Product review (4 stars): Whirlpool Duet Replacement
After our Whirlpool Duet went for a wild ride in the laundry room the door popped open while it was in cycle.  We were unable to reset the door latch in the locked position.  We tried everything and looked online for help.  Don't bother trying to fix it.  Just get a new one.  It's very easy to take the old one out and install the new one.  A word of advice ... front loaders like the Duet gradually loose their stability.  Try not to overload your wash with things like jeans and towels.  Anything that soaks up water.  And most important ... never leave the house while doing wash!