The reason it restarts is because you are re-setting the fault by switching off the power. I am not familiar with this particular make and model, so unfortunately cannot tell you what the fault is. A search of their website might help, if they have the fault codes publicly available. Are you sure you have the correct model, as I searched the site at http://www.whirlpool.com/custserv/index.jsp and came up with nothing.
Paul higgins, July 2005