Garage Door Opener Sensors

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Garage Door Opener Sensors

Garage door sensors are an essential part of an automated garage door door opener. Thus increasing your house’s security is only a fantastic idea. When your Liftmaster garage door opener safety sensors fail, it is best to call the experts to diagnose the problem to avoid all the guess work from your part.

In fact, the majority of complaints in connection with garage doors are associated with photo-eye safety sensors.

The very first thing that you want to check for may not be a malfunction in any way, but the security eye merely doing its job. 

Sensors Placement 

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The sensors should be placed 2 inches above the ground. In the event of the former, you want to reinstall the sensor to make certain that it’s aligned properly. You can also get a new garage door opener with new sensors.

Make certain to keep your shed and garage door away from children. For instance, a child running to win against the closing door or simply to stop a kid from being crushed by the door if it’s accidentally closed and they’re in the manner. 

If it’s the latter, you will need to locate a replacement sensor. It is advisable to look at your sensors often to make certain that they are in working order.

It’s mandatory that all automated door openers ought to be equipped with a non-contact invisible beam system which can sense the approach of someone and create the door to reverse back to the open position. 

Contact Your Garage Door Opener Brand

Garage door openers are supplied with unique kinds of warranties. The principal step in buying a garage door opener is to find out the true drive system. There are several things that can make a garage door opener to malfunction. 

The manufacture company has customer support to assist you on fixing your opener sensors.

Garage storage also needs to be avoided since they are inclined to be damp which will adversely influence how your sensors work. If it will not open at all, you may not have the ability to get the household cars and truck out. The front door is among the most heavily used components. 

There are lots of possibilities as soon as it comes to a particular choice. Test the garage door opener and see whether the issue is fixed. 

As the case could be, a lot of people are currently using them in their household regardless of the costs.

Garage door opener won’t work without safety sensors

There is no Garage door opener will not work with out safety sensors. Garage door Openers manufactured after 1993 are not capable to operate without sensors or if the sensors are defective or miss aligned. We had a garage door business where we would not be allowed legally to install the sensors out of the way, or where they normally go, but for our own house, we had one door that we put the sensors on top of the unit on the ceiling (shining against each other of course.) Keep in mind this is against safety building code.

We did this so that we could push the wall button and run out the door without it reversing back up. Obviously, it isn’t a practical thing to do, especially if you have children or pets, because whatever is under the door will get crushed and possibly cause death. We never would do this for a customer, but for our own door it was okay since we had no young children or pets at the time. That was years ago, now we have sensors on all of our doors.

How Garage Door Opener Sensors Work

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The garage door opener sensor receiver located close to the floor sends a special signal (by wire) to the garage door opener (and turns on a red LED at the sensor to indicate it is sending the signal). You can tell which sensors os the receiver by the green light on it in most Liftmaster and Chamberlain garage door openers. If this signal is missing, the garage door opener will refuse to close, or if the signal drops while closing the door, it will reverse and open the door.

There is a sender sensor with an amber light on it. This sensor sends the invisible light signal and as long as they communicate via this light the green light on the receiver will turn on.

The signal is a waveform about 150 Hz, normally at +5V or +6V or possibly higher, with an inverted pulse on each cycle that grounds the signal to 0V. The width of the pulse is about 0.5 millisec.

Internal to the garage door opener, there is a circuit that produces the exact same signal. It then compares its internal signal using an LM339N IC, with the incoming signal from the optical sensor, and if the two signals don’t match, it refuses to close (or reverses) the door. Thus shorting or opening or putting a sinusoidal signal on the sensor wire to the opener will not work.

Garage door opener sensors Communicate via invisible light

I’ve seen garage door openers using an safety sensor receiving a signal from a light source, such as a laser beam. I’ll base my response on an experience of a garage door controller I used when parking at work.

When the door is open the controller will runs a timer to close the door again. When the time expires and the controller wants to close the door. If the optical sensor is not receiving the light signal then it identifies that something is blocking the doorway and remains open until the signal returns. Simply covering the optical sensor on an open garage is usually enough for it to remain open.

