Many garage door repair issues are obvious — the door doesn't open or close when you hit the button on the remote. However, other times the problem is less visible. For example, the opener could be working, but the door won't open because there is an issue with the springs, hinges or rollers.
If you notice any of these problems with your garage door, call a professional right away. This is not a DIY project, and you shouldn't attempt it on your own unless you're absolutely sure what you're doing. A trained technician will be able to spot any potential problems with your system and make repairs quickly before they become bigger issues that cost more time and money down the line.