Dosent operate at all has power to plug inside under lid

Dosent operate at all has power to plug inside under lid

Checked for power to connection under top cover has power . Not a peep out of any cycle worked fine yesterday . Control knob seems to operate properly tryed all cycles not a sound from anything? Machine must be at least 15 years old, replaced motor a couple of years ago because it was noisy. Anything come to mind besides bying a new one