Question about Bosch Benvenuto B30 Espresso/Coffee Maker

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Problem with Benvenuto B30 cleaning

The red "clean" button comes on but after we emptied thr tray and put the tablet in when prompted, the display stays on "empty trays" and the cleaning cycle does not start.

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  • Erissis Dec 21, 2007

    We switched it off, left it overnight and started the procedure again - it worked! Seems we did one thing out of step.

  • Anonymous Feb 09, 2009

    I have the same problem and the cause is not dirty contacts. I can clean the contacts 10 times and the machine still does not recover from a cleaning cycle. The machine simply gets gets stuck in a loop between "empty trays" and "trays missing" whenever a cleaning cycle is initiated or tries to complete.This is a design flaw and Bosch needs to admit it and take care of their customers.



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After I cleaned the tabs really well, I still had the same problem. So, I took the back off so I could get to the "switches" that close the feedback circuits for the "Trays Missing" and "Clean Trays" messages. Long story short, you DON'T need to take the back off. You can solve the problem if you remove the trays and carefully remove the right side metal tab. This will stop the false readings, at least it did for me. Save the tab if for some reason you need to it later.
To remove the right side tab, use something like an eye glass screwdriver or butter knife to pry it up and out of the two small holding tabs. Then rotate the metal tab up and away from the tray and it will fall right off. Pictures below. Problem with Benvenuto B30 cleaning - a9c5bc58-d1a4-488c-891c-2b50084d4d96.jpg 383c8eeb-4d14-467d-842b-ea47d989e30Problem with Benvenuto B30 cleaning - da367966-03c1-462d-961c-c5a9605fe4f4.jpg

Posted on Jul 01, 2014

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If you don't clean the contacts at the back of the tray it sometimes thinks the trays are still full. try giving the contacts a good scrub and put the trays back

Posted on Mar 27, 2008

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Don't forget to clean the receiving contacts in the back bowels of the tray receptacle (not the tray itself but this is where the tray contacts connect) as well every once in a while. I had the same problem. Took a long swab with alcohol and reached back in there to clean them. Didn't work. Took small nail file, taped it to a skewer and "sanded" the contacts to get corrosion/dirt off. Haven't had a recurrence in over a year!

I also got tired of the whole "empty tray" concept and blocked the vertical portion of the tray contacts to about 90% of their height with silicon gel (which hardens as it dries). Now the water doesn't touch them until it really IS full!

Posted on Sep 10, 2009

Make sure the contacts at the end of the tray are clean - especially between the 2 contacts. Dirt / water accumulates between the contacts and the machine "thinks" that the tray is full.

Posted on Oct 14, 2008

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Did you find a solution to this? Same thing happened to mine and even after emptying the tray it still says "empty trays"!

Posted on Dec 16, 2007

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Jan 14, 2016 | Coffee Makers & Espresso Machines

1 Answer

Bosch benvenuto b30 had for years and loved. Now when use beans the coffee/espresso is too watery and pucks are like sludge after. Works good when use preground coffee .

You have accidentally turned down the brew strength selector, on front of unit just above "clean" and "descale" buttons. Dial it the the maximum. Will grind longer, make more grounds, larger puck, stronger coffee. Or this dial is broken/ wire broken etc. u can disassemble per some other posts on here and check wire connections. I did all that then realized someone had just turned it down. So I turned it to maximum strength and problem fixed.

Oct 15, 2013 | Bosch Benvenuto B30 Espresso/Coffee Maker

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Water leaking into tray while coffee is brewing. tray needs emptying after 3 shots. now it is going through the cycle but no coffee is coming out. steam works fine

i had a problem similar to this one. The amount of water coming out through the nozzles was much less than it should have been and much of the water was ending up in the tray. I found the problem to be the drainage valve, there was a crack in it. I was able to order a new one - bosch part number 622540 from

attached is a picture of the whole unit and also a detail of the split.

I did try to repair with super glue but it does not stick to this veryhard plastic

cost including postage about 17 gbp

Jun 20, 2011 | Bosch Benvenuto B30 Espresso/Coffee Maker

1 Answer

Need cleaning tablets order # 31 0655

Call Bosch directly - they told me they have them.


Jan 02, 2011 | Bosch Benvenuto B30 Espresso/Coffee Maker

1 Answer

Trying to locate a store where to find cleaning tablets for Bosch Benvenuto B30

You did not state geographic area. The part number is 310575

You can order them on line here: (10 pack $12.95)

also here: ($12.90)

There is a Descaling Maintence Pack 311196 That I would recommend everyone with a good coffee maker should use:

This is only on line sources.
Thanks for choosing FixYa,

Dec 10, 2010 | Bosch Benvenuto B30 Espresso/Coffee Maker

1 Answer

I cleaned out the grinder part with rice but now the nozzels are bunged up, I've cleaned it with tablets about 6/8 times. What can I use to clean out the gunged in rice!

Howdy. I'm going to take one for the team on this one and tell you what I found out from Bosch. They say nothing is ever to be put in the coffee grinder area except coffee. They understand that while it is a popular home grinder tip to clean with rice, that does not include integrated coffee systems like the Benvenuto. Sadly, they went on to tell me that they had no suggestions at all for removing the residue from the workings of the machine. I had thought that eventually, over time, it might rinse away. am very sorry to deliver this news and hope someone somewhere has a better answer for you.
Best regards,

Aug 31, 2010 | Bosch Benvenuto B30 Espresso/Coffee Maker

1 Answer

Stuck in cleaning mode?

Open the preground coffee lid, drop a cleaning tablet in it, let it do it's tablet cleaning cycle. After cycle empty water out of tray and clean.

May 16, 2010 | Jura Capresso Impressa Z5 Espresso/Coffee...

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Empty trays message will not go away

The interior sensor is dirty. Turn off power, unplug unit, clean any contacts within the unit. Make sure the tray is also clean, particularly the metal leads at the back of the tray.

Feb 07, 2010 | Bosch Benvenuto B30 Espresso/Coffee Maker

1 Answer

Bosch Benvenuto B30

The cleaning program is different from the descaling program.
The machine is now wanting you to descale the machine. Get some descaling powder or tablets, desolve in water and let the machine run through the descale program.

May 31, 2008 | Bosch Benvenuto B30 Espresso/Coffee Maker

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