Always make sure the company you’re calling is “Factory Service” authorized by the manufacturer to work on their products. Although some companies have “Factory Service” inheir advertising, customers need to confirm this when calling a company. Why? The company will come to your home and then determine your appliance is under warranty and tell you to call an authorized repair company. However, you will need to pay their diagnostic fee and service call. If your appliance is under warranty, call a company that is authorized.