This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.
The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.
The problem is on the controller assembly, which I regularly repair. Details are here
I also have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
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