I have been to this dishwasher today which continually fills until it reaches the saftey switch, it then pumps out for a couple of seconds until the water level falls and then starts to fill again, it will continually do this, i suspect the impellor jug on the inlet pipe, but when i looked on bosch parts it shows that there is 2 impellor jugs both with the same part number, so can someone advise if this is the fault and if there is 1 or 2 jugs on this machine as i can only see the one on the inlet pipe. thanks andy