
What does it mean when your garage door opener is blinking?
The blinking light is meant to keep you safe by alerting you of any issues with the opener. While every opener is different, many share similar methods to determine what the real issue is. This guide will walk you through what the flashing light means, and how you can self diagnose and fix the issue with your opener.
Why is my garage door light flashing and not closing?
Garage Door Light Flashing, Won't Close When you see your garage door opener lights flashing and the garage door will not close, it could be the safety reversing sensors or the LOCK button. If there is a safety reversing sensor issue, the main light (s) flash 10 times. Start with aligning the safety sensors.
What are the symptoms of a locked garage door opener?
1 Light Blinking Continuously. If you own a new garage door opener that comes with a locking feature, it's possible someone may have accidentally locked your garage door by pressing the ... 2 LiftMaster Light Blinking. LiftMaster comes with two methods of self-diagnosis. ... 3 Chamberlain Light Blinking. ...
Are Chamberlain garage door openers the same as Liftmaster?
Chamberlain Light Blinking Chamberlain garage door openers function the same way as LiftMaster openers. Any issues regarding flashing lights and diagnosis light codes are the same for both openers.

How do I fix the blinking light on my garage door opener?
To stop the light from blinking and to ensure the remote is operable again, simply hold down the wall button for a few seconds until the lock is disengaged. Another reason that you might see a continuously blinking light on your garage door opener is due to issues with your wiring.
What does blinking light on garage opener mean?
Having your garage door light blink continuously is not only annoying, it's also a sign that there is something wrong with the mechanism. There are several reasons why your garage door opener is doing this. The two most common reasons include a problem with the lock button and malfunctioning safety reversing sensors.
How do you reset the light on a liftmaster garage door opener?
Resetting a Liftmaster Garage Door RemotePush the button on the remote.Press the button located on the motor.Hold the buttons until the light on the garage door opener flashes, indicating the system has been reset.
Why is my garage door not closing and light flashing?
When you see your garage door opener lights flashing and the garage door will not close, it could be the safety reversing sensors or the LOCK button. If there is a safety reversing sensor issue, the main light(s) flash 10 times. Start with aligning the safety sensors.
Why is the yellow light blinking on my garage door opener?
A yellow light on your garage door sensor indicates that your safety reverse sensors are out of alignment. Your garage door will not close until they are fixed. Start by cleaning the lenses on both sensors and then adjust each sensor so that they line up perfectly with one-another.
Will unplugging a garage door opener reset it?
The first thing you will likely need to do in order to reset your garage door is to unplug it or shut off the breaker that it is connected to. This will shut off power to the door entirely. From there, you should wait at least ten seconds before turning the power to the door itself back on.
How do you change the battery in a LiftMaster garage door opener?
0:150:50How to Change the Battery in Your LiftMaster Remote Control - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd set it aside insert the new battery in your remote control make sure the battery is positiveMoreAnd set it aside insert the new battery in your remote control make sure the battery is positive side up snap. The case back together be sure to dispose of the old battery properly.
Why is my LiftMaster garage door opener not working?
Common reasons your garage door opener may not be working properly: The batteries in the remote control need to be replaced. The door needs lubrication. The safety sensors are out of alignment.
What does it mean when your garage door light blinks 3 times?
Three flashes mean the wire or door control is shorted. Check the door control wires like you did the safety sensor wires. Another tip is to touch the control wires together, after disconnecting them.
How do you reset garage door sensors?
2:3910:19Garage Door Safety Sensors Troubleshooting - Complete 3 Step ...YouTubeStart of suggested clipEnd of suggested clipSo all you have to do is loosen up the wing nut. Here. And position the sensor. So that it isMoreSo all you have to do is loosen up the wing nut. Here. And position the sensor. So that it is pointed to the other.
How do I reset my garage door?
