To replace a dishwasher heating element, gather tools like a multimeter, screwdrivers, and pliers. Identify the heating element’s components and understand the dishwasher’s heating system. Troubleshoot issues using the multimeter. Follow a step-by-step procedure: unplug, remove components, install the new element, and test. Prioritize electrical safety, and test continuity. Recognize common mistakes and solutions. If you encounter electrical difficulties, seek professional assistance.