What is the reason why the elevator is "sick" after only a few years of use?

Owners often complain that the elevator is inconvenient to stop soon after it is used. As far as we know, the state has no clear regulations on the retirement age of elevators. The elevators in some communities in our country often break down after only four or five years, and they are "terminally ill". What causes them to "premature senility"? 1, the passenger elevator becomes heavy and difficult to digest; 2. Saving use will aggravate "aging"; 3, broken, no money to repair, money can not be repaired in time. 4, maintenance is not in place, is another important factor of elevator "premature aging". Frequent elevator failures, is it the "life limit"? According to the current laws and regulations, elevators have no retirement age. As long as it passes the safety supervision and inspection of special equipment, it can be operated as usual. Professionals in the industry believe that although the elevator has no retirement life, its service life is closely related to the early installation, residents' use and later maintenance of the elevator.