Bosch want £109 to send an engineer to look at it. It’s 5 yrs old so nothing under warranty.
Local reputable engineer suggested this error usually means main part blown and in his opinion not to repair as expensive and can be troublesome.
Does anyone have any experience of this error message please?
I turned it off at the mains and back on again so now it’s all in German but I’m pretty sure “Keine kommunikation” means the same thing 