Step 3 · Remove Existing Fixture and Inspect Ceiling Box
Carefully remove the canopy of the existing light fixture by unscrewing it from the ceiling. Disconnect the wires, noting how they were connected. Remove the mounting screws holding the fixture bracket to the ceiling electrical box. Inspect the electrical box. It must be rated for ceiling fan support. If it is not, or if it is loose, it must be replaced with a fan-rated electrical box securely mounted to a ceiling joist or a fan brace.