My LG LDE4413ST double oven range just died on me. I was running the lower oven's self-clean cycle, and about 45 minutes in, it just completely shut down. The display is blank, no lights, nothing. It's getting power to the outlet and the breaker is fine. I've read a bunch of threads about the control board failing on these after the self-clean cycle. Could this be the problem or what else should I be checking? Thanks in advance!