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12 Reasons Why Your Garage Door Won’t Close (Fixed Guide)

12 Reasons Why Your Garage Door Won’t Close (Fixed Guide)

Do you have a garage door that refuses to close fully so you cannot lock it? This can be a serious problem because you want to keep your car and other items you might have stored in your garage safe. So why will the door not close and what can you do about it?

In this article, we cover the different reasons that can prevent a garage door from closing. So read on to find out how to solve the problem.

What to Do When Your Garage Door Will Not Close?

The first thing you should do is conduct a visual check. You will find below a list of things you need to look out for.

Once you have identified the problem, you need to decide if it is something you can fix yourself. For example, it is easy to remove obstacles blocking the door, sensors, or the transmitter antenna. You can also clean away any buildup of dirt and grime.

If you suspect a mechanical failure, contact the manufacturer or the company where you bought the garage door from. Trying to fix mechanical issues on the door may cause further damage and void any warranty on the door.

Why Will The Garage Door Not Close

Why Will The Garage Door Not Close?

There are many reasons for garage doors not closing, ranging from various obstacles to the door being thrown off its track.

1. Obstacles

The most common reasons for the door not closing are straightforward to solve. The doors have sensors to stop them from closing if there is an obstacle on the way so check for anything that could alert the sensors. This could be anything from buildup grime to insect nests or tiny toys.

To solve the issue, remove the culprit and the door should close again. If there is no obstacle or removing it won’t work, work through the reasons below to detect the problem.

2. The Safety Sensors Are Faulty

The garage door safety sensors are usually at the bottom of the door, approximately six inches (or 15 cm) off the ground. The garage door sensors detect when an object or a person is in the way and stop it from closing and colliding with the object or person.

If the sensors are not in the correct alignment, they may send a non-stop blinking signal to the door that there are obstructions when there are none. Alternatively, if the power supply to the sensors has been cut, they will not emit the signal correctly.

3. Safety Sensors Are Dirty

The photo-eye sensors are on both sides of the door where they signal to each other. These photo-eyes collect dirt over time, which can disturb the signal beam between the two sensors. When this happens, the garage door will not close properly.

This problem is easy to solve. All you need is a soft cloth and a non-abrasive cleaning agent to clean them. Be gentle when removing the dirt and debris from the glass surface to avoid scratches. If cleaning the photo-eyes does not solve the problem and everything else works, you may need to contact the door company.

4. The Limit Setting Needs Adjustments

If you have had a new garage door installed and it closes but instead of staying closed it opens again immediately, you may have an issue with the limit settings of the door opener. The limit set on a garage door is used to define how far and fast the door moves to close completely. If not set correctly, the door will open again after closing.

Check the limit range on your door to see if the door is closing too fast or if the settings are too high. When the setting is too high, the door will not close properly as it will wrongly detect it is about to hit something and automatically reverse to prevent an accident.

To readjust the limit settings on the garage door openers, you will need a ladder to access the settings knob, which is on the garage door motor. You should find instructions for readjusting the limit settings in your owner’s manual.

The Tracks Are Out of Alignment

5. The Tracks Are Out of Alignment

If your door tracks are not in alignment, the door cannot run over the metal track. Your tracks should be precisely parallel for the door to close properly. If there are gaps between the rollers and the rail, you might need to call a professional from the door company to realign the tracks.

6. The Tracks Are Damaged

It is possible that over time, the tracks can get damaged, blocked, or bent and this will stop the garage door from closing fully. If the issue is caused by a blockage on the track, it is solved simply by moving it.

However, if you notice the tracks are bent or otherwise damaged, you may need to replace them before they become dangerous. The best thing to do is to call the company where you purchased the door so they can send a member of staff to inspect the tracks.

7. The Transmitter Battery is Dead

The transmitter for your garage door requires adequate power from batteries to work correctly. When the transmitter batteries are dead, the transmitter will no longer send a signal to close the door.

If the battery needs replacing, ensure you place the new battery correctly in the battery housing with the negative and positive terminals in their right places.

8. Other Transmitter Issues

Your transmitter will not work if you are out of its range. Check the range where you can operate the door and try again. If the door still won’t close, there could be a problem with the antenna.

Check for any obstructions that may block the antenna from receiving a signal. Next, check the antenna for signs of damage. If the antenna is damaged, call a technician to check and repair or replace it.

If you are within range and the antenna works perfectly, try changing the frequency of your transmitter. Sometimes, when two neighbors have the same transmitter frequencies, it causes interference between your transmitter and receiver. When you change the frequency, you might need to reprogram your remote.

Issues With The Remote Control 

9. Issues With The Remote Control

You may have an issue with your remote if you cannot activate your door. It may be because the batteries are drained so try it with a new set of batteries. If it still won’t work, you may need to reprogram your remote.

Many garage door remotes have a “Learn” button to reprogram it. However, since remotes from different manufacturers may operate differently, it is best to check your instructions booklet for details on how to reprogram your garage door remote.

10. The Disconnect Switch is Enabled

Your disconnect switch may be enabled if the garage door motor runs, but the door refuses to close. Your garage door opener will always have a disconnect switch. This will allow you to close the door manually if you lose power.

The function could have been enabled by accident and as a result, the door has lost the connection to the motor. To fix the problem, reattach the disconnect switch and check if your door closes.

11. Broken Cables or Tension Springs

Cables and tension springs (also called torsion springs) are used on garage doors to allow them to close safely and slowly. If the springs or cables are broken, the door will close too quickly. This could be dangerous as the faulty door could hit something or someone when it closes at high speed.

If you have broken springs or snapped cables, you should not operate the garage door until they have been fixed. You will need to contact the door company so they can send a professional to fix the problem. You can prevent problems with tension springs and cables by inspecting them regularly for signs of wear and tear.

12. Problem With a Safety Feature

All modern garage doors come with a safety feature that is programmed to react and open the door immediately if it detects something is under the door. If you think there may be an issue with the safety system, there is an easy way to test it.

First, adjust the limit on the garage door. Next, place a box or a board under the door. When the box or board is in place, try closing the door. It should detect the obstruction and reopen. If it doesn’t, there is a problem with the safety feature which should be addressed as quickly as possible by a professional.


As you have seen, there can be many reasons why your garage door will not close. While some issues are easy to solve and will not require professional help, you need to contact a garage door repair company if you suspect mechanical or safety issues.

We hope you have found the answer to why your garage door won’t close in this article. If you have any questions on the topic, write them in the comments section. You might also find this short troubleshooting video helpful.


Monday 8th of August 2022

Great summary thank you for your time putting this together.

Robert C

Sunday 28th of November 2021

Here's a word of advice. You see those three bars on the left for Facebook, Pinterest, etc.? They are annoying and block the ability to easily read the article. So annoying I didn't even bother trying to read it. I don't have Facebook, I don't use Pinterest and I don't Tweet so I'm not going to click on them and I am NOT going to try reading around them. They are a pure annoyance and I am moving on to another article where I don't have to dodge pages trying to force shit down my throat.

Walter Westerman

Thursday 2nd of December 2021

Thank you, Robert! Removed!