6 things to look out for in an elevator

6 things to look out for in an elevator
1, the elevator door switch is smooth, whether the abnormal sound.
2. Whether the elevator starts, runs and stops normally.
3. Whether each button of the elevator works normally.
4, the lights in the elevator, floor display, floor display outside the elevator and other devices are normal.
5, emergency devices are normal, such as walkie-talkies, emergency buttons, exhaust fans and monitors.
6. When the elevator stops, whether it is level with the ground of each floor.