Hello Bunnyhop. 🙂 Yes, I have one of those and, yes, the engineer has been called out and, yes, he’ll need to come out again. 🙁
Presumably you’ve checked the little water catcher inside at the back isn’t full? Also the back of the unit can collect dust so worth using an old toothbrush on it.
I’ve said it on here before but Miele do not make products like they used to. My old dishwasher and washing machine that went to the ex are still going strong at 15 years old yet my new washing machine and fridge/freezer have both needed the engineer to come out. Their quality has dropped and I wouldn’t buy again.
Do hope you get it sorted out though, it’s a real nuisance when these appliances go wrong.