Garage Door Won’t Open? Troubleshooting Guide
A garage door that won’t open usually means one of two things: the opener has a problem, or the door itself does. Here’s how to tell the difference in a few minutes, no tools required.
Start Here: Is the Opener Even Getting Power?
Before anything else, listen. When you press the wall button, does the opener hum, click, or light up? If there’s no sound and no light, it’s likely a power problem.
- Check the outlet. Most openers plug into an outlet on the garage ceiling. If someone unplugged it for a holiday light or a tool, that’s your answer.
- Check the GFCI outlet. Garage outlets are often on a GFCI circuit that trips during storms or power surges. Look for a tripped GFCI outlet (test and reset buttons) in the garage or elsewhere on the same circuit.
- Check the breaker. After a thunderstorm or a surge, the garage circuit breaker may have tripped.
On the Grand Strand, tripped GFCIs after a summer storm are one of the most common “my opener is dead” calls, and it takes ten seconds to check.
Next: The Remote, Keypad, and Wall Control
- Try the wall button. If the wall button works but the remote doesn’t, the remote’s battery is probably dead. Replace the battery and test again.
- Check the lock setting. Many wall controls have a “lock” or “vacation” button that disables remotes. If it’s been pressed, the wall control usually shows it. Press it again to unlock.
- Try a different remote or the keypad. If one works and the other doesn’t, the problem is with the one that doesn’t.
If nothing responds but the opener has power, see our page on remote and keypad programming. A power outage can sometimes cause a remote to lose its programming.
The Opener Runs, But the Door Doesn’t Move
If you hear the motor running but the door stays put, look up at the opener.
- Is the emergency release disengaged? The red cord hanging from the trolley disconnects the door from the opener. If someone pulled it, the opener will run without moving the door. Re-engaging it usually just means closing the door and pulling the release handle toward the opener until it clicks back into the trolley.
- Is a gear stripped? Some openers use a plastic gear that can wear out over time. A grinding sound, or the opener straining without lifting, points to this. It’s a repairable issue, but it needs a technician.
The Most Serious Cause: A Broken Spring
If the opener strains, the door lifts only a few inches, or the door feels far heavier than usual, a broken spring is the most likely cause. Other signs:
- You heard a loud bang from the garage at some point
- There’s a visible gap in the spring coil above the door
- The door won’t stay up when you lift it manually
Other Mechanical Causes
- A snapped cable. The door hangs crooked or one side sits lower. See our cable repair page.
- An off-track door. A roller has jumped the track. See our off-track repair page.
- A bent track or obstruction. Look along both tracks for damage or something blocking the path.
- A frozen or corroded component. Rust on rollers or hinges can make a door bind so tightly the opener can’t move it.
Sensors Don’t Usually Stop a Door from Opening
One thing worth knowing: photo-eye sensors control closing, not opening. If your door won’t open, the sensors are rarely the reason. For a door that won’t close, see our sensor troubleshooting guide.
How to Open the Door Manually (Safely)
If you just need to get your car out and you’re confident the spring is intact:
- Make sure the door is fully closed if possible, then pull the red emergency release cord down and back.
- Lift the door slowly from the bottom. A properly balanced door should feel fairly light and stay up on its own around halfway.
- If it feels very heavy, jerks, or won’t stay up, let it down carefully and stop. That’s a sign of a broken spring or damaged cable.
When you’re done, don’t re-engage the opener until the underlying problem is fixed.
When to Call a Professional
Call us if the door feels extremely heavy, the opener strains or grinds, you see a broken spring, cable, or off-track roller, or if the simple checks above didn’t fix it. Most repairs like these are completed in a single visit, with a written estimate before we start. Typical ranges: spring replacement $200-500 depending on single or pair, cable replacement $150-250, opener repair $100-220. See the cost guide for more.
Frequently Asked Questions
Usually a dead remote battery, or the remote lost its programming after a power outage. Replace the battery first, then reprogram if needed.
Often the emergency release has been pulled and the door is disconnected from the opener, or an internal gear is stripped. A broken spring can also cause this.
If the spring is intact, yes, using the emergency release cord. If you suspect a broken spring, don’t lift the door manually because it may be too heavy and could drop.
Power surges or outages can trip breakers and GFCI outlets, wipe remote programming, or damage opener electronics. Check power first.
Same-day service is typically available for doors that won’t open or close.
Door Stuck Shut?
Call (854) 248-1833 for same-day help.
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