How to Align Garage Door Sensors: Expert Guidance from Genesis Garage Door

Are you facing issues with your garage door not closing properly, or is it reversing unexpectedly? Often, the culprit behind these problems is misaligned garage door sensors. These sensors play a crucial role in the safety and functionality of your garage door. Aligning them may sound technical, but it’s quite manageable with the right guidance. In this article, we’ll walk you through the process step by step.

What Are Garage Door Sensors?

Garage door sensors are a key safety feature. They are located on either side of the garage door near the ground and work by sending an invisible beam across the door’s path. If this beam is interrupted, the door won’t close for safety reasons. Misalignment of these sensors can cause your garage door to behave erratically.

Step-by-Step Guide to Aligning Your Sensors

1. Safety First: Before you begin, ensure your safety. Disconnect the power to your garage door opener to prevent any accidental operation.

2. Locate the Sensors: Find the two sensors on each side of the garage door. They are usually installed about 4-6 inches above the ground.

3. Check for Obstructions: Sometimes, the issue can be as simple as an obstruction blocking the sensors’ beam. Remove any debris or objects in the path.

4. Loosen the Sensors: Using a screwdriver, slightly loosen the screws that hold the sensors in place. Don’t remove them completely, just enough to adjust their position.

5. Align the Sensors: Adjust the sensors so they are both at the same height and angle. They should be pointing directly at each other.

6. Check the Lights: Most sensors have indicator lights. When the sensors are aligned, these lights will change from blinking to solid.

7. Tighten the Sensors: Once aligned, carefully tighten the screws without moving the sensors out of alignment.

8. Test the Door: Reconnect the power and test your garage door. It should now close smoothly without reversing unexpectedly.

Common Troubleshooting Tips

• If the lights on the sensors are off, check for any wiring issues.
• Ensure the sensors are clean and free from dust or spider webs.
• If alignment issues persist, consult a professional.

Why Proper Sensor Alignment is Crucial

Misaligned sensors not only cause inconvenience but can also pose a safety risk. It’s vital to ensure they are properly aligned to prevent accidents and ensure your garage door functions reliably.

Choose Genesis Garage Door for Reliable Service

At Genesis Garage Door, serving Austin, TX, we understand the importance of a fully functional garage door. Our team of experienced professionals is ready to assist you with any garage door needs, from sensor alignment to complete door replacements.

Why Genesis Garage Door?

Local Expertise: We’re familiar with Austin’s specific needs and preferences.
Quality Service: Our commitment to quality ensures your garage door operates smoothly.
Customer Focus: We prioritize your satisfaction and safety.


Aligning your garage door sensors is an essential maintenance task that you can often handle yourself. However, if you encounter difficulties or prefer professional assistance, Genesis Garage Door in Austin, TX, is here to help. Contact us for reliable, high-quality garage door services.


1. How do I realign my garage door sensors?

• To realign your garage door sensors, loosen the wing nut or screws holding the sensor bracket, adjust the sensor to point directly at the opposite sensor until its light turns solid (usually green), and then retighten the wing nut or screws to secure it in place.

2. Should both garage sensors be green?

• The color of the lights on garage door sensors can vary by manufacturer. Typically, one sensor will have a green light to indicate that it is powered, while the other sensor may have a red or yellow light to indicate that it is properly aligned. Refer to your user manual for the specifics of your system.

3. How do you reset garage door sensors?

• To reset garage door sensors, you typically need to unplug the garage door opener from its power source, wait about 10 seconds, and then plug it back in. This can reset the sensors and the opener’s logic board. Some systems may also have a reset button that can be used.

4. Why is one garage door sensor yellow and the other green?

• One sensor is usually a transmitter, which might have a yellow light, and the other is a receiver with a green light. The green light typically signifies that the receiver is getting power and is not obstructed, while the yellow light indicates that the transmitter is sending the beam.

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