I solved a problem with my Baumatic dishwasher BDW15. The machine made a zoom-ing sound a couple of minutes after startup and stopped. Its drainage pump was working, but the washing pump/motor was stuck. I removed the lower washing arm. And got the pump running by sticking a long thin metal stick into mounting structure of the lower arm. After that ran the machine for once without the lower arm to get some flow through the motor.
Now it runs perfect with the lower arm installed again.
Marc Persoon, March 2011