Dishwasher won't start

I have a Maytag Jetclean dishwasher that is nine years old. It has worked fine, but today it won't turn on. None of the lights on the front panel activate. I checked my circuit breakers and none are tripped. The Control Lock feature doesn't appear to be activated because the Lock light isn't lit. The door seems to be completely closed.

I'm not sure what's going on here. Any suggestions will be appreciated.