Front loader wont spin

My washer does everything but spin. It agitates, drains, but just wont spin. When you put it in spin it sounds like it is trying to do something but nothing is happening. While in spin mode the drum can be turned freely by hand. Thanks for any help.

Use this service manual to do some troubleshooting. Focus on the speed control board

http://frigidaireservicetips.com/pdfs/491_AffinityWasherManual.pdf