Any cover ends up in the collection container
Posted by: m0rten December 19, 2021 10:22 pm
Hello everyone!
On my Nivona CafeRomatica (NICR 626), all the liquid ends up in the drip tray every time I rinse and draw coffee. It worked fine until the brewing unit was removed for cleaning once a little "rough". I do not know, however, whether this is now the cause that this might have loosened something somewhere or how the described can be the consequence.
After researching the problem, I had concluded that either the drain valve or the brewing unit could be a defect, a seal not properly attached or something similar. Both, so first drain valve and then the brewing unit, but I have already replaced with new spare parts - unfortunately unsuccessfully, it still runs everything into the drip tray. It seems as if the water leaks out at about the transition from the drain valve to the inlet nozzle of the brewing unit.... I once captured this in 2 videos, one while rinsing, one while brewing coffee:
Flushing:
https://youtu.be/7it6LkAPHEMKaffeebezug: https://youtu.be/VoFdZl3W8jU
//youtu.be/VoFdZl3W8jUFür any tips on what else could be tested or what could be the cause, I would be very grateful.
best regards,
m0rten
Posted by: swolle December 19, 2021 10:43 pm
Both videos look like clear water, does the ground powder get wet at all?
Posted by: Guest December 20, 2021 02:01 pm
Thanks already for the tips!
>> Both videos look like clear water, does the ground powder get wet at all? >> Please check the inlet nozzle.
The powder ends up completely dry in the container. As for the inlet port, I thought that might have leaked something, but since even with a completely new brewing unit the problem is the same, I guess that can be ruled out.
>> and check the valve connection
Have again unscrewed and checked at the drainage valve, but looks to me like I perceived it in many videos. Have times a photo of it also attached. But I noticed that after flushing (after nix comes out in front) in the valve is a lot of water? You can see in the 2nd photo that there is quite a bit of liquid in the valve directly after flushing, and it also seems to be a bit damp around the valve in general... Can this be normal or could this indicate something?
https://ibb.co/sjp7wGk
https://ibb.co/thh6tXp
Posted by: Guest December 20, 2021 02:04 pm
Thanks already for the tips!
>> Both videos look like clear water, does the ground powder get wet at all? >> Please check the inlet nozzle.
The powder ends up completely dry in the container. As for the inlet port, I thought that might have leaked something, but since even with a completely new brewing unit the problem is the same, I guess that can be ruled out.
>> and check the valve connection
Have again unscrewed and checked at the drainage valve, but looks to me like I perceived it in many videos. Have times a photo of it also attached. But I noticed that after flushing (after nix comes out in front) in the valve is a lot of water? You can see in the 2nd photo that there is quite a bit of liquid in the valve directly after flushing, and it also seems to be a bit damp around the valve in general... Can this be normal or could this indicate something?
https://ibb.co/sjp7wGk
https://ibb.co/thh6tXp
Posted by: swolle December 20, 2021 07:56 pm
The photos are not visible...with spare parts are often the seals are not included, please check whether they are on it. Remove the mentioned parts, hold one side closed and blow or suck on it to check for leaks.
Posted by: m0rten December 27, 2021 12:47 pm
With the new drainage valve was a seal on the piston, is on the attached picture at the red line in the valve also recognizable (and with arrow extra marked). Where no seal was on it, however, is on the hose that goes into the black part and is then fastened with the clamp, I also marked it with an arrow.
Everything seems to be tight at the inlet connection. Position of the valve seems to me also correct with the web. You can also see the driver on the picture, luckily I hadn't forgotten about it.
Can the missing seal on the hose be the problem? It comes in any case water in the valve eg when flushing, that is then in it as written in one of the previous posts. Attach a picture of that again too!
http://Bild1
http://Bild2
Many greetings
,m0rten
Posted by: Schlawi December 27, 2021 03:16 pm
The water that stands there must not be. Clean the expansion chamber where the hose goes. This must drain pressureless.
On the hose must also be a seal, otherwise the water runs down the drainage valve.
This could or will probably also be the reason why no water arrives in the brew group.
Posted by: m0rten December 29, 2021 08:54 pm
Currently still waiting for the seal for the hose and will then report... thanks for the time being for the quick help!
Posted by: m0rten January 01, 2022 04:34 pm
Have meanwhile also given on the hose a seal and tried it again, unfortunately without success. Water still runs out somewhere and comes when rinsing already not front at the outlet out where it should. Am in this regard quite perplexed, after I have replaced the drain valve and brewing unit completely and also everywhere a seal is present where one should be.... Tend insofar slowly to simply purchase a new device or before still ask a repair service for a quote
Anyway, happy new year! 
Posted by: Schlawi January 01, 2022 06:04 pm
The long plunger must be hooked into the lower part. Is that hooked in?
That would be the only thing I would look at.
From which corner do you come? Maybe someone here can help you locally.
Posted by: Christian-S December 28, 2023 09:23 pm
Hello everyone, I have a similar problem.
The drive unit on my Nivona was defective and I replaced it with a new one. I also bought a new brewing unit to prevent further problems.
After installation, the water ends up in the drip tray and the coffee ends up dry in the bowl.
The drive unit came with a new trainagen valve. I thought the valve might be defective and replaced it with the old valve, which also has the same effect.
What could be another cause?
Greetings Christian
Posted by: Schlawi December 28, 2023 10:38 pm
What kind of Nivona? With an electric ceramic valve?
Posted by: Christian-S December 28, 2023 10:51 pm
Sorry,
NICR 825
Posted by: Schlawi December 28, 2023 11:01 pm
Have you checked the ceramic valve to see if the water runs from there into the drip tray? There is a relief line that should go into the drip tray.
Posted by: Christian-S December 28, 2023 11:23 pm
I'll take a look tomorrow. What if?
