Samsung dishwasher DW80F600UTS...No Power nor touchpad response until.....

I unplug it for a handful of hours or so. The dishwasher is just under 2 yrs old...just died the other night showing no signs of life. I confirmed power going in..then unplugged it overnight. Next morning plugged it back in and worked like a charm...ran full cycle. got home that night...dead again. Unplugged for a handful of hours...and boom...back to life. Plugged it back in last night...this morning dead again. Can someone point me in the right direction? Need replace main control board?