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 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 does not fix the problem, you might need to replace the electronic control board as well.
If the oven doesn't automatically lock when you start the self-clean cycle, or it it doesn't unlock after cooling to room temperature after a self-clean cycle, it's likely the oven door lock assembly has failed and needs to be replaced. Also replace it if the child lock-out doesn't work on an oven equipped with that feature.
If a range oven door no longer locks or if the door won't unlock, the door lock motor might be to blame. This DIY repair guide and video show how to replace a range oven door lock assembly in less than 30 minutes.
The electronic oven control (EOC) board governs the timing and execution of oven functions such as baking and broiling. It's usually in the control console and often has a digital clock on the front of its housing. Replace the electronic control board if it doesn't light up when it's supplied with electrical power, if it doesn't operate properly or doesn't properly send voltage to the bake or broil element (in an electric oven) or burner (in a gas oven).
If the control panel on a gas range is blank or the oven won't heat, it could be a faulty oven control board. This repair guide and video show how to replace the range oven control board in 30 minutes or less.
If the range control panel is blank, the oven control board could be the problem—the oven might not heat either. This DIY repair guide and video show how to replace the range oven control board easily, in 30 minutes or less.