Electric water heaters have two heating elements, a lower and an upper element. These metal heating elements are made of metal and get hot from electrical resistance, similar to what you would find in an electric cooking range.
But do you know which one usually goes bad first? Or how to test, repair and replace a heating element? Or the difference between a screw-in or flange type heating element? In the tutorial Electric Water Heater Troubleshooting I'll explain all that and how to troubleshoot an electric water heater, test a heating element, and how to remove and replace a faulty heating element.