Why Won’t My Garage Door Close? 5 Common Causes
When your garage door won't close, it’s more than an inconvenience — it’s a security and safety concern. Understanding the most common causes can help you decide whether a quick DIY fix is possible or if you should call a pro. Precision Garage Door of San Antonio offers 24/7 same-day service and fully stocked trucks to diagnose and fix most problems on the spot, but first, here are five frequent reasons your garage door might not be closing and what to check.
1. Safety sensors (photo eyes) are misaligned or blocked
Modern garage doors use photo eyes near the floor to detect obstructions. If the sensors are blocked, dirty, or misaligned, the opener won’t close the door.
- Check for dirt, spider webs, or objects in front of the sensors and gently clean them.
- Ensure both sensors are facing each other and are at the same height; even a slight misalignment can prevent closing.
- Look for a flashing LED on one or both sensors — that often indicates a misalignment or wiring issue.
If you prefer a visual guide, watch our video on garage door safety eyes: Garage Door Safety Eyes. For professional inspection and repair, visit our garage door safety page.
2. Garage door opener issues
Problems with the opener — from motor faults to wiring or logic board failures — can stop a door from closing.
- Unplug the opener, wait 30 seconds, and plug it back in to reset the unit.
- Test the wall control to rule out remote or keypad issues.
- Inspect the opener’s LED indicator and listen for unusual noises during operation.
If the opener appears to be the culprit, our technicians often repair openers rather than replace them. Learn more about our garage door opener repair services or browse replacement options at garage door openers.
3. Broken or worn springs and cables
Torsion or extension springs lift the door’s weight. If a spring or cable is broken, the opener may not be able to close or could behave erratically. This is a dangerous repair to attempt yourself.
- Look for visibly broken springs or hanging cables.
- If you suspect a spring or cable problem, stop using the door — springs are under extreme tension and can cause serious injury.
We recommend contacting our certified technicians for spring repair. See our garage door spring repair page for more information.
4. Track or roller obstructions and damage
Bent tracks, loose brackets, or worn rollers can prevent a garage door from closing smoothly or all the way.
- Inspect tracks for dents, gaps, or loose fasteners.
- Check rollers for excessive wear or debris and consider lubrication (use proper garage door lubricant).
- Do not try to bend the track back into place yourself — it’s easy to make the problem worse.
For a thorough evaluation, schedule a service through our garage door repair page.
5. Remote, keypad, or wall control problems
Sometimes the issue is as simple as dead batteries or programming errors with remotes and keypads.
- Try replacing batteries in remotes and keypads first.
- Use the wall control to test whether the opener itself works independent of remotes.
- Refer to programming videos for specific remote brands — for example, LiftMaster programming or Genie programming.
If reprogramming or battery replacement doesn't help, our team can diagnose transmitter or receiver issues during a same-day visit.
Quick troubleshooting checklist
- Check photo eyes for alignment and obstructions (how-to video).
- Try the wall switch to isolate remote problems.
- Listen for unusual noises from the opener or springs.
- Inspect tracks, rollers, and cables for visible damage.
- Never attempt spring repair yourself — call a professional.
If your door still won’t close after these checks, it’s time to call in experienced technicians. Precision Garage Door of San Antonio provides fast, friendly service with fully stocked trucks so most repairs are completed on the first visit. Learn more about our services on our garage door repair and garage doors pages.
Why choose Precision Garage Door of San Antonio?
We’re available 24/7 and prioritize safety and clear communication. Our technicians are trained to diagnose problems quickly and explain repair options. Read what local homeowners say on our reviews page or view area-specific feedback like San Antonio reviews and nearby communities such as Helotes and New Braunfels.
Want a new door instead of repair? Visit our showroom or explore new door options and design inspiration at Garage Doors and our gallery.
Need immediate help? Contact us now to schedule same-day service: Contact Precision Garage Door of San Antonio. You can also learn more about our company and our team on the employees page.
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