How to Bypass a Garage Door Sensor

If your garage door is acting up and you can’t figure out why it may be time to check the sensors. These tiny devices are responsible for ensuring the door doesn’t close when something is in the way, so if they’re not working correctly, your garage door may not work. Today I will show you how to bypass a garage door sensor. Luckily, it’s easy to bypass a garage door sensor if you know-how. Read on to find out how.

How to Bypass a Garage Door Sensor

The garage door is one of the heaviest objects we use in our homes. It is not only a door, but it is also an object that can be used as a barrier between our house and the exterior. It is essential to have this barrier for security reasons and protect our belongings from bad weather conditions. However, when our garage door does not work correctly, it becomes a nuisance and can be a safety hazard.

Summary: As a safety feature, garage door sensors prevent the door from closing when an object or person is in the way. However, sometimes there may be situations in which you need to bypass the sensor. To do so, you can try blocking the sensors with tape or cardboard or holding down the wall button.

What Do Garage Door Sensors Do?

Garage door sensors detect when a garage door is open or closed. They are typically installed near the bottom of the door and consist of two parts: a transmitter and a receiver. When the door is opened, the transmitter sends a signal to the receiver, activating the door opener.

There could be any number of reasons why someone would want to bypass a garage door sensor. For example, maybe you’re in a hurry and don’t want to wait entirely for the door to open. Or perhaps you have an automatic garage door opener and don’t want it to activate every time you open the door. Whatever the reason, it’s quite easy to do.

A Detailed Guide on How to Bypass a Garage Door Sensor

Step 1: Gather Necessary Tools and Equipment

Before beginning the process of bypassing a garage door sensor, gather the necessary tools and equipment. You will need a ladder, a screwdriver, a pair of needle-nose pliers, and a piece of opaque material, such as electrical tape or a small piece of cardboard.

Step 2: Turn Off Power to the Garage Door Opener

Safety should always be a priority when working on electrical devices. Before attempting to bypass the garage door sensor, turn off the power to the garage door opener by either unplugging it or turning off the circuit breaker that controls the device. This will prevent any accidental injuries while working on the sensor.

Step 3: Access the Sensor

Use a ladder to safely access the garage door sensor, which is typically located near the bottom of the garage door track. There are usually two sensors, one on each side of the door, connected by a beam of infrared light. These sensors are designed to prevent the garage door from closing if something is blocking their path.

Step 4: Identify the Sensor’s Components

Each garage door sensor has two main components: the transmitter and the receiver. The transmitter sends an infrared signal to the receiver, which, in turn, sends a signal to the garage door opener if the beam is uninterrupted. The receiver typically has a small LED light, which will blink or change color if the beam is blocked. Identify the receiver to determine which sensor you need to bypass.

Step 5: Remove the Sensor’s Cover

Using a screwdriver, carefully remove the cover of the receiver sensor. This will expose the inner components, including the photoelectric eye responsible for detecting the infrared signal.

Step 6: Block the Photoelectric Eye

To bypass the garage door sensor, you must prevent the photoelectric eye from detecting the infrared signal sent by the transmitter. Cut a small piece of opaque material (such as electrical tape or cardboard) and use the needle-nose pliers to carefully place it over the photoelectric eye. Make sure the material covers the eye completely, preventing it from receiving the infrared signal.

Step 7: Reassemble the Sensor

Once the photoelectric eye is covered, reattach the sensor’s cover using the screwdriver. Make sure the cover is securely fastened to prevent it from falling off during operation.

Step 8: Test the Bypass

Restore power to the garage door opener by plugging it back in or turning the circuit breaker back on. Press the garage door opener button to close the door. If the door closes despite an object blocking the sensor’s beam, the bypass was successful. If the door still refuses to close, repeat the process, ensuring the photoelectric eye is completely covered.

Step 9: Secure the Bypassed Sensor

If the garage door is now closing correctly, you can secure the bypassed sensor. Use electrical tape or another adhesive to fasten the opaque material over the photoelectric eye, ensuring it remains in place during regular operation.

Please note that bypassing a garage door sensor is not recommended, as it can create a safety hazard. Garage door sensors are designed to protect people, pets, and property from being damaged or injured by a closing garage door. If your garage door sensor is malfunctioning or causing issues, it is best to consult a professional garage door technician to repair or replace the sensor.

