There are several reasons why a dishwasher might not power on, some of which include:

1. No power: Check if the dishwasher is properly plugged in and the circuit breaker or fuse box has not tripped.

2. Bad control board: The control board is responsible for controlling all the dishwasher's functions. If it is not working, the dishwasher will not start.

3. Bad door switch: The door switch prevents the dishwasher from starting when the door is open. If the switch is broken, the dishwasher will not start.

4. Bad touchpad: The touchpad is what you press to start the dishwasher. If it is not working, the dishwasher will not start.

5. Other electrical issue: If none of the above resolve the issue, there may be a larger electrical issue that requires a professional to diagnose and repair. Please schedule Appliance Force and we'll be able to assist in solving your issue.

It would be best to troubleshoot these issues one by one to determine the root cause of the problem.