Report "My Kenmore 16533 dishwasher all of sudden started running really loud on the wash cycle. I stopped the cycle, drained the unit, and looked for something obstructing--found nothing. Started it up, and the problem persists. The dishes do come out clean, however. The dishwasher is 6 yrs old. Is this a problem I could fix, or do I need a repairman? Is it worth the expense of a repairman, or is it time for a new unit?"