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Garage Door Sensors


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Garage Door Sensor Issues

Garage doors feature numerous moving parts and can be extremely heavy, with potential for causing significant damage or injury to pets, family members, and property.

Due to this potential, all garage doors manufactured in the U.S. after 1993 are required to have a safety reversing system, which will detect any obstacles between the garage door and the ground, and reverse or force the garage door to stay open.

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What Are Garage Door Sensors?

Modern garage doors are always equipped with a safety reverse mechanism. The most common safety reverse mechanism consists of two safety sensors.

These garage door safety sensors are typically mounted 4-6 inches from the ground along the garage door track. The sensors are connected by an invisible infrared beam and are programmed to reverse the garage door if an object, person, or animal gets between the two sensors.

Malfunctioning garage door sensors can cause the garage door to remain open or reopen immediately after closing. Most garage door sensors have a light that is programmed to blink to indicate a problem.

Garage door safety sensor

A typical garage door safety sensor that you might find in your garage.

Common Problems With Garage Door Sensors

Dirt or dust on the sensors

Misalignment due to jarring or movement during normal use

In rare cases, the lens can become damaged and need to be replaced

How to Fix Garage Door Sensors

Be sure to disconnect your garage door system from the power supply before attempting any garage door system repair or cleaning. To evaluate and repair broken garage door sensors, Precision Garage Door recommends the following steps:


Check for any obstructions in the doorway that may be interrupting the connection between the sensors.


Thoroughly clean both lenses. We recommend using a cotton swab and rubbing alcohol clean the lenses.


Inspect the wires that lead to the sensors for any damage or fraying.


Check the alignment of the sensors. You can check the alignment by tying a string between the sensors and using a level to make sure they are aligned. If adjustment is needed, tighten the brackets attached to the sensors.

Sometimes, sensors will actually malfunction due to problems with your garage door opener or remote. If the above steps don’t solve your problem, it’s a good idea to call a professional to make sure there aren’t any major issues with your garage door system.

People Love Our Garage Door Sensor Repair Service

Every day, we receive amazing feedback from our customers. Here are just a few stories from customers whose garage doors were repaired.

“I always use Precision Garage Door for servicing. They are honest and trust worthy. They do a great job. I had the garage door repaired this time. The technician was timely and very professional. Precision Garage Door is the best.” – Pat L.
“Excellent customer service. Technician was knowledgeable and customer oriented to ensure the job was done correctly.” – Michael G.
“Danny was first rate. He knew his stuff, was efficient and was so very professional. We can’t recommend him or your company higher. Thank you for sending us such a top notch technician. “ – Suzanne M.
“We found that the service provides was of the best and very professionally done. Our garage door opener had been hit by lightning while we were away. When we called Precision, they sent a repair tech as soon as they were able. “ – Harold T.
“Precision was able to send a technician out the same day I called for service. The technician arrived early and was able to complete the repair quickly. I would recommend Precision for any of your garage door needs.” – Edna F.

Call today to schedule your

free Garage Door Consultation!

Call 24/7 - (864) 641-3739

CALL 24/7
(864) 641-3739