When door closes

In the case the door starts closing because the optical sensor is receiving the light signal, and then the optical sensor is blocked from receiving receive the light source, the controller sees this as something blocking the door and opens again until the signal returns

Note that each manufacturer may use a different signalling technique. What I just describes seems to be the case for Liftmaster, Chamberlain, Sears, Craftsman and Wayne Dalton and a few compatible openers and OEMs.

Bypassing garage door opener sensors

Bypassing garage door opener sensors is against code and is not easy. You can build a circuit to emulate the signal. A signal generating chip can emulate the signal with the correct capacitors and resistors.

Or you may go to the internal opener board, find where the comparator is, and set the output pin to high (or low) pretending that the comparator has received a correct signal.

If your garage door doesn’t close because of a sensor issue this might be helpful. You should see a small color light on each one of your sensors.

Genie garage door opener sensors repair Chicago

For Genie openers a red and a green. They should both be on and solid.

If one of the light is off or blinking.

Try pointing directly to the lens of the other sensor. If you manage to get both on and solid you should be done. (They are mounted on a track) when they point at each other, green and red light should both be on.

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You can insure they are in good range by wiggling either sensor and and check if by moving it around still stays in range.(light will stay on)

The key is to have them face one another without any obstruction in between.

If this is all right and you still have problems, check wiring for staples, cuts on the wire or lose connection.

You could also have a defective sensor. At this point you might want to call an expert to replace.

Hope it helps at least one frustrated homeowner out there.

To replace them is fairly easy. All you need is a par of wire strippers and electric tape. The wires are always line color coded.

Genies brands

For genie garage door opener brands, when the infra-red sensors are malfunctioning, usually one of the sensor lights will be blinking. The problem is either due to a blocked path between the sensors, dirty eyes, loose wires at the sensors or at the motor head, or just bad sensors. The transmitters (remotes) will not work to close the garage door.

Genie makes the safety beam system very foolproof; shorting the wires to the sensor won’t work at all. The only way I could think of bypassing them is to put both sensors facing each other and mount them on the wall or somewhere near the garage door opener itself. Set the motor force to maximum if you want as well.

How do you line up safety sensors?

If you are talking about the optical sensor mounted at ankle height on most garage doors, then look for an LED on one of the sensors. If the LED is off and there are no obstructions between the “transmitter” and “receiver” that blocks the light beam then the light beam is misaligned. You can usually loosen the mounting screws on one unit and wobble it around. When the LED lights up it is aimed correctly. Tighten the screws to hold it in the proper orientation. Test it by blocking the light beam with your hand. The LED should turn off when your hand is in the way.

LED Lights

The transmitter projects a fairly wide light beam, so alignment is not exactly rocket science. If the transmitter is pointing in the general direction of the receiver lens, then you are good to go.

Note that if the wires running to the sensors are old and corroded then you have a wiring problem and not a light beam alignment problem. Wiggle the wiring connectors that hook up to the sensors. If the LEDs turn on and off then focus on fixing the wiring. You will need more specialized tools and skills to fix wiring issues that are beyond the scope of a Quora answer.

The laser sensors on my opener system are mounted on metal tabs which are built into the guide rails, placing the beam about three inches above the ground. There is no other option for mounting these sensors, and I can’t think of a reason to do it differently. A child or animal or adult would block the beam preventing operation. If the beam is not blocked and the door descends on, say, the protruding end of the vehicle, separate sensors in the drive unit stop the door and raise it again because of the increased resistance.

Garage Door Openers in Chicago | Liftmaster | Chamberlain | Genie

Chamberlain garage door opener chicago victor garage door

Are you looking for the best garage door openers in Chicago? You have come to the right place. We will show you the top brands such as Chamberlain, Liftmaster, Genie and more. Getting a new garage door opener in Chicago can be done simply and easy. Some of these samples can be install DIY if you have some medium level tools and skills.

