Had the same F02 code just before Thanksgiving. The wash tub was full of water. After reading how much water had dumped out on others, I disconnected power, shut off water supply and removed kick plate. With access to the drain pump, I disconnected the power wire, and removed the rubber gromets that hold the pump to the frame. This allowed enough room to lift the pump and place a small bucket under it (at an angle of course). Releasing the clean out a little at a time, empty the bucket and repeat until the wash tub is drained. I cleaned out the drain, impeller etc. I put everything back together and it worked for one cycle. The pump began making an aweful noise and the wash tub was agin full of water. I was now getting the SUD code. I knew the pump was gone but I got 10 years out of it. (not bad Kenmore/Whirlpool) I purchased a new pump ($158.00 part # 280187) and repeated my drain technique with just about no water spill. Carefull though, there is water in the pump. After removing the hoses I stuffed with a paper towel. In 15 minutes the new pump was installed (install hoses, clamps power wire, slid rubber gromets to frame and screw in front. Easy fix and no $80 service call and $250.00 part fee. The machine works like new.
Tom in Massachusetts, November 2012