I have the same machine and problem, what i did was remove the top cap (If u look closely at the top cap, ul see a tiny slot that a medium sized flathead screwdriver can fit into, hence, pry top cap open).
Once cap is open, spin the agitator (the piece that spins the water that u help along to get it to work properly) While looking down into the center of the agitator. About an inche down ul see teeth on the outer wall, spin the agitator (by hand) back and forth and ul see 4 plastic stops pop out against the teeth on the outer wall (If u look closely, ul see that those stops are worn down, they dont catch the teeth anymore) What i did was very gently and gingerly screwed a 1" drywall screw straight down thruogh the stop (If u look real close at the 4 lil stops, ul see they have a lil hole in each of them, I screwed it in about an 1/8-1/4 inch. I only used 1 screw cause i figure A. when that 1 breaks I have 3 more and B.This is the experimental stage, i want to keep the problems to a minimum if and when it fails.
Please keep in mind that this was a spur of the moment fix, u could say out desperation, sort of. Im not an appliance repair man, I repair motorcycles on the side, amongst other things. This is what worked for me. The real fix is to buy a new one.
Chris, NYC
August 2005