bosch benvenuto B20 / TCA6001

My Bosch Benvenuto B20 (TCA6001) still grinds the coffee beans normally, in my opinion it behaves as usual, but at the end not a drop of coffee runs into the cup. Instead, the water runs somewhere internally only into the drip tray and the ground coffee is then completely dry in the marc collector. I've taken the device apart before, but I couldn't find any loose hoses? By the way, the last coffee came out of the machine quite normally, so no "warnings" can be seen.
Greuss




URL=/kaffeemaschinen/bosch/28_tca6001_benvenuto_20/index.php]Bosch TCA 6001 benvenuto B 20[/URL]

Hello,

I don't have a <solution but exactly the same problem - just yesterday I posted here. We should just close up soblad someone knows something new... ok? I just removed the brewing unit, but I'm afraid this isn't the problem here....

Hello,

>In this context it would be helpful to know which
subtype of the B20 is involved, as there are more / different error possibilities with the TCA6001/01
than with the TCA6001/02
and higher.

See parts in brackets at the matching watercourse plan
On the Komtra website:
http://www.komtra.de/KOMTRA_WASSERLAUF_BSH_20_45.pdf

Gruß
BS

--------------------
Ich schaue hier nur noch ganz selten vorbei.
In verschiedenen anderen Foren bin ich mit
dem gleichen Nickname zu finden, falls mal
jemand Hilfe benötigt kann ich vielleicht dort
helfen.

Thanks for the answer. The exact type is TCA6001CH\02
I have now seen that the water flows through the drainage valve directly into the drip tray. But Deises seems to me to be in order, also with the brewing system I don't see anything conspicuous...
merci!

Hello,

if the water escapes through the drainage valve,
in 95 % of cases the drainage valve is defective - even if you see
nothing "conspicuous".
After the only gaskets are defective, or
the support of the valve stem is broken, you can either overhaul the valve or replace it
.

If you have a possibility to test another brewing unit
in the device, you should do this as well, because
there might also be a problem with the brewing unit.

Greß
BS

--------------------
Ich schaue hier nur noch ganz selten vorbei.
In verschiedenen anderen Foren bin ich mit
dem gleichen Nickname zu finden, falls mal
jemand Hilfe benötigt kann ich vielleicht dort
helfen.

Hi

Thanks for the info. Then I'll try to find the drainage valve.

Greuss

Hello guys, I took the complete machine apart and cleaned it (incl. all hoses, valves, brewing unit and pump, because I had the same problem). After assembly, the same thing was in green. After that, out of desperation, I simply cleaned the machine 2x without decalcifying it ! Now I don't know what to do either. The water doesn't seem to run into the brewing unit, but I have no idea where the problem is. Of course, I'm also grateful for more info ... Greetings Aspi

Hi,
I have the same problem. The machine is somehow clogged.
After I had been running the machine 4 weeks besides, the cleaning program went through without descaler/cleaner tablets and I cleaned the machine manually (brewing unit, compensatingvehaelter and drain valve) it went for 4 weeks. Then the same problem.
No coffee came out of the outlet. Everything landed in the catch tanks, the machine pads and the pump pushes the water out of the openings where seals are.
Does anyone have an idea to clean with lemon or vinegar based emulsions?
Harm that the seals or copper is obstructed, the lemon seeds harm?
Greuss and thanks beforehand.
Tali

Bosch TCA 5401 benvenuto classicHal,
so I found the blockage!
Bosch TCA5401 Bienvenuto classic.
This might also be interesting for other machines.

In the Brueh group at the upper piston, behind the sieve.
In the opening next to the screw of the sieve (inlet) was a kind of coffee powder propf which should not be there and belonged. Because that's why the screen!
The opening was clogged!
I had completely overlooked this when I first cleaned the screen.
Now it's running again!
Maybe the residues would have been dissolved during decalcification. Cleaned with the cleaning program I had already WITHOUT success before.
By the way, don't tighten the sieve too much, it will bend!
Does anyone still have a recommendation for silicone grease for lubricating?
I will order a seal set with silicone grease next time first, because I live in distant AUSLAND...
Greuss
Sven

Hallo,

I use as silicone grease only Paraliq GTE 703.

greeting
BS

--------------------
Ich schaue hier nur noch ganz selten vorbei.
In verschiedenen anderen Foren bin ich mit
dem gleichen Nickname zu finden, falls mal
jemand Hilfe benötigt kann ich vielleicht dort
helfen.

Short addition, I have to remove the plug every 2 weeks.
Two possible sources of error.
1) insufficient pressure in the system(here probably drainagenventil or sealing problem.
2) Experiment with the Kaaffee...(degree of grinding, grade here is the oil content) probably to be noted.
Then I will experiment again.
By the way, I had a law before that ran for years without a mux!
The Bosch held a year without problems (on average 3-4 coffees a day so at most something about purchases)
Greuss
Sven

P.See next machine will be again a Jura!

sorry
so at most a little over 1000 references
Sven

Hallöchen,

As I have a similar problem with my recently purchased B20, I'll let you know here.

Coffee is ground - pressure is built up - after about 3-4 seconds the machine stops brewing and "empties itself via the drainage valve".

Has anyone of you already solved the problem? If it's DV or maybe a blockage behind the sieve?

As I haven't got the right tool to open yet I couldn't get deeper into the material...
Can tell jmd which torx size I need to open?

Thank you + Greetings
Daniel

Hi people,

have also had a problem with my B20. There was also no water on the coffee, the pomace was dry and the water went into the drip tray. Now that I have installed a new training eventiel, Se no longer pumps water. You can hear the pump working but it no longer sucks in water. The machine was now about a week screwed on and it could be that I first have to fill somehow water into the pump otherwise it runs dry??
Tschau floian

Hello first of all,

I had the same problem and after instructions removed the brewing head and completely cleaned, then cleaned all hoses and the sieve, reassembled and........
it works again.
For now at least.
now run through the cleaning mode.
I must say here that my steamer and water for tea worked, so I assume something was clogged.

I keep you informed img src='/forums/html/emoticons/wink.gif' style='vertical-align:middle' alt='wink.gif' />