Ceiling Fan Air Flow Calculation - Guess what? The title of this article is merely out and out misleading. The sole actual "con" when it comes to a ceiling fan is what it takes to get one properly installed. Ceiling fans may be hard to install for the inexperienced do-it-yourselfer. In some instances, where the ceiling fan would be to be set up you will need to run an electrical line to the location. Hiring a capable, bonded and licensed electrician will probably save you much grief in the long run, unless you are adept at doing this kind of thing.
There's also the minor "con" that entails the problem of regular care. Correctly installed, a ceiling fan will give you many, many years of agreeable cooling and cost-savings on your heating bill (assuming you've got a fan which allows you to reverse the blade direction).
On occasion, ceiling fans require slight alterations and get out of equilibrium. The most frequent culprits are loose screws that attach the blades to the motor casing, blades which aren't at exactly the same angle (pitch) as the remaining blades and also a blade or blades that weigh slightly more in relation to the others. Without going into great detail, make sure that every one of the screws are tight. Whenever they're not tightening the ones that run the fan and have come loose. If the wobbling has quit, your issue was solved.
If not, utilize a yardstick or another straight piece of wood and place it (together with the fan quit) vertically in the outer edge of one of the blades. Rotate the blades by hand to ensure that the stick touches. Turn the fan on again and see if you've solved the problem.