Cathedral Ceiling Fan Box - Do you know what? The title of the informative article is only out and out misleading. The only real "minus" when it comes to some ceiling fan is what it will take to get one properly installed. Ceiling fans may be difficult to install for the inexperienced do it yourselfer. In some cases, where the ceiling fan would be to be installed you'll need to run an electrical line to the region. Unless you're adept at achieving this sort of thing, hiring a competent, bonded and licensed electrician will probably save you much grief in the long run.
There's also the minor "minus" that involves the problem of periodic maintenance. Properly installed, a ceiling fan will provide years and years of nice cooling and cost-savings in your heating bill (assuming you have a fan that allows one to reverse the blade direction). Allowed, you should wipe the blades down once in a while but then, everyone has household cleaning chores to take good care of of from time to time.
On occasion, ceiling fans need minor alterations and get out of equilibrium. The most often encountered offenders are loose screws that attach the blades to the motor housing, blades that are not at exactly the same angle (pitch) as the remaining blades and a blade or blades that weigh slightly more compared to the others. Be certain that all the screws are tight, without going into great detail. Whenever they truly aren't tightening the ones that run the fan and have come loose. Your issue has been solved when the wobbling has ceased.
Otherwise, make use of a yardstick or other straight bit of wood and put it (with the fan stopped) vertically in the outer edge of among the blades. Rotate the blades by hand to make sure that every blade touches the stick. If one or more don't, only (and gently) bend the blade(s) so that their pitch matches the others and repeat the process until you're satisfied that each blade has the same pitch.