self-cleaning function of the oven. When the thermostat of the electric oven is turned on, the red light will change to 4 degrees, which is the self-cleaning function of the oven. It can instantly heat the heating tube of the oven liner to 4 or 5 degrees, and use the high temperature to peel off the substances that are not easy to clean on the wall of the oven liner. This process is self-cleaning. Electric oven is a kitchen appliance that uses radiant heat from electric heating elements to bake food.