How Does a Garage Door System Work?

Do you know how your garage door system works? If not, you’re not alone. Many people don’t understand the mechanics behind their garage door.

But it’s pretty simple – and understanding how it works can help you troubleshoot any potential problems. Below, we’ll break down the basics of a typical garage door system. Are you ready? 

Let’s get started!

Garage Door System

Different Parts of a Garage Door System

A garage door system comprises several parts, all working together to open and close your door. The first part is the garage door opener, a motorized unit that pulls or pushes the door along its tracks.

The opener is controlled by a remote, which sends signals to the opener to tell it when to open or close the door. The opener is also connected to a sensor, which helps prevent the door from closing if something is in its way.

Finally, the opener is connected with springs and cables, which help to balance the door’s weight and make it easier to open and close.

How is the Door Opened and Closed?

The opener is what opens and closes the door. When you push the button on your remote, it sends a signal to the opener unit. The opener then activates the motor, which pulls or makes the door along its tracks until it reaches the fully open or closed position.

The sensor helps to prevent accidents by making sure that the door doesn’t close if there’s something in its way. The springs and cables help to balance the weight of the door so that it’s not too difficult to open or close.

Common Problems with Garage Door Systems & How to Fix Them?

One of the most common problems with garage doors is that they get off track. This can happen if you hit your remote too hard or something bumps into one of the tracks while the door opens or closes.

If your door gets off track, don’t try to fix it yourself; call a professional for help. Another common problem is that the sensors get out of alignment and must be adjusted. It can usually be done by following instructions in your owner’s manual.

Sometimes springs and cables break, which can cause serious injury if you’re not careful. If this happens again, call a professional for help; don’t try to fix it yourself. 

Tips for Keeping Your Garage Door System in Good Condition 

There are several things you can do to keep your garage door system in good condition:

  • Ensure you never hit your remote too hard; this can damage the remote or the opener unit itself.
  • Check your tracks regularly for any debris or obstructions; if you see anything blocking them, remove them immediately so your door can continue operating smoothly.
  • Every few months, look at your springs and cables; if they look worn or frayed, call a professional for service before they break entirely. 


As you can see, a lot goes into making your garage door work! It’s essential to understand how your system works so that you can troubleshoot any problems that might arise. It’s also necessary to perform regular maintenance on your system to stay in good working condition for years to come.