I start the dishwasher off on a cycle as normal, and it sounds quite loud but is apparently working. After 2-3 minutes, it seems to stop working, and just makes this buzzing sound, or a sound like a pan sizzling. At this point, some or even all of the lights on the front start flashing and nothing further happens. None of the flashing lights seem to correspond to anything in the trouble shooting section of the manual. The dishwasher will power down via the on-off button. Switching it back on and pressing the start button just produces the same result. I've also cleaned and checked the holes on the rotating spray /washer heads, and checked the water supply.