Dishwasher won’t run at all – Check the circuit breakers to make sure none are tripped.  Ensure that you have water pressure in the sink.  Check that the dishwasher didn’t come unplugged.  This is usually under the sink.

Bad Smells emanating from the dishwasher – The drain area needs to be cleaned occasionally. Check the owners manual to see how to remove and clean the filter if there is a removable one.  ***** At the bottom of the door on the inside edge there is a pleated rubber gasket.  This gasket is the primary source of unpleasant smells from the dishwasher. Get under there and clean out the scum, and you will probably solve your problem. It is a dirty job.  *****