The code the unit is flashing is "Door sensors mis-aligned." The symptoms you describe are the same. Each of the door sensors has a small light that must be lit to operate properly. When they are aligned both lights will be on. Tweak them until they are aligned.

Thanks for the reply Don. I checked the sensors and both green lights are on but I thought I would readjust them anyway. When I move them the lights go out so I put them back to where both lights are lit and tried it again. Same thing. Frustrating! I may have to call the hands on experts in or dismantle it, put it in the driveway, run over it and go to Sears again. Unless you have something else I can try.

You've done what I would have done. Don't run over that thing there are some good spare parts you can save.