Make sure the panel isn’t hot. If the oven is currently too hot for the electronics in the panel to operate, it will display Hot when you try to perform a function. When the oven is a little cooler, this may only happen when certain buttons are touched (like Self Clean) because the oven is still too hot to perform that particular function. The interior lamp will also not function during extreme heat conditions such as a Self Clean cycle, so its button may appear to do nothing in that situation as well.