Thanks Dave
i actually swapped over that little coloured flow regulator in the aquastop behind the filter basket before seeing your reply
and had read someone with same miele old aquastop of 4.1L/min and got a 2.5L/min and it was giving Fault F13 and he swapped the flow regularors over and it solved the F13 fault, and i could clearly see the diference in hole diameter between the 2.5L/min (4 smaller holes) and the 4.1L/min(4 larger holes) and its on its test run now and so far so good
thanks for the quick reply