Dishwasher "start" button won't start. Cycle lights won't come on, but "options" light will light, but go out after about 5-10 seconds. Start and Cancel buttons won't light at all. Dishwasher worked fine a couple of days ago. Any idea why it has stopped working? Checked latch, and micro switches on latch mechanism, and ohms read ok. Seems like one of the resistors on the board is making a "hissing" sound when start button is pushed.