Ceiling Fan / April 24, 2018 / Glenna Gillespie
So, after a few years, you may begin to notice the motor housing beginning to show signs of wear with vibrating and other noise being the telltale signs. There's nothing you can do to fix these problems besides investing in another fan (throwing good money after bad). Also, cheaper fans often have blades that are made of inferior material which may begin to warp or go out of balance. While you can do a temporary fix for this kind of problem, you're going to end up with a chronic headache since the basic cause of the problem just won't go away no matter how many times you try to fix it.
The installation instructions for many of the fans available today show a metal type box that has screws going through the box and into blocking above the box. This is not what is installed in most of the newer construction homes which use the labor saving nail-on products. As a general rule builders and contractors do not provide blocking above the ceiling box with a nail-on product as the added material & labor is not cost effective.