We have an integrated Bosch aquastar 6.5L with E15 error message and a tap ?

E15 fault code is water in the base of the machine where the workings are. Tap is the module has not received any pulses from the water flow meter (called the impeller jug). However you appear to have water entering so I would say the impeller jug is faulty causing an overfill. Also common fault on Bosch is a blockage in the clear corrugated hose that runs from the pressure switch left hand side to the sump center at front. Cheers

Kenjo
May 2014