Housing maintenance fund can be used in the following circumstances:

1. Housing maintenance fund, which is used for major and medium-sized repairs and renovation projects of main structures, public parts and public facilities and equipment after the warranty period expires;

2. The main load-bearing structures of the house include foundation, internal and external load-bearing walls, columns, beams, floors and roofs. Public parts refer to outdoor walls, hallways, stairwells, corridors, etc. Public facilities and equipment refer to water supply and drainage pipelines and equipment, distribution cables and equipment, elevators, public lighting, fire-fighting facilities, green spaces, roads, ditches, non-operating parking garages, public cultural and sports facilities and other facilities and equipment owned and used by the owner. The maintenance fund is managed by the Housing Authority, and the application process is complicated.