Turn off the ceiling fan if the blades are spinning. Never change bulbs with the fan in motion. Wait for the fan to come to a complete stop before moving on.
Grip the bronze bezel at the very bottom of the ceiling fan. The bezel fits around the cover.
Turn the bezel counterclockwise to unthread it from the ceiling fan housing. Continue this until the bezel and light cover come off the fan housing. This exposes the bulbs.
Unplug the current 100-watt bi-pin light bulb from its electrical socket. Plug the replacement 100-watt bi-pin light bulb into the electrical socket.
Place the bezel against the bottom of the ceiling fan housing and turn it clockwise to thread the bezel onto the housing.