To help keep your garage door opener in good working condition, it's important to regularly clean the tracks and gears. You can use a brush or vacuum attachment to remove dirt and debris. It's also a good idea to lubricate the tracks and gears with WD-40 or a similar product. This will help keep them from becoming noisy or sticky. It's also important to keep the opener remote clean and free of dirt and debris. Be sure to wipe it down with a soft cloth occasionally.
Finally, be sure to test your opener monthly to make sure it's still working properly. You can do this by pressing the "open" and "close" buttons on the remote. If the opener doesn't respond, then you'll know there's a problem that needs to be addressed.