Miele Dishwasher G2582SCVi F78 fault

I need a bit of help with this please. I cant find the fault codes for this model
Been to this dishwasher today with F78 fault code, I have an idea that it is down to the circulation pump not providing enough pressure to activate the high pressure switch (if it has one)
What I did notice was that the water fill valve kept coming on intermitantly after the machine had filled up causing I presume an overfill, is all this connected with an F78 fault.

I am having to return to this dishwasher after the stupid kitchen fitters come back and dismantle the cupboards, dont you just love em? so it would be good to have a bit of better knowledge of this models beforhand
Cheers Mal