Why Is The Garage Door Opening By Itself?

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A faulty garage door can open the road to a lot of threats. From burglary to trauma, anything can happen. A garage door opening by itself is an issue that needs prompt dealing to avoid any mishap.

When the garage door opens or closes itself automatically, the phenomenon is known as phantom operation. There is no need to worry though, the solutions are pretty simple, and this technical difficulty will go away in no time.

Let’s get to the causes first; then, we will move on to the solutions.

Why Does A Garage Door Keep Opening By Itself?

Here are 4 probable causes of a garage door opening itself.

Safety Sensors

Safety features are added to the garage door, which automatically opens when they detect any block during closing. The motors are responsible for handling this. If the door, while closing, finds any sort of resistance, then it will immediately open itself up. This goes for the slightest of resistance, such as a shoe or pile of leaves even.
Another reason for garage door opening after closing itself is improper alignment of floor sensors. The sensors are put on the tracks, and in case of a bent, they will stop working.
Thankfully, the doors come with a light that blinks if any blocking is present that might cause the garage door to start opening itself. However, if you do not find anything there, the sensor might need replach2ent.

Check Garage Door Button Opener

The button is somewhat similar to a doorbell; if your garage door activates using a button, make sure there is no pressure and free from debris. The accumulation of dirt and dust can easily cause pressure to build on it, making the garage door open itself.
Forget not to check the wiring and circuit connection of the house as well. You might be doing everything right and not checking the circuit where the problem lies.

Transformer and Control Board

If you find no issues with the wiring and safety sensors, then you must have a look at the control board. Your garage door might be opening itself due to the faulty board. Sudden power surges and voltage fluctuations are the main reason for it going bad. It is a good practice to check the voltage coming in using a multimeter periodically.

Radar Problem

It is one of the least common occurrences but may happen. If you find none of your garage door problems, it is still opening and closing itself; talk to your neighbors. They might have set their garage door with the same code causing the sensors to detect it. It is a very rare phenomenon but not completely irrelevant.

Solutions for Garage Door Opening Problem

  1. Change the radio frequency or code– the sensors work on frequencies and catch radio waves. Other devices like car radios, a nearby police vehicle, or your neighbor’s garage door can get mixed. If you are lucky, changing the code and frequency will easily solve your problem.
  2. Make sure the button is clean and the circuit is working as it should. Check for the light streak that indicates a pushed button.
  3. Check the position of sensors; even the slightest bend can cause thh2 to malfunction.


A garage door opening itself is problematic. If you can’t seh2 to find where the fault lies, it is better to approach a professional. Garage Door Doctor is here for your aid; call now at 281 855 9300 or 281 578 7659 to talk to a professional and get the best services at most affordable price.