Did I forget to connect something?
Posted by: Schlawi December 28, 2023 11:33 pm
I can't tell you that either. It would just be another possibility. Does the machine have an outlet valve? I don't know the machine exactly.
What did you dismantle to replace the drive? Did you install the driver correctly? You can hear this after the first start. 
Can you post a picture of the side when it is open?
Posted by: Gast_Uli January 21, 2024 05:31 pm
| QUOTE (Schlawi @ Thursday, December 28, 2023, 11:33 pm) |
| I can't tell you that either. It would just be another possibility. Does the machine have an outlet valve? I don't know the machine exactly. What did you dismantle to replace the drive? Did you install the driver correctly? You can hear this after the first start. Can you post a picture of the side when it is open? |
Hello,
I have exactly the same problem.
Error 8 new gearbox incl. drain valve fitted.
Replaced the upper microswitch on the worm gear due to inertia.
I disassembled 2 brew groups, one of which was cleaned and greased.
Everything is fine. Error 8 eliminated
Now my coffee and the rinsing process ends up in my drip tray.
I have blown through all the hoses and they are all clear.
What I don't understand is that the problem exists with the old brew group and with the cleaned one.
Perhaps someone could help me with this.
Posted by: Coffee-Flo January 31, 2024 10:04 pm
Hello dear coffee friends,
First of all, many thanks to all the helpers here. The one or other tip, also for the milk frother, has already helped me a lot.
Unfortunately, our Nivona (NICR 680) now has a very similar fault to the one described above.
It started on Sunday with no more coffee coming out. Flushing ran and still runs normally from the outlet. I then cleaned the brewing unit and cleaned everything around the drain valve, but the fault remained.
While tinkering around, I reduced the coffee strength from 3 to 2 and lo and behold, coffee came out.
If I set it back to 3, clear water runs past the brewing unit on the left?
Does anyone have any idea what could be faulty here?
Somehow it seems as if the back pressure is too high with more coffee and some valve opens.
FYI: The brewing unit is less than 6 months old.
Many thanks and best regards
Flo
Posted by: Coffee-Flo February 03, 2024 11:14 am
Hi,
doesn't anyone have any ideas? 
Greetings
Flo
Posted by: Schlawi February 03, 2024 12:37 pm
A valve does not open. The brewing unit moves into the drain valve. And that's all there is to it.
What does the powder look like? Is it very coarse? Over time, the grindstones wear out and the powder becomes coarser and the volume increases.
Is it possible to read out the coffee quantities on the machine?
Where on the left of the brewing unit does the water run? At the point where the brewing unit docks into the drain valve?
Posted by: Coffee-Flo February 03, 2024 03:28 pm
Hi Schlawi,
Thank you very much for your feedback.
The powder is really quite coarse, and only slightly moist after a faulty extraction.
The machine has 4115 extractions, so not many actually.
The water runs out very far at the front, I can't describe it more precisely now. But when I unscrew the cover after a test, it actually looks quite dry in the valve chamber (more like a little precipitate from the steam)
You say a valve doesn't open there. Are there any valves after the drainage valve that could be responsible for this?
Could it be a hairline crack in the drainage valve? Since it works with less powder?
I'll try to take pictures and possibly a video later.
Posted by: Schlawi February 03, 2024 03:51 pm
Drainage valve would be possible. Also a hairline crack in the inlet nozzle of the brewing unit.
4000 brews is not a lot. That shouldn't be the problem.
Posted by: Coffee-Flo February 03, 2024 04:07 pm
The brewing unit is practically new. It has only had just under 500 extractions. I think that can be ruled out. It was replaced because it had the same problems back then. The new one has worked well so far. Could it be that it's defective again?
The brewing unit, both the old and the new one, is difficult to remove and install...
Posted by: Schlawi February 03, 2024 06:19 pm
The fact that the brewing unit is difficult to remove is due to the pin that drives it. There is a rubber on it. You can put a little salad oil on it with your finger. The rubber can be replaced.
I don't think the brewing unit is defective again. I would replace the drain valve. It doesn't cost the earth.
Posted by: Coffee-Flo February 04, 2024 09:46 pm
Hi Schlawi,
Thank you very much for your support. Can I simply replace the valve from the "front" through the shaft of the brewing unit?
Unfortunately, I couldn't find any detailed instructions or a video. Seems to be different for every machine.
Can you help me here?
Greetings
Posted by: Schlawi February 05, 2024 07:05 am
No, the drive must be removed for this.
Posted by: Mr Kaffe February 05, 2024 07:46 pm
I have a 1040 the same problem water ends up in the drip tray. Coffee pad is dry. I have replaced the drain valve and checked all the pipes. Dismantled the brewing unit and put in new seals. Didn't help... spent three evenings screwing around without success. Yesterday I had the decisive idea, just decalcified it and now it works again. The machine definitely does not indicate that it is calcified for whatever reason, that was my problem. The machine has only made 2000 cups. I will now always descale it when I change the filter.
Posted by: Schlawi February 05, 2024 08:45 pm
The only difference is that the 1040 has an electric ceramic valve that may have been clogged, whereas the 680 has a simple design.
Filters give the illusion of safety, but you should still descale them regularly.
Posted by: Coffee-Flo February 06, 2024 02:02 pm
Hi,
thanks for the information. Our machine is descaled regularly. The last descaling and cleaning was in mid-January. I think I can rule that out. The valve has been ordered, I'll have the courage to dismantle the machine when it arrives 
Posted by: Coffee-Flo February 28, 2024 08:01 pm
So, brief feedback. Disassembling the machine went surprisingly quickly. Everything cleaned, new valve fitted and reassembled. Less than 2 hours and lo and behold, everything is running again
Many thanks for your support!
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