Presumably the float micro and anti flood micro switches are working OK and the pressure chamber and transfer pipe are clear? Have you checked the PCB for surface component damage?
cornflakes wrote:Not in bosch recall models have checked with bosch
How very odd because on the Bosch Repairaction web site it IS one of those recall models. See HERE
And if it hasn’t got a blue sticker on the outer door panel I suggest your customer contact Bosch to get that PCB changed. The fault sounds as though that could well be the problem.