It is important to remember that this is one of the largest moving parts of your entire home. Any problem with it is going to compromise your safety. At a minimum you need to ensure that the following parts are checked on a regular basis: locks, tracks, hinges, cables, rollers, and springs. Sometimes there are upgrades which involve the installation of electronic openers. All these must be serviced as a matter of course using the best equipment. Do not forget that there are opportunities to do some upgrades including finding materials that are particularly amenable to your climatic conditions. There are some indicators that all the issues have been resolved. One of them is the garage door opening and closing without any unusual noise or scraping. The reversing mechanism which is installed for safety reasons must work in as far as it must recoil if there is an object underneath the garage door.