Common Garage Door Opener Issues - Aaron Overhead Doors
LiftMaster 8500 Wall Mount

Common Garage Door Opener Issues

Ever try opening your garage door and, when you press the button, nothing happens? This is a common problem among homeowners. Below, we’ll discuss some common garage door opener issues that keep your door from opening or closing. 

Garage Door Opener Issues

Gear & Sprocket Assembly

One problem that prevents your door from opening could be the gear and sprocket assembly. In LiftMaster garage door openers, a motor turns the gear and drive shaft inside the opener, which rotates the sprocket attached to the top of the drive shaft. This turns the chain and moves the door. If a problem occurs with this mechanism, most of the time, the problem is with the ridges in the gear. These metal parts wear out because the gear lubrication has evaporated over time. As a result of the worn gear, the sprocket cannot turn the chain and the door will not open or close. Specific problems with this mechanism include stripped gears or a broken sprocket. 

If this is your garage door opener issue, you will need maintenance or repair to fix it. For a maintenance consultation, we can simply lubricate and tighten all the opener parts. We then run an operational test to ensure all your parts are working correctly again. However, if any of these parts are broken, you may need a complete gear or sprocket replacement. In this case, we suggest replacing both at the same time to ensure proper operation.

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Limit Switches

Another common garage door issue might be with your screw drive limit switches. These can come loose or go bad over years of frequently operating your garage door. The two types of limit switches are mechanical and magnetic. Both are mounted directly to the garage door opener rail. 

To fix a problem with your limit switches, a garage door technician will need to examine your garage door parts in person. They can identify if the switches are loose or need replacing. With tools and parts we keep stocked in our trucks, we can usually repair your limit switches quickly. 

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Safety Eyes

Perhaps the most common reason your opener won’t operate your garage door is an issue with the safety eyes. These are sensitive eyes sensors located at the bottom corners of your garage door. Safety eyes ensure that children, pets, or objects are not obstructing the safety eyes’ signal. This means, to allow the door to close, the safety eyes must maintain a clear line of sight to one another. If that line is obstructed, the broken signal tells the opener to stop closing. This is a great mechanism because it prevents you or a loved one from being accidentally injured by the garage good. 

If your garage door issue is with the eye sensors, the good news is that this is typically an easy fix. For a DIY option, you can try cleaning the sensors with a soft cloth and readjust their placement so they meet. If your garage door still reverses on its own, you may need to schedule a repair appointment. One of our expert technicians can check the wiring or readjust the sensors to get them working again. To learn more about garage door safety eyes, visit our blog, Garage Door Won’t Close Safety Eyes.

Contact Aaron Overhead Doors 

Beyond just these three circumstances, there are other garage door opener issues that could cause your garage door not to work. Also, the reason your garage door won’t open may be unrelated to your garage door opener. Broken springs, off track rollers, and damaged panels are also common reasons your garage door won’t function. If you need more help with your garage door opener or any other repairs, contact us today! One of our trained technicians can quickly be at your home and ready to fix your garage door. 

If this blog about common garage door opener issues was helpful to you, please like and share so that others might benefit from it too!

Shane Riza profile pictureShane Riza
14:58 12 Sep 25
Excellent responsiveness. There was a question on where to put the window panel and Matt was committed to getting it right even if it meant redoing some work. Great work and very efficient. Will definitely use this company again.
Bruce Coppedge profile pictureBruce Coppedge
13:58 10 Sep 25
Aaron’s tech Joe arrived on time and completed the installation in a timely manner. He’s very professional and personable. I’ll definitely call Aaron w/ any future garage door issues.
John Thornhill profile pictureJohn Thornhill
16:17 02 Sep 25
Joe was great, super helpful and very informative.

will be sure to use these guys for all garage related issues in the future!
Bob Stiller profile pictureBob Stiller
17:15 28 Aug 25
The entire company was fantastic- from Bree calling me back on Memorial day to Joe arriving Tuesday morning to address my issue. The entire door system was reviewed nd evaluated thoroughly.
Joe patiently explained what I had, needed to be done and what my options in general were for repair. Once the estimate was ready, Joe again patiently explained the repair options and discussed in detail any specific line items I either didn't understand or was looking for clarification on.
The estimates were fair and reasonable for the work involved and once I made my choice the work was begun and finished well within the time frame Don gave me for the repair. I am extremely pleased with everything- top to bottom and will continue to highly recommend Aaron Overhead Doors to anyone looking for garage door repairs/ replacement.
Fabio Penta profile pictureFabio Penta
19:01 25 Aug 25
I highly recommend Aaron Overhead Doors for any garage door needs. Joe Simon is professional, knowledgeable, and truly values his customers. Ally, who manages the service calls, is also extremely friendly and helpful.

When my garage door motor stopped working after just two years, Joe and the team took care of everything from start to finish with LiftMaster. They were completely honest, immediately let me know the unit was still under warranty, and kept me informed every step of the way while arranging the replacement. The entire process was seamless and stress-free thanks to their expertise and integrity.
Mike Thomason profile pictureMike Thomason
18:00 25 Aug 25
Highly recommend Aaron Overhead Doors of Buford. They installed a garage door about 4 years ago. Called just for service and safety check - no issues. Largest item in the house, so wanted to be sure. Joe was very pleasant and helpful with answering all questions. The safety check and regular maintenance was completed quickly.
Julie Schoen profile pictureJulie Schoen
14:52 25 Aug 25
Heidi Stephens profile pictureHeidi Stephens
13:48 20 Aug 25
Our sales person was wonderful - he really went the extra mile to find out what we needed and wanted. And the installation team was great - they were attentive and made doubly sure that everything was safely installed and that we were happy with the final results. It's been five months since the garage doors were installed, and we love them. We will certainly use Aaron Overhead Doors if we need garage door services in the future, and we are happy to refer them to others who need new doors or garage door service.
Jon Christopher profile pictureJon Christopher
22:14 13 Aug 25
Matt was very attentive when I ask questions and he is very knowledgeable about the garage doors .
He made me feel comfortable

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