How do I troubleshoot and replace faulty oven coils?

To troubleshoot and replace faulty oven coils, first, turn off the power to the oven. Then, locate the coils and check for any visible signs of damage or wear. If the coils are faulty, you can replace them by disconnecting the old coils and installing new ones following the manufacturer's instructions. Be sure to test the oven after replacing the coils to ensure they are working properly.