Product review (5 stars): Somewhat pricey, but a lot cheaper than the Maytag Repair Man!
Fixed my Frigidaire front loader.  The drum had stopped turning.  I narrowed the problem down to the door latch or the controller board.  Replaced the door switch first (Whirlpool Part Number 99001807: MOTOR- WAX -- $18), but that didn't solve it.  Next up was the controller board, and this was the solution!

Actually it was a very easy repair:
1. unplug the power cord
2,  disconnect the water supply hoses
3. unhook the discharge hose from the sink
4. pull washer away from the wall so that you can access the back panel
5. remove the back panel, the controller is mounted on the lower left side of the cabinet as you see it from the back
6. disconnect the wire harnesses from the controller and remove it
7. install the replacement controller and reconnect the wire harnesses
8. plug it in and test it by setting it on a spin cycle
9. put it all back together and hook up the water supply hoses and discharge hose
10. wash your clothes!