Housing maintenance fund, also known as "public maintenance fund" or "special maintenance fund for houses", refers to the funds that the owners of residential properties pay a certain amount of money to a special account for the maintenance of public parts and facilities and equipment in the property area, and authorize the property service enterprises or other management units to use them. In layman's terms, it is the "pension" of the house. With the age of the house, there are various problems in the house. At this time, the public maintenance fund can be used for maintenance.

So the housing maintenance fund includes the elevator maintenance fund.