Jura Impressa E85 - Miscellaneous questions

Hello everybody,

This week I got a used Jura Impressa E85 as a present, which probably has some quirks. What she is missing exactly, nobody knows exactly anymore, because she stood around unused for some time now and nobody can remember exactly...

What was immediately noticeable from the outside was that water had leaked out again and again at the front right and the water tank was extremely calcified. In addition, the machine was very dirty.

After switching on, the display read "Clean device". But the cleaning process didn't end, because the message "Fill water" appears again and again, although the tank was full.

On the weekend I disassembled it completely according to the online instructions and cleaned it thoroughly.

1.) Since the error message "Fill water" still comes after thoroughly cleaning and descaling the water tank, I suspect that the reed contact is defective or something is wrong with the float. Could it be? Are there ways to test exactly what it is?

2.) The problem with the leaking water at the front right is, as far as I can judge as a fully automatic coffee machine newcomer, a broken membrane regulator, which was already completely rusted. Also here my question: Am I right with my assumption or can it also be due to something else?

3.) When I took the brewing unit apart, I noticed that the drainage valve was extremely calcified and dirty. In addition, there was always quite a lot of water running into the container. Can it be connected?

4.) Unfortunately, nobody knows anymore if or when seals have been replaced. Is there a way to tell that they need to be swapped? I'm afraid I don't know what they looked like, new.

5.) Is there a possibility to display the previous coffee purchases? Or even references since a last maintenance or something like that?

6.) Since the machine stood for some time and I don't know how often or if it was decalcified at all, I would like to decalcify it thoroughly after the repairs. I read about amidosulfonic acid, which should be very suitable for cold descaling. Is there a possibility to stop the descaling process in between for approx. 30 min, so that the descaler can act better than if it only runs through? Or should the descaling process be carried out more often in succession?

Many thanks for your answers. I am unfortunately a complete newcomer in the field...

Many greetings, Lisa

Quite a big job for a rookie. If you will be happy with such a machine you only know afterwards..But after all it's an E85... it's worth it then..

Imm water tank is probably just the float jammed... you can see if it swims correctly if you put water in the tank.

The diaphragm regulator may be defective... but more likely that the rubber seal ring of the pressure hose from the pump is defective.. of these small sealing rings you will still need several.

For the topic brewing unit and drainage valve I would immediately start a "round blow" and buy a revised brewing unit incl. drainage valve..should not actually be so expensive.

I also recommend a new outlet valve for your device...

On the website of Jura there should also be a manual for downloading the above... It also says how to read the covers.

Hello,

Thank you for your answer.

Zu 1.) The float is freely movable and also goes up as soon as there is water in the tank. Since the float is only a magnet, nothing else can be broken. So it must be either the reed contact or something on the circuit board.
I order the reed contact and install it...

To 2.) Since the diaphragm regulator is completely rusted, I need a new one anyway. At that time I can also change the seal.

Zu 3.) Why does the entire brewing unit have to be exchanged? All the plastic parts look like new now. I already picked out the gaskets and wanted to order them.

Zu 4.) See above.

Zu 5.) Because of the covers I had read the instruction manual, but I had simply overlooked the reading of the covers. Thanks for the hint, now I've found's.

To 6.) See above.

Many greetings, Lisa

If the brewing unit otherwise still looks good, an exchange of the seals makes sense of course..

For the exchange you best look for an instruction... some things are to be considered there (the lateral guides are not greased...otherwise you can produce a "reverse runner) ...The lower piston must be used with force, as otherwise it can move too far up and block..

When you have reassembled the brewing unit, test it beforehand by operating it manually...so that you check that the entire cycle is running properly..

Insert it so that the solenoid switch can operate the drainage valve well...

When you have reassembled the brewing unit, test it beforehand by operating it manually...so that you check that the entire cycle is running properly..

Insert it so that the solenoid switch can operate the drainage valve well..

>Insert it so that the solenoid switch can operate the drainage valve well..

>> When you have reassembled the brewing unit, test it beforehand by operating it manually..so that you check that the entire cycle is running properly..
br>.

Hello Lisa,

--------------------
Gruß Rudi

Hello Rudi,

Many thanks for the tip, but I can't try that right now because the machine is disassembled.

Many greetings,
Lisa

Hello together,

only wanted to report an intermediate result. I ordered new gaskets, a new drainage valve, a new diaphragm regulator and a new reed contact.

Yesterday I changed all the parts and reassembled the machine.

Then I ran the cleaning and descaling program and so far everything fits. The coffee is still a bit thin, but this is probably due to the grinder settings. I'll take care of it this weekend.

Thank you again for your help!

Final result:
Grinder I adjusted correctly yesterday and tested until dry, firm pomace pads fell into the bowl.

Unfortunately some of our freshly bought Fausto beans went on it, but now everything really fits.

The bottom line is that you (woman) can definitely repair such a machine with some craftsmanship. Especially since there are really great instructions on the Internet that you can use as a guide.

Many greetings, Lisa

Nice of you to do so well. Congratulations on that. :-)