11 Reasons Why Garage Door Sensor Isn’t working – Rockwall Best Garage & Overhead Doors

Sensors for garage doors are an essential element in the overall system. It stops the door from sliding down when there’s an obstruction or obstruction in its path. This feature keeps your pet, you, your belongings, and your pets safe and secures the door from damage that could cost you thousands of dollars.

Here’s the list of the most common reasons why your garage door isn’t working according to Garage Door Repair Rockwall TX.

1. Obstructed Signal Transmission

The garage door sensor is equipped with two eyes that are photo-sensitive, and are situated just a few centimeters higher than the surface.

The first is the eye that sends information and is equipped with an amber-colored LED that must always be on. The other is the eye that receives and is equipped with the green LED light.

If anything is blocking the sensor’s eyes even though the object is as small as sheet paper the garage door will not function. That’s why it’s important to complete a thorough inspection of the surrounding areas and take out any obstructions.

If you find anything that blocks the signals then the next thing to do is to check the brackets of steel that are attached to the doorway. If they’re located at the threshold of the sensors they might hinder the transmission.

The signals transmitted by sensors are electromagnetism and therefore, metals can absorb the signals. This is the reason why these brackets – along with anything that is made of metal that is made of metal – are able to block signals.

If this is the case, you’ll need to alter the position of the sensors to ensure they are above the brackets.

2. “Dirty” Sensor

If you are always keeping the garage door open or live near an area that is crowded, dust is likely to enter the space. This, in conjunction with your vehicle’s exhaust, can build up over the sensors.

Similar issues can be triggered when you reside in a place that is prone to rain or if the sprinklers are able to soak the garage. Like metal, water is a conductive substance that can block the sensor’s signals.

In addition, if you’ve not cleaned your garage in a long time, the spider webs could be accumulating on the sensor as well.

Like the obstacles I’ve listed in the past Dust, water or spider webs could interfere with signal transmission as well.

The good news is that this is simple to diagnose. All you have to do is wipe the sensors using a clean dry, dry cloth. It’s also helpful to keep the garage door closed; this will stop dust/rain from accumulating over the sensor.

3. Sunlight

Are you finding that the garage door sensor isn’t working at specific times in the morning? It could be because of the sun’s rays getting into your garage.

Similar to the obstructions mentioned above, sunlight can also influence the transmission of signals. The sun’s rays could make your garage door sensor believe that it’s physically inaccessible to something however it’s not.

If this is the situation, specialists recommend switching the sensor’s sides. For instance, if the eye is sending signals to your left, you can put your eye on the left (and reverse it.)

If that doesn’t work then you might need to install sun protection to protect the garage door’s sensors.

4. Sensor Eye Displacement

If the sensor’s eyes aren’t aligned properly, they won’t be capable of sending or receiving signals that can make garage doors work. Fortunately for you, it’s easy to identify this issue.

In the beginning, examine the position of the sensors. Are they pointing toward the left or right? It could be that you – or something have hit it which caused it to become unstable.

In the next step, you must examine the eye’s green-colored LED. Although the sensors appear aligned, their light will not stop flickering (or it could even go completely off) in the event that they aren’t.

If alignment is a problem follow these steps:

Release the wingnut near the LED light.

Make sure to turn the eye until the green LED lights cease flashing.

Make sure the wingnut is secured.

It is also possible to play around with the device until the light bulbs change to a solid green. Be careful, as you could end up damaging the bracket while doing it.

5. Photo Eyes: Bad Photo Eye

Because the photo eye is responsible for sending and receiving signals to the garage’s doors, a broken sensor will stop it from functioning.

To determine if this is the case, look at the light that the sending eye emits. If it’s flashing instead of being steady the sensor is in trouble.

If this is the case, replacement of the part is the only option to proceed.

6. The damaged photo eye wiring

The wiring inside the photo eye provides it with the power it requires to perform its job. If the wire is damaged and the sensor isn’t functioning, it won’t function.

Therefore, you have been looking out for the following signs of danger:

Cords that are corroded or frayed

Bite marks

Connections that are loose

Pinched, cracked, or damaged wire insulation

The solution to this problem can be complicated, but it can be solved. In fact, we’ve got an easy step-by-step guide to how you can replace the wiring yourself.

7. Wear and tear

The average lifespan of garage doors is about 30 years. Like all other equipment that is used, they’re susceptible to wear and wear. Since most users use them for 3-5 hours per day, they’re likely to get a bit shaky after the ten-year mark.

If your garage door sensor is at the end of its lifespan, there’s no other thing to do other than to have them replaced.

8. Electrical Components that Are Busted

If one or more of the components of your garage door’s system is broken, it won’t be able to supply energy to the sensors and allow them to function.

The most typical reason is a blowing fuse. If the current is too high over the fuse (such as in the case of lightning strikes) it causes the fuse to melt (or blast) on the sensors. The result is burning the electrical circuit, that’s a different issue.

A broken capacitor can also impact the sensors. If they’re bulging or leaky or leaking gunk out of the device, it could stop your garage door from functioning.

As fixing these parts can be tricky, it’s best to seek the help of a professional repairman/electrician.

9. Locked Garage Door Opener

Sometimes, we accidentally click on the locking button on our garage door opener. Therefore, even if your sensors are aligned and new, they’ll fail regardless of how hard you push.

To determine if this is really the issue examine the panel’s LED light. If you’re unable to see it, you may try lifting and removing the panel.

When the light on your LED is blinking this indicates that the doors are locked. Closed arrangement.

To unlock the door, all you have to do is hold for a long time, and then wait for the LED light to cease blinking. When the light turns the solid green mark, then your doors will be unlocked and the sensors are expected to begin to work normally.

10. There is no power from the outlet

Are the lights coming from an electrical outlet, the eye of the receiver, and the sending eye off?

This indicates that there isn’t any power coming into the device. One reason this occurs is that there’s no electricity coming through an electrical outlet.

It is possible to confirm this by plugging any appliance into the outlet. If they are working, the wiring or plug in your system could be experiencing issues. If not then examine the source of power.

Most of the time the reason for the power not being on is due to the switch on the breaker box, or the ground fault circuit interrupter (GFCI) has been tripped.

This could occur if you’ve used multiple appliances in one go. A lightning strike can create a surge that will trigger your breaker or GFCI.

In order to restore the power source of the garage outlet, you’ll need to turn the switch to turn it on.

11. Remote Control Problems

If you’ve tried to determine the reasons mentioned above and the sensor isn’t functioning, then your remote control might be the cause.

You can test this by closing and opening the garage door with your wall switches. If this is the case, the remote control might require a replacement battery.

However, if you’re pretty certain that the battery you purchased is new, be sure your instruction manual for operation.

Two types of batteries are commonly found on garage door openers, CR2016 as well as CR2032. They appear and feel like the other, which means there’s a chance you’ve chosen the wrong type of battery.

If none of these methods appear to be working then it could be time to have your remote evaluated, fixed, or even replaced.

In summary, as stated in Garage Door Repair Rockwall TX, a malfunctioning garage door sensor could be a hazard to safety. It is imperative that we understand the root causes. This is why I’ve put together this list of possible reasons your garage door doesn’t work and the steps you can take to fix them.

Rockwall Best Garage & Overhead Doors

Rockwall, Texas 75087

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