Krups EA8150 clogged - cannot descale

Hello,

For some time now, my Krups EA8150 unit seems to be clogged. Nothing comes out of the nozzles anymore: no coffee when I want to brew coffee and no water when I run the cleaning cycle. In both cases, only brown water ends up in the drip tray.

I have tried following options to solve this:

- cleaning out pipes with tweezers => didn't work
- started cleaning cycle => didn't work, as no water comes out of the pipes
- descaling cycle => couldn't start up, as the descaling icon doesn't appear in my maintenance menu
- swept out the top element (where the cleaning tablet goes) to find the blockage => nothing found

Does anyone have the same problem? And if so, are there any solutions? From Krups itself I only get a standard email about the warranty period.

Thanks in advance for the help.