Copacabana fans are my favorite for simple, cost, quiet, easy to clean, air movement and have an aluminium blade option. Aluminum blades are not only lighter and easier on the motor but won't rust and throw an amber ring around your living room at fan level. I have 6 ceiling fans and keeping them clean is enough without having to look for rust .... then sand and paint them.
So as much as I like Copacabana, they installed a massive amount of bad capacitors. These are the start/run capacitors just above the motor, not the speed control on your wall switch. At first I had no idea why I had only slow for speed so I took the whole fan to an electrical motor guy. He changed the capacitor for 100 pesos. I took the second, third and fourth to him as well. The fifth I was moving from my bodega to my palapa patio so it was already down and easy to take to the mechanic. Number six I decided to just ask the mechanic if he would sell me a capacitor and I'd change it myself. He didn't have any but suggested an electrical store that would. Sure enough and I bought 2 at 25pesos @ because my neighbors had the same problem. We both now have fans with a full variety of speeds.
The favorite but one speed fan
New capacitor in place
Right above the motor is the white cup that just covers connectors and the capacitor. It's kind of easy to push the cup up the shaft to expose the capacitor. Cut the plastic Zip Strap, pull out the capacitor, undo the wire nuts and install the new one in reverse order. That is really all there is to it.
A two wire rectangular like the one on the right
Then comes the tricky and more expensive fans .... those of my car. I followed a delivery truck back from Colima a few days ago and thought he had the problem the way I heard the noise. As we dove up our quiet road the noise was still there. This morning I confirmed a bearing was gone in one motor and the blades were flopping around. My air conditioning and electrical guy said better to replace both as a pair and he can pick them up later in the week at a Manzanillo Junk Yard (yonke) for 800 pesos.
Radiator and Air Conditioning Condenser fans
for a 2000 Voyager