How can I fix my Kenmore Ultra Wash dishwasher?

My dishwasher started leaking when it was draining a few months ago, so instead of trying to fix it, I didn't use it for a while. Now, Drain is the only function that will work. If I start it on any of the functions (Pots and Pans or Witer Miser, ect., nothing happens except the lights come on and the digital showing of the number of minutes will count down. Any suggesstions? The model number is 665, the serial number is FK3311118, the stock number is 15869 if any of that helps...Thanks!!