Check the drain hose out for kinks or clogs. Then check the little drain hose that comes out the front to drain out the water and then check the filter that is in front next to that hose.
Took out the motor thinking it might be clogged up before the filter, but it looked pretty alright - I guess it just died. It is more than 10 years old, and the previous week's complete blockage might have tired it out.
Replaced the motor and ran a rinse and spin - success! - and then ran a tub clean - success! I guess its all fixed? Early days, but seems promising.
You'll need:
* a couple of screwdrivers (I used a shorty Phillips for some screws that were especially tight and I was worried about stripping out the heads, a longer one for where I couldn't reach with the shorty, and for the motor I actually found a flat-head easiest for getting the three slotted Phillips screws off)
* a needle nose pliers (for small hose clamps)
* a channel lock pliers (for big hose clamps)
* maybe a Sharpee (to mark the position of the wires)