The capacity of the protection switch is too small. The capacity of protective switch of Guangzhou-Shenzhen ice cream machine is too small, which leads to fault code al. When this prompt message appears, turn off the machine, tighten the sensor screw or replace the sensor with a new one. Guangshen Electric Appliance is a national academician workstation enterprise. The company passed the national first-class energy-saving certification, and the products of ice cream machine, ice maker and kitchen refrigerator passed the national refrigeration product production license respectively.