Common problems with building hoists include mechanical failures, electrical issues, overloading, and safety malfunctions. Mechanical failures can be fixed by regular maintenance, lubrication, and replacement of worn parts. Electrical problems may require checking wiring, connections, and replacing faulty components. Overloading can be prevented by strictly adhering to the hoist's weight limit and using load indicators. Safety malfunctions, such as brake failure, require immediate attention and may involve replacing brake pads or overhauling the braking system. Always ensure that hoists are used according to the manufacturer's guidelines and are regularly inspected by qualified personnel to prevent accidents and ensure safe operation.