Product review (5 stars): If at first you don't succeed...
I had read online that corrosion on cable connectors is a common problem for electronics in the laundry room.  I had to install this control board (and uninstall it) 4 times before it started working, so my cables may have had some corrosion on them.  Of course that's a problem with my cables and not with this control board.  It's been going strong now for several months.