The working conditions of the ice cream machine must be satisfied: whether it is installed in a stable place, whether the space around the machine is greater than 30 cm, well ventilated, and not working in direct sunlight. If these conditions are met and the noise is still very large, you can check from these aspects. 1) Check if the setting hardness of the ice cream machine is large? If yes, adjust the setting gear. 2) Check if the material tank of ice cream machine is short of material? If yes, add slurry in time. 3) Check whether the reducer of ice cream machine lacks oil? If yes, add oil or replace the reducer.