>My device is only two months old.
I clean the brewing unit every week.
Today it suddenly didn't come out as easily as usual, and now I can't use it at all.
Had any of you already had this problem or does anyone know a trick?
Heartfelt thanks in advance,
Greß
Mickey
Posted by: Martin (Hobbytechniker) November 25, 2013 11:40 am
Probably the device is not in the basic position... completely off at the main switch and switch it on again... Press standby so that the appliance switches on... the machine then moves to the basic position so that the brewing unit can be used again.
Posted by: Mickey November 25, 2013 11:48 am
Hello Martin!
Many thanks for your quick answer!
I followed it right away.
The machine then wants to reset the time again, reports that the brewing group is removed, but then I still can't use it.
It brings something if I wait a little?
Greß, Mickey
Posted by: Martin (Hobbytechniker) November 25, 2013 12:05 pm
No, waiting doesn't help. The brewing unit must also be in the starting position for insertion... Is that her?
Posted by: Mickey November 25, 2013 12:14 pm
Oops, I didn't think of that - but unfortunately I don't know how to determine it either... 
greeting, Mickey
Posted by: Martin (Hobbytechniker) November 25, 2013 12:31 pm
You probably have the brewing unit with the lever that you have to swivel to take it out... unlock it and turn the round holder for the drive with a suitable object until it reaches the stop where the lower brewing chamber is not at the top of the brewing cylinder but is swivelled completely away again...lever then back on and then insert... should nothing turn after the unlocking... please no force... then there's still a safety device built in
Posted by: Mickey November 25, 2013 02:17 pm
Yes, the lever cannot be turned back - I always did this only after inserting the brewing group.
May be I can turn the lower brewing chamber from below with a lever, or am I wrong?
In any case, it still doesn't work. I'm too doof.
I'll keep trying and thank you very much for being on the spot so quickly, Martin!
Posted by: Mickey November 25, 2013 03:12 pm
Now I have phoned the hotline (Austria).
There I was told that the initialization of the VA cannot take place if the brewing group is not in the machine.
I have now carefully examined the VA - the position of the gearwheel is such that I cannot reach it by turning the drive mount.
In retrospect I can think of an explanation:
I was distracted yesterday when I actually wanted to remove the drip tray and pressed the reference button instead of the standby button - for 180 ml, no cup to grab far and wide. To avoid flooding, I did not cancel the reference with exit, but with the standby key. The drive might have gotten stuck in the wrong place. And I can't fix that myself. 
Posted by: Martin (Hobbytechniker) November 25, 2013 06:23 pm
Hello,
there would also be the possibility to simulate the presence of the brewing unit by pressing the corresponding microswitch, so that the device goes into the basic position.
Or to manually unlock the lever lock on the brewing unit, in case the brewing unit goes in almost like this, but on an almost new machine, and if you are not familiar with the machine, both would not be so good.
Posted by: Mickey November 25, 2013 06:38 pm
You're right, Martin - unfortunately I don't know where the microswitch or the lever lock is.
I called the hotline again - the gentleman said, my abort action should not matter. He was rather of the opinion that the drive could be defective - he would have had such a case recently. - Nürnberg has not contacted him yet.
Your remarks were very helpful for me, because I was or could be a little bit more closely occupied with my machine.
Posted by: Martin (Hobbytechniker) November 25, 2013 06:47 pm
It is also nice if you still have warranty on your device, but Nivona devices are very reliable and durable.
Posted by: Mickey November 25, 2013 10:25 pm
That's true - but if I have to send the device, that doesn't make me happy.
Unfortunately my cellar is so small that I only keep the original packaging for about a month. That was probably too short this time. But let's see.
I will tell you how it goes on - maybe someone will be interested.
Thanks again, Martin!
Posted by: Mickey December 26, 2013 05:35 pm
Short interim report:
On November 26th, one day after my call to the Austrian hotline, I checked because I didn't get an answer for 24 hours. - I would like to send the device in for repair, it would be picked up by GLS on Nov. 28th.
On Nov. 28th I waited - nobody came.
On Nov. 29th no person from GLS appeared - that was now a Friday.
Monday, Dec. 2nd - again no one.
Tuesday, Dec. 3rd.I called the hotline again to find out what was going on, and after some time I got the answer that GLS had gone to the wrong address, nobody there had had a VA to pick up, and so the order had been cancelled.
In the afternoon of Dec. 3 my device was finally picked up - and since then I've been waiting. My coffee beans dry out...
When I called the gentleman from the hotline on Dec. 2, I expressed my hope to get the machine back before the turn of the year. The Lord thought this was a joke. But I don't think that was a joke.
Coming Monday, Dec 30th, I'll call again.
How long do such repairs take on average? I suspect that my VA first had to be sent to Vorarlberg and then to Nuremberg, the way back will look similar, which surely extends the matter.
Greß, Mickey
Posted by: Mickey December 26, 2013 05:37 pm
In the post preview, my post is always properly formatted - but as soon as I send it, all paragraphs are gone.
I'm sorry - it's not my fault if the post is not easy to read.
