Dishwasher isn't working. Came home one day and it was running, pressed cancelled to stop the load and the dishwasher hasn't worked correctly since then. Now none of the lights are lit and only cancel seems to make the dishwasher do anything. We have only had this dishwasher for 3-4 years and I can't locate the user manual. Is there a reset or something I can do to get my dishwasher working? Thanks