Gresham: I don't know if that's the controller, I honestly don't know terribly much about the guts of the system.
Ian: Meh.. they told me to tell them what's plugged into the PC4, etc... "push down on the pads to make sure nothing is sticking too much.." and they're working on a possible fix. It worked perfectly fine from the early firmwares, but now, I try to do something and it goes crazy like I pushed the button a thousand times and it's registering all the button pushes one at a time. All my previous settings are there, it's just that I can't access anything now. So I got a really expensive light timer that shows temperature and pH right now.
At this point, I'd honestly return this thing if I could get my money back (think I'm past the 30 day return though) or I'd sell it if I didn't feel uncomfortable about selling someone a buggy controller.