While in bake mode the oven will overheat and then the door will lock as if in clean mode and wait for cool down. Usually shutting off the power and waiting will clear enough to unlock upon power up. This is intermittent and may happen only every ten uses of the oven. Would think it was a failing sensor but once thought the broiler was on as if in cleaning mode so I. Wonder about the control board? Other times just oven. Calibrated to run ten degrees lower and hasn't happened in the last four uses bit don't want to push it with Thanksgiving coming up. Please advise, thanks.