To start, unplug the power and remove the damaged parts. You may need to wrap some areas in electrical tape to do this repair safely. Disconnect the wires and remove the bottom element by removing the screws. Replace the heating element by screwing it into the back of the oven, plug the oven in, and test it to see if it works. For safe oven repair jobs, it’s best to request an oven repairer here on Airtasker.