The display E L needs to be turned off and restarted. If it can't be ruled out, you should find professional technicians to repair it. The definition of food delivery elevator refers to elevators used by hotels, kitchens, canteens, restaurants, kindergartens, shopping malls, factories and other departments to transport food, tableware and daily necessities. Generally speaking, vegetable elevators can be divided into floor-standing and window-type, which can provide fast, convenient and economical transportation of small goods and greatly save time and human resources for users. Users can choose different sizes of cars according to their own needs. Users can send carts or dining cars directly into the car. The vegetable elevator is laid flat at a certain height from the ground to form a working platform, which is flush with the waist of the operator. It is suitable for users to transport articles with small volume and light weight, and the form is flexible, which can be used in many occasions.