- He stays in it and is absolutely healthy,
- He is a guest visiting someone staying there,
- He is differently abled either from birth or due to some injury or
- He is currently indisposed for a short period of time due to an accident or sickness.
- Efficiency: It helps in the quick transportation of a number of people at the same time to different storeys of a building. This not only helps them save time but the energy which would otherwise be spent in climbing stairs is also saved. This energy conserved will help people to do their jobs better thereby making them efficient and punctual.
- Space saving: While stairs are pretty cumbersome and take up a lot of space, the installation of the elevator just needs the presence of a shaft. This saves up valuable space which can be utilized for other purposes. The installation of an elevator also makes the building interior look crisp and clean.
- Safety: A rush of people hurrying up and down the stairs is a sure recipe for disaster. But elevators are able to transport a number of people at the same time in between floors thereby preventing any tragedy from taking place. Thus elevators are a safer option than stairs.
- Change in speed: Elevators which are not able to pull through properly and are in need of urgent repairs tend to show a perceptible slowdown of speed. Thus the wait time as well as the travelling time becomes longer thereby giving rise to dissatisfaction and irritation among its users. This slowdown of speed is primarily due to the frictional resistance which it faces due to the malfunctioning of its parts.
- Mid-Levelling: Elevators in need of repair also have a tendency to stop either a few inches above or below the floor level. This mid-leveling occurs due to the wearing away of the brakes and is a very serious problem which needs to be taken care of immediately to prevent any disaster from taking place.
- Frequent break-down: Frequent breakdown or problems cropping up frequently regarding the day to day functioning of the elevator is also an indication that the elevator needs to be repaired thoroughly. Hence this too should be taken seriously so that the required repair work can be carried out and the frequent hassle of breakdown can be taken care of.
- Strange noises: An elevator in good working condition is almost soundless. In fact the only sounds that are heard come from the recorded messages saved within the elevator to inform the passengers about the floor number. But sometimes abnormal sounds can be heard when the elevator is in action. This is a clear indication that something is definitely wrong with the elevator and it needs the expertise of the lift mechanic immediately.
- Jerky movements: When the elevator starts to move up and down with jerky movements, it means that something is technically wrong with the elevator. Thus calling a mechanic and getting it checked should be a priority since it can hamper the safety of the passengers going up or down using the elevator.