AJ, erratic problem. If you start burners with downdraft running, will run ok. Start oven, working still. Shut off, Restart burners then you get an FC code. If you shut off the breaker, then turn back on it may be ok, or might get FC code again right away. It's Erratic. FC is a communications error. Tried checking all of the connections. Seemed OK. Don't know whether to try replacing boards, has several of them. Any ideas would be helpful.