Have no experience with this. Hve never used or seen one. Probably could not recognize one as such, had it been sitting right next to me.
That said, check
http://www.doityourself.com/forum/pools ... tor-2.html - Might have some useful info for you.
Also, I would suggest checking the users manual. They should include a trouble shooting section. Even if the only offered solution is "replace board", the may offer some keywords in there that you could use to search the net for a workable solution.
It only makes sense that every component on the board would not fail all at the same time, so a less expensive solution is likely to exist.
Hope that helps.