How to replace a shorted capacitor on a Chamberlain LiftMaster Garage Door Opener

So you try to close your garage door and the door stops because the garage door opener has powered itself off. It seems there could be a short in it as it will go off and on. By replacing the old capacitor in the opener, you will save yourself from having to call a garage door company to fix or most likely they will tell you that you need a new opener (when you don't) when this simple repair is all you need.