Step 10: Consider Alternative Solutions

If you have successfully bypassed the garage door sensor but are concerned about safety, there are alternative solutions available. For example, you can install a manual disconnect, which allows you to disengage the garage door opener from the door, enabling you to open and close the door manually. This can be a safer option than bypassing the sensor, as it still allows you to operate the door in the event of a malfunction or emergency without compromising safety.

Step 11: Regularly Inspect and Maintain the Garage Door System

To ensure the safe and proper operation of your garage door system, it’s essential to regularly inspect and maintain all components, including the sensors. Check the alignment of the sensors and the condition of the wiring. Clean the photoelectric eyes with a soft cloth and mild cleaner to remove any dirt, dust, or debris that may interfere with the sensor’s operation. By keeping your garage door system in good working order, you can minimize the need for bypassing safety features like the garage door sensors.

Step 12: Understand Local Regulations

Before attempting to bypass a garage door sensor, it’s essential to understand any local regulations and safety codes that may apply. Some areas may have specific requirements regarding garage door safety systems, and bypassing the sensor could result in fines or other penalties. Additionally, modifying the safety systems on a garage door may void the warranty, so it’s crucial to consider the potential consequences before proceeding.

Step 13: Consult a Professional

If you’re uncomfortable with bypassing the garage door sensor yourself or have concerns about the safety implications, consult a professional garage door technician. They can assess the situation, recommend appropriate solutions, and perform any necessary repairs or adjustments to ensure your garage door system operates safely and efficiently.

Bypassing a garage door sensor should only be done as a temporary measure or in emergency situations, as it can compromise the safety of the garage door system. It’s essential to prioritize regular maintenance, follow local regulations, and consult professionals when necessary to keep your garage door functioning safely and efficiently.


  1. Always be aware of your surroundings before attempting to bypass a garage door sensor.
  2. Make sure you have ample space to avoid being injured in the garage door opens suddenly.
  3. Never attempt to bypass a garage door sensor if someone is inside the garage.
  4. If you are unsuccessful in bypassing the sensor, do not force the door open.
  5. Contact a professional if you have difficulty bypassing the sensor or are unsure of how to proceed.

What to Do if Garage Sensor Is Not Working?

If your garage door sensor is not working, you can try to bypass it. There are a few different ways to do this, and each method will work a little differently depending on the make and model of your garage door opener.

 Troubleshoot Garage Door Sensor

In most cases, you will be able to find a small hole near the bottom of the garage door panel. This is where you will need to insert a wire hanger or other thin metal object to trip the sensor. If there is no hole, you may be able to pry open the panel slightly with a screwdriver or other tool to get inside.

Once you are inside, you will need to locate the sensor itself. This is typically a tiny black box mounted on the wall or ceiling. You can try to trip the sensor by waving an object in front of it or disconnect the wires and temporarily tape them together.

If all else fails, you may need to call a professional to help you bypass the sensor.

Do Both Sensors on Garage Door Be Green?

If the sensors on your garage door are green, it means that the system is working correctly. However, if one or both of the sensors are not lit up, it could mean that there is a problem with the sensor or that something is blocking the path of the sensor. To bypass the sensor and open the garage door, you will need to disconnect the sensor temporarily. This can be done by unplugging the sensor from the wall or unscrewing it from its mount.

Once you have bypassed the sensor, you can open and close the garage door. Be sure to reconnect or screw in the sensor when you are finished using the garage door. This will prevent someone else from being able to open the garage door without your permission.

What Does It Mean When One Garage Door Sensor Is Green, and One Is Yellow?

If you have a garage with two-door sensors on each side of the door, you may have noticed that they are not always green. Sometimes one sensor will be yellow, and the other will be green. So what does this mean?

Well, it’s pretty simple. The green sensor means that the garage door is closed, and the yellow sensor means that the garage door is open. This is important to know because it can help you determine whether or not your garage is open or closed.

 Yellow Sensor Means That  The Garage Door Is Open

If both sensors are green, you know that the garage is closed. If both sensors are yellow, you know that the garage is open. And if one sensor is green and one is yellow, then you know that the status of the garage is somewhere in between – it’s not fully open or closed.

If you need to bypass one of the sensors, either because it’s not working properly or because you want the garage door to stay open, you can do so by using a simple trick. All you have to do is cover up the sensor with some tape or paper. This will tell the garage door opener that the door is closed, even if it’s open, and it will allow the door to open and close normally.


Garage door sensors can be easily bypassed if you know-how. By following the simple steps in this article on how to bypass a garage door sensor, you will be able to open your garage door without triggering the sensor. While we do not recommend breaking, this information could come in handy if you lose your key or forget to bring it.

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Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

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