Appliance technicians maintain and repair appliances for clients. The specific job duties of these specialized technicians depend on the type of equipment they repair. You can specialize in one kind of machine, such as dishwashers, washing machines, or refrigerators, or focus on products from one or two manufacturers. Many appliance technicians travel to homes and work on their kitchen and other major appliances, while some work on commercial equipment or industrial refrigeration units. In this role, you discuss the problems your client is having with the appliance, diagnose the issue, then fix or repair the unit. If you have appropriate certification, you can maintain, test, and repair medical or industrial appliances.