Dishwasher was running normal cycle and just stopped. No lights on panel on inside top of door. Can not turn ON / OFF, no other buttons are functioning. I tried to , no results. I switched off circuit breaker for dishwasher, left it off for 1 minute and turned it back on - still nothing. No power, no lights, nothing. It's about 5 years old and gets fairly light use - maybe 2 runs / week. Any ideas?