Greß, Mickey
Posted by: Mickey December 30, 2013 02:21 pm
Today I contacted the hotline and had to learn that my device had already been shipped on Dec. 11 WITHOUT informing me! -
Ostenly GLS would have tried to deliver the VA three times - I didn't receive any information about that either. -
Now the VA is in some central warehouse - let's see when I get it. -
I'm quite outraged about this mess, because already at the pick-up nothing worked - see above. -
Greetings, Mickey
Posted by: Mickey December 30, 2013 02:37 pm
Now the thing finally has a conclusion:
The gentleman from the customer service helped me now in detail and informed me, where I can pick up my equipment. In 1-2 hours nothing stands in the way of a coffee. 
Posted by: Darkibuh February 01, 2015 10:37 am
Hello,
I had the same problem today.
Brew unit cleaned and used, after switching on the machine came then error code 8 (There one must switch off the machine over the main switch and switch on again), after switching on came this error code 8 but again, so the machine switched off and brewing unit again removed and cleaned, then I wanted to use the brewing unit again, nothing worked.
brewing unit didn't go in anymore.
error solution was then press the microswitch in the upper right corner (it's a bit hidden) and switch on the machine, machine moves to home position and the brewing unit could be put in again.
some things can be so easy, but without help in this forum, it wouldn't have been that easy :-)
Posted by: Claus October 06, 2018 10:17 am
Thank you very much for this helpful entry.
---> the tip with the microswitch also helped me !!
My "mistress" had already switched to bad mood / "bad weather" because her beloved machine broke down.
Now the box is running again and the sun is shining 
.... and saved a lot of money for customer service.
Additional info:
The micro switch is something hard to find!
It is a small white button and sits well hidden behind an oval opening approx. 5cm above the drive shaft at approx. 1 o'clock.
Many greetings
Claus
Posted by: Gast_Andreas H. September 01, 2019 02:49 pm
| QUOTE (Martin (hobby technician) @ Monday, November 25, 2013, 18:23 hrs) |
| Hello, it would also be possible to simulate the presence of the brewing unit by pressing the appropriate microswitch so that the unit goes into its initial position. Or to unlock the lever lock on the brewing unit by hand, if it almost goes in that way but on an almost new machine and if you don't know how to use it, neither would be so good. |
Had the same problem. I readjusted the home position with a microswitch. The brewing group is still stuck, although the basic position fits exactly with the brewing insert. I then moistened the rubber on the drive axle a little and the brewing unit was ready to be inserted and locked. Possibly a drop of silicone spray helps permanently. If only it were dabbed with an ear stick.
Posted by: Gast_Dodo November 23, 2019 06:20 pm
I remember there is some easier way to get the machine in correct starting position but cannot recall exactly how.
The unit is to be turned off completely. Then some more button is supposed to be pressed at the same time as the start button is pressed.
This advice I got from the Nivona customer support by phone - sorry to say, I didn't write the procedure down on paper or computer.
Perhaps anyone here knows?
Posted by: Gast_Chris March 09, 2020 06:25 pm
Today I got the key combination EXIT and Arrow pressed until the actuator has moved to home position.
Worked for me .
Posted by: Gast_Floh April 30, 2020 10:46 pm
Thanks to all the information given here.
After the error 8 was also displayed by us, I could not use the brewing group anymore. After bypassing the micro switch in the upper right corner and switching on the machine at the same time, it worked again. The switch is a bit hidden. It is
best to use a blunt, narrow object to operate it.
My wife is "fluffy" again and I am her hero. :-)
Posted by: HL May 22, 2020 02:22 pm
Have found the problem several times and yesterday finally found the cause.
The brewing group was always heavy on the drive axle.
Yesterday not at all.
After one hour finally the redemption.
When the brewing unit is pulled off with or without force, sometimes the rubber comes off the drive axle and gets stuck
in the holder of the brewing unit.
Simply pull it out of the brewing unit and put it back on the drive axle. Looks like a crown the wide seal.
Hope it helps you too.
Posted by: thales_2020 March 08, 2021 01:14 pm
Hello everyone
thanks to your solutions I just solved my problem.
How can you hide the reset switch and why is there nothing in the manual?
Who knows how many people have already taken their machine to customer service and they just pressed a little switch and then wrote a nice bill for the `repair`.
Oh man - the Internet is sometimes a great medium for such a research
Posted by: Grebe Christine September 15, 2021 10:26 am
The brewing unit is stuck...cannot be removed
Posted by: AnitaMaria October 17, 2021 02:01 pm
Stay cool. Nivona is a top machine. If the brewing unit is stuck, it's not in the right position. Turn off the coffeemaker. Put everything back in. Fill it with water and turn it on.
Then the brewing unit will align itself. Then unplug it and it should come out. After cleaning: If the brewing unit doesn't come out... Look inside on the top right. There is a small switch. You have probably adjusted when cleaning. Then turn it and it goes in... Don't force it. It always has a reason when the brewing unit blocks.
Posted by: Gast_Michael December 17, 2021 09:56 am
Thanks for the numerous tips. The descriptions here are top. The trick with the small Micoschalter and the description where he sits was brilliant.
Posted by: Basti G. April 12, 2023 11:26 pm
I thank the gentleman with the tip with the drop of oil from the heart 
Honestly, this tip sounded the most absurd but after 1.5 h of despair has really sufficed a small drop of rap oil on the drive shaft and the brew group slipped like butter in the machine. The tip with the micro switch can be found really everywhere on the net...but sometimes a simply the classic...a drop of oil and a hand edge blow. 
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