To solve the problem that the cause is unknown or it takes time to identify the cause in an elevator having no waterproof or waterdrop proof measures at an elevator landing equipment, particularly, when components in the elevator landing equipment receive water to cause a failure, moisture is evaporated before the failed elevator landing equipment is inspected.

A water exposure discrimination sheet is attached to a path where water outside an elevator landing equipment may enter the elevator landing equipment, or attached beforehand to the vicinity of an electronic component such as a printed circuit board or a button switch in the elevator landing equipment to be used for finding a cause at the time of an elevator landing equipment failure.