Welcome to Just Answer.
Sorry to hear about your problem.
I would first verify that the breaker is on and look closely, because it is often hard to tell when a breaker is tripped. Then verify that you are getting power to the dishwasher; you can check this inside the junction box behind the front kick panel, under the dishwasher. If you are getting power to that point and the connections are good, then my next step would be to test any switches with a multimeter. If the door switch is defective, for example, the dishwasher will not run, thinking that the door is open.
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Thanks for asking your question at Just Answer.
Best of Luck, Brian
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