Hello all,
After turning on the GS3 this morning the display slowly disappeared. After switching the machine off for a while and turning it on again, everything seemed normal. When I wanted to rinse water through the brew head the machine switched off after a few seconds. I have tried to turn it on a few times, but every time when I want to rinse water through the brew head the machine switches off. The tea water runs normal. Does anyone have a clue what is wrong?
Best,
Kees

Hey Kees,

Unfortunately, the most likely cause is water contamination of your logic board.

Read this for more info on the cause and solution:
La Marzocco GS/3 logic board water contamination