How to Diagnose a Garage Door Issue on Your Own?

How to Diagnose a Garage Door Issue on Your Own?

Garage doors are complicated machines, and with that, there is a lot that can go wrong even with Regular Maintenance. So, not only do you have various types of openers but also garage doors. However, garage doors themselves aren’t as complicated. Garage Door Openers are a series of systems that work together to raise and lower your garage door.

The good news is that many of the common problems people experience with their garage doors can be fixed on their own. All you need is a ladder to reach up on top and a few tools. That said, working on a garage door with no experience can be dangerous, and if you’re not comfortable doing it might as well call a garage door professional like us.

Below we’ll look at the steps you can take to diagnose the issue with your garage door.

Table of Contents

Power Up

If your Garage Door is Unresponsive, start by checking if it is getting power. The LED lights on the motor unit, wall panel and safety sensors should all indicate receiving power. If they aren’t, then maybe unplug the motor and check the circuit breaker; if there are any blown fuses, plug the motor and flip the switch.

Unlock It

It could be that the lock is engaged, and as a safety feature, you can easily turn it back on and then off, but when off, it prevents the keypad or the remote from operating the garage door.

To check if it is locked, take a look at the green LED light mounted on the wall near the opener button. You might need to remove the plastic housing with a screwdriver to access the button.

If you notice the green button blinking, then the door is locked. You only need to press and hold the “Lock” button for a few seconds until the light stops blinking and retry with your keypad or remote.

Overly Sensitive

Garage doors have safety sensors because it prevents it from closing on people, pets and precious belongings. However, these sensors can quickly get out of alignment and giving the computer onboard the false impression that something is blocking its path.

The garage door has two sensors, one sends a beam of light, and the other receives it. You will want to check both to see if the LED light is on or if it’s off. If the light isn’t shining, the sensor assumes something is in its way or is blocked or misaligned.

So, both sensors need to be lined up correctly, with no dust, cobwebs, and debris in their way.

If all appears ok, you might want to check the wire that leads to it for damage. If the door isn’t closing and you see the light on the motor blinking, it means you have a sensor that’s picking up something in its path.

However, this can be overridden by pressing and holding the button mounted on the wall. If the door closes, and you are sure nothing is in its way, you have to get the sensors replaced.


Modern garage doors are a complex piece of equipment that requires maintenance and professional attention or at the very least They Will Start Squeaking. That’s why if you encounter an issue, it’s best to call professionals like us to handle it for you.

By |2022-11-08T12:48:17+00:00May 20th, 2021|0 Comments

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About the Author:

Ran Kroynish - 15 Years Of Garage Door Experience - Elite Garage & Gate, Locally Owned And Operated. We are a full-service garage door and gate installation and repair company with a dedication to superior customer service.

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