Find the best option for you home. Sure, it can be freezing and you have to get out of your car because your opener decided to fail today. The best advise is to keep simple, keep it safe, schedule a visit your local garage door in Chicago. For general pricing in the area, scroll down.

Garage door opener in Chicago and suburbs

Call the Expert Garage Door Service in Chicago

Are you having garage door problems? Good news for you my friend, you are not alone. Chicago and the suburbs always keep garage door companies very busy. Extreme weather changes can take a toll on some of your equipment, if they are not built for this wild temperatures.

Call the experts for any type of garage door repair in Chicago and suburbs to avoid getting hurt and ensuring your system is in the most optimal conditions.

Good garage doors and openers are both low maintenance, even in this area. They open your door for 12 to 15 years every day until…one day they don’t. Join the club, we all have been there. When was the last time you had an expert to maintain or inspect your system? 10 years or more? If you answer yes, you are due. Please be thankful it lasted you this long.

We will give you some pointers if you are looking for help dealing with your garage door opener issues. In case you want to replace.

When Buying your Opener in Chicago

Look for the date your garage door opener was manufactured. It will be in the front or back by the opener light. This device will display the month and the year. It will look something like:

If your opener is 10+ years, you can still repair your gear or logic board but it’s a big investment on an old machine. You can get a brand new system for not that much more.

Alway best to replace after ten 10 for reliability. They don’t cost much for what they do and for how long they last.

What are the best brands for Chicago and Suburbs

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Liftmaster Garage Door Openers in Chicago

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Look first at the Liftmaster models. They are the number one choice among experts. There are many different options for any home.

You can get chain drive for durability, belt drive for quietness and good guaranties, and even wall mounted jack shaft to save garage overhead space.

Many styles and features for each one of us. All include Wifi connectivity to open with your iPhone form wherever you are.

Chicago weather test of time

All garage doors by liftmaster have passed the Chicago weather test. Most of them go beyond 12 years of use.

Your opener will work in extreme weather conditions. For Liftmaster opener it’s best to get from local dealer who can install it for you too.

Its a good service since all yo do is schedule, approve and pay fro the service and you are done. Most servicesc one with at least 2 year warranties.


Chamberlain garage door opener chicago victor garage door

Chamberlain is the second best option, they have similar models as Liftmaster since they share parts. They have all styles but in different colors and a different brand. This openers are also reliable online and are easy to isntall for and medium to advance DIYer.

About Chamberlain

Chamberlain Group (CGI), the corporate parent company to LiftMaster, Chamberlain, Merlin, and Grifco, designs and engineers residential garage door openers, commercial door operators, and gate entry systems.

CGI is also the parent company to Controlled Products Systems Group, the largest wholesale distributor of perimeter access control equipment in the United States.

Product Lines

  • Chamberlain — the company’s do-it-yourself line of garage door openers. Is the most DIY friendly installation.
  • LiftMaster — the company’s line of garage door openers for professional installers. You can only get a lift master through a certified garage door supplier.
  • Raynor — the company’s line of garage door openers for professional installers. Raynor is a garage door company who partnered with Chamberlain to place their logo on this precuts. This line of professional installers is slightly less common than LiftMaster.
  • Craftsman — Craftsman used Chamberlain as their garage door opener manufacturers but had switch to a different manufacturer. Re-branded Chamberlain models used to be sold at Sears. Those products have a “139” model prefix to denote that the Chamberlain Group made them for Sears.
  • Clicker — a line of universal garage door remotes.

Chamberlain, LiftMaster, and Craftsman have interchangeable parts, primarily the gear and circuit boards. The greatest difference between the brands is that Chamberlain and Craftsman operate on a split-rail system, while LiftMaster consists of one single solid piece of rail.


Genie Garage Door Openers in chicago victor garage door

Genie is our third choice for Garage Door Openers in Chicago homes. They vary slightly in features and type of drive from the previous two. This brand was popular in the past for lower price installations. I have heard people swear by Genie and its all fine until a part breaks which is no longer available and your only option is to replace the whole thing. It is still a great option since there are a lot of them working after 12 years of age.

