Rate Casablanca Ceiling Fans - Guess what? The name of the informative article is simply out and out misleading. The only actual "minus" in regards to some ceiling fan is what it will take to get one properly installed. Ceiling fans might be difficult to install for the inexperienced do-it-yourselfer. Sometimes, you will need to run an electrical line to the area where the ceiling fan is to be set up. Hiring a capable, bonded and licensed electrician will most likely save you a lot of grief in the long run unless you're skillful at achieving this type of thing.
There is also the minor "minus" that involves the problem of regular maintenance. Properly installed, a ceiling fan will provide many, many years of nice cooling and cost-savings in your heating bill (assuming there is a fan that enables you to reverse the blade direction).
On occasion, ceiling fans need small adjustments and get out of balance. Ensure that every one of the screws are tight, without going into great detail. If they truly aren't tightening the ones that have come loose and run the fan. Your issue was solved, if the wobbling has stopped.
If not, make use of a yardstick or other straight bit of wood and put it (together with the fan stopped) vertically at the outer edge of among the blades. Rotate the blades by hand to make sure that each blade touches the stick.