If the door won't open when the oven cools down after self-cleaning, or when you try to disable child lock mode or control lock mode, the problem could be with the oven door lock assembly or the electronic control board. First, shut off power to the oven for 2 minutes and then restore power to reboot the control board. Try disabling the control lock or set and then cancel a self-clean cycle to unlock the oven.
If the oven door won't unlock, shut off power and then check the wiring between the electronic control board and the oven door lock assembly. If the wiring is okay, replace the oven door lock assembly. If that doesn't fix the problem, you might need to replace the electronic control board as well.