Turn off power to the ceiling fan.
If fan blades are warped, the ceiling fan should be repaired or replaced.
Verify that all blades are the same height from the ceiling. If blades are not near the same height, take all blade holders off and compare them. Carefully bend the blade holders back into shape and reinstall. Be careful not to break them!
Run ceiling fan to check if the wobble has stopped.
Home Preparation Instructions