What is a common cause of elevator door misalignment?

A common cause of elevator door misalignment is the shifting of the elevator shaft or improper installation. Elevator systems are complex and often rely on precise measurements and installations. If the elevator shaft shifts due to settling of the building structure, thermal expansion, or other reasons, the doors may no longer align properly with the door frame or the door opening.

Additionally, if the doors or their components are not installed correctly, it can lead to misalignment issues. This can occur if the brackets, guide rails, or other mounting hardware are not secured in the correct position during installation. Such misalignment can prevent elevators from opening and closing smoothly, leading to operational issues and safety concerns.

Overall, ensuring that the installation is done accurately and taking into account potential shifts in the elevator shaft are essential for preventing misalignment of the elevator doors.