My oven light burned out. When I try to turn the new light bulb in my Kenmore oven it's like sandpaper against sandpaper. Why is this?
The socket is probably corroded or has debris in it, using oven cleaner sprays is very hard on that socket because it is not coated with porcelain enamel like the rest of the oven. It is bare metal, usually aluminum. Cleaning it can be tricky but if you endeavor to do it, unplug the oven first or turn off the circuit breaker if the oven is hardwired and wipe it with a damp (not wet) sponge or cloth and let it dry thoroughly before plugging the oven back in. Then you can spray a spritz of cooking spray on a paper towel and wipe it onto the bulb threads (not the button on the end though) before screwing it in. If it were not an oven you could use a little rub of bar soap on the bulb threads, but that will impart a flavor to your food in this case.