The maintenance of elevators are often outsourced to third parties.
However, the third parties are not able to perform daily inpsection nor do they acknowledge the normal functions or performance all the time.
Therefore, maintenance businesses require active interest from managers or operators for the right maintenance.

Minor faults are normally ignored during the maintenance inspection unless they cause trouble in daily operation but this indifference might lead to further fault or accidents. Therefore, minor faults written on the checklist shall not be excluded from inspection checklist even though there is a time limit during periodic maintenance.

In the event of any fault of an elevator, you should identify the root cause and take measures.
It often gets solved by simply resetting the control panel but it will occur more frequently leading to fatal damage once it is repeatedly ignored without resolving the root cause.
Reactiving through resetting to a repetitive fault is not considered as proper measures.
Therefore, repetitive fault requires proper technologies to identify the root cause and resolve it as well as time and efforts.

Please define the scope of business guaranteed by the businesses in the contract.
Document the non-operating hours, performance level, details of failure, etc.
Once you notify the maintenance team to report the failure, document the contact time, arrival time of the A/S staff, and the time of completion of repair.
This can be used for periodic statistics regarding non-operating hours of elevators.
※ Non-operating hours refer to the period when the elevators are not available during inspection due to failure, and shall be managed based on monthly average time.
The aim of managing elevators is to minimize the risks of accidents and discomfort of clients through efficient operation of elevators so reducing the non-operating time of elevators could be a scale to measure the capacity of maintenance businesses.

Some put costs as priority when contracting with maintenance businesses.
When you select a maintenance business that lacks of technical skills but provides cheap services, the lifecycle of high-priced elevators might be significantly decreased compared to optimally maintained elevators and ultimately cause the damage to users’ safety.
Especially, the owners shall be attentive to maintenance businesses as they are the users.
Each elevator consists of approximately 20,000 complex and delicate parts with a range of technologies converged that are designed to move non-specific people so proper maintenance to guarantee the users’ safety has a significant meaning more than just cost-related aspect. Therefore, the users should always be aware of which maintenance business the managers or owners of the elevators are contracted with and the level of technical skills and performance of maintenance business.

Even with the thorough and proper maintenance, the failure rate is significantly increased after 15-20 years of use and the inspection time gets longer that the maintenance costs increase while the users get dissatisfied and their safety is threatened.
In this situation, the owner should request comprehensive diagnosis to an elevator professional institute and seriously consider the repair construction of elevator.