Genie makes three types of garage door openers: belt drive, chain drive, and screw drive. Whatever type of drive you choose, a garage door openers in Chicago professionals can install it for you. Our technicians have the training and are fully qualified to install all brands of garage door openers. We also offer you the choice to select from a wide variety of garage door openers, including Genie.

Genie has been in the market of manufacturing garage door openers for 50 years. They are known in the business for providing safe and reliable garage door openers. Genie has been a leading brand for decades. There is a great number of Genie openers in Chicago still going strong.

How much does a garage door opener service cost in Chicagoland

A good garage door opener for a standard 2 car garage door in Chicago or suburbs you can buy at the store or online for about $200-$400. Then you can install it for free or pay someone about $200-$300 for the installation service.

If you hire a local company to handle it all, you pay about $400-$500 dollars for the whole service including new opener and components, installation and warranty. That is for a quality opener with basic features. If you like technology then a the ones you will love will be about $700 after all.

How does Garage Door Openers in Chicago service work?

Garage door companies in Chicago will travel to your house with a couple of option that work for your home and budget. When you schedule a visit they come and inspect your problems and offer a repair or replacement. You always have to approve before they do any work.

After they offer their options and you agree, the work is done within a couple of hours at the most. Your garage door opener is back gain for another 12 years or so in Chicago.

Come back to this blog for an updated version if you are looking for the best Garage Door Openers in Chicago.

Main Garage Door Opener Types

There are three types of garage door openers: the chain drive, belt drive and screw drive. The names refer to the different types of pulleys contained in the motor of the garage door opener that moves a trolley back and forth on a track, enabling the opening and closing of your garage door. A power unit is attached to the track.

There are other components of a garage door opener. There is a quick release mechanism that is used during emergencies or power failures and signal sensors connected to access devices and receivers. 

Garage Door Opener Repair in Chicago

Get a garage door opener repair in Chicago if your opener is 10 years or newer. A garage door opener is an important feature of any garage door system; the opener serves as the control mechanism for opening and closing it and providing security for your home and garage. A garage door opener is a motorized, complex mechanism connected to a switch on the garage wall or operated by remote control.

Garage Door Opener Repair – Safety Sensors

Sensor repair victor service

What is a garage door opener repair Safety Sensors? This is when you notice your garage door won’t close all the way and your opener blinks 10 times. 

Normally a simple adjustment of your sensors position can solve your problem. The fastest way to know if your sensors are positioned correctly is to see if you have a green light on one of your sensors. 

There are 2 sensors, one on each side of the door. One of the sensors has an amber light and the other green. The sensors with the amber light is always on. On the other hand, green light on the second sensors only turns on when they are both aligned. 

You can simple wiggle your green light sensor to position where the light stays on.

Garage Door Opener Repair Gear and Sprocket

For your garage door opener repair when your gear and sprocket fails o breaks call the experts to get it done the same day.

When you hear a hum or your operator working but the chain won’t move the door, your gear and sprocket may need a repair.

Garage Door Opener Repair Chain- Garage Door Openers in Chicago

When your chain breaks on your garage door opener and don’t know who to call, trust the experts from Victor Garage Door. We carry all major brands of garage door openers and have a solution for you. Since we carry the necessary parts we can get your chain repair done the same day.

victor repair

Garage Door Opener Manual Release

This manual release mechanism is helpful in case the power goes out and your car is in your garage. All you have to do is pull the red cord hanging from the opener rail and the door will disconnect from your opener. This will allow your to open your door manually until power comes back.

At the same time, it includes a complicated assembly connected to a power unit.

Best garage door opener Videos from youtube

Overall, repairing a faulty garage door opener is not a job for an amateur or faint-of-heart. Its very complex mechanism requires expert servicing.

That is why, we offer you our A1 Garage Door Service to repair your faulty opener in no time.