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Replace the old mounting bracket with the new one provided with the ceiling fan. Use the existing screws from the ceiling electrical box to secure the new black mounting bracket flush against the ceiling. This new bracket has cushioning to help reduce fan vibration. Additionally, if the ceiling box is fan-rated and secured to a ceiling joist, install extra screws (often provided with the fan) directly into the ceiling joist through available holes in the mounting bracket. This provides maximum stability and safety, preventing the fan from falling.