Blog • Garage door guides
Why Won't My Garage Door Open? A Step-by-Step Guide
A garage door that refuses to open is one of the most frustrating household problems - especially when your car is trapped inside. The good news is that most causes fall into a short list, and a few safe checks can narrow things down in minutes.
Work through the steps below in order. If at any point the door feels extremely heavy or you suspect a broken spring, stop and call a professional at (678) 940-0457 rather than forcing it.
Start with power, remotes, and locks
First, check the simple stuff. Is the opener plugged in and does the outlet have power? A tripped GFCI outlet or a tripped breaker is a surprisingly common culprit. Next, try the wall button - if the wall button works but the remote does not, you are likely looking at dead remote batteries or a remote that needs reprogramming.
Also check whether the manual lock is engaged. Many doors have a slide lock on the inside; if it was locked for a trip or by accident, the opener cannot move the door. Finally, look for a disconnected emergency release cord - if someone pulled it, the opener is disengaged and the door must be operated manually until it is reconnected.
The heavy-door test: checking for a broken spring
Pull the emergency release cord to disconnect the opener, then try lifting the door by hand. A healthy door should lift smoothly with moderate effort and stay put when raised halfway. If the door feels extremely heavy, slams down, or will not stay open, a torsion or extension spring has likely broken.
Do not keep trying to run the opener on a door with a broken spring - the motor will strain and can burn out. This is a job for a professional. Spring replacement is one of the most common same-day services our network handles across Atlanta.
- Door lifts easily and stays halfway: springs are probably fine
- Door feels very heavy or falls: broken spring - call a pro
- Loud bang heard earlier: classic sign of a snapped spring
- Door opens a few inches then stops: opener force settings or spring issue
Opener and track problems
If the springs seem fine but the opener hums without moving the door, the internal gear may be stripped - a common failure on older chain-drive units. Grinding or clicking sounds point to worn gears or a misaligned rail. Also glance at the tracks: a door knocked off its track after a bump from a car will jam and should not be forced.
Sensor issues usually affect closing rather than opening, but it is worth a look - if the sensor lights are off or blinking, clean the lenses and check alignment before assuming the worst.
When to stop troubleshooting and call
Call a professional if the door is stuck open overnight (a security risk), if you suspect a broken spring or cable, if the door is off its tracks, or if the opener makes grinding noises. These situations involve high-tension parts or heavy panels where DIY fixes can cause injury.
When you call (678) 940-0457, we connect you with a local Atlanta pro who can diagnose the problem on-site, explain your options, and give you a free estimate - often with same-day service.
Need a pro for this?
Reading helps — but most of these jobs are faster (and safer) in professional hands. Atlanta Garage Door Pros connects you with a local specialist: call (678) 940-0457 for a free estimate.