0:000:55Home Repair and Maintenance - How To Reset A Garage Door OpenerYouTubeStart of suggested clipEnd of suggested clipAnd press and hold the enter button. The main drive unit should give you some indication that it'sMoreAnd press and hold the enter button. The main drive unit should give you some indication that it's reset. So now all that's left to do is try your new code. Now remember to stay clear of the doors.
What does two blinks indicate on a garage sensor problem?
Two flashes indicate that your sensor wire is either shorted or the black and white wires could be reversed. In both cases, your safety eyes will not glow steadily. You should inspect the wiring for any staples or incorrect wiring.
Why does my garage door light flash?
When you see your garage door opener lights flashing and the garage door will not close, it could be the safety reversing sensors or the LOCK button. If there is a safety reversing sensor issue, the main light (s) flash 10 times. Start with aligning the safety sensors.
What does it mean when the garage door control is on?
If your door control has a LOCK button, it may have been turned on. When the LOCK button is ON, the garage door opener will work from the door control but the remote controls are locked out.
How to unlock a door lock?
Unlock the LOCK Button 1 Press the LOCK button to turn this feature off. The light will flash two times. 2 Press the remote control. If the door closes, your issue is solved.
How to tighten a sensor?
Loosen the wing nut on the front of the sensor, align the sensor so the lenses are pointing at each other. When the sensor LED glows steadily, tighten the wing nut.
How many times does the light on a sandbox flash?
Press the LOCK button to turn this feature off. The light will flash two times.
Can a green light block infrared light?
The sunlight shining into the receiving sensor (green LED), can block the infrared light from the sending eye (amber LED). Check out the article on Sun light interference with safety sensors for steps to resolve this issue.
Why does my garage door light blink?
Light Blinking Continuously. If you own a new garage door opener that comes with a locking feature, it's possible someone may have accidentally locked your garage door by pressing the lock button. If you try to open your door using a remote while the lock system is engaged , you’ll notice that the garage door light will begin blinking continuously.
Where is the LED light on a garage door opener?
A garage door opener comes with an LED light indicator that is located on the back or bottom panel of the opener or underneath one of the light lenses if your opener has dual lights. This LED light flashes a specific number of times.
How to fix a misaligned garage door light?
To fix this issue, first, locate the two photo eyes attached to your garage door and clean the lens using a soft microfiber cloth. Loosen the wing nut holding up the photo eye and adjust them until both sensors are properly aligned. The photo eye with the amber light sends out the light, while the green sensor is the receiver. If aligned correctly, the green sensor will remain on and glow steadily.
What happens if the door opener does not close?
If the opener cannot detect that the safety sensors are properly working or connected, then the opener lights will flash and the door will refuse to close. You’ll need to hire a professional to replace the wiring entirely or check to see if the wire disconnected from the opener and reconnect it.
What is the number to call for garage door repair?
Contact Garage Door Medics today by calling 888-997-2423 so that we can diagnose your issue and get your garage door back up and running. We are garage door opener repair and replacement experts so we can get the job done for you today! Areas we serve: Southern California, Phoenix, Dallas-Fort Worth, Boise, Denver.
How to tell if Liftmaster is self diagnosing?
LiftMaster comes with two methods of self-diagnosis. One is the arrow keys found on the opener and the second is through the small LED light located next to the learn button. The amount of times they flash corresponds to a specific opener issue. Below is a diagnostic chart showing the common light code for the arrow keys.
Which brand of openers use self diagnostic light?
Other opener brands such as Craftsman and Raynor also use a self-diagnosis LED light indicator with the same light codes as both LiftMaster and Chamberlain.
Why does my garage door light blink 10 times?
If you push the garage door opener switch when the sensors are obstructed or not aligned properly, your garage door will reverse, and the lights will blink 10 times. If you notice this happen, start by seeing if anything is obstructing the sensors field of view. If this is not the issue, then your sensors will probably need to be aligned.
What to do if garage door is blinking?
If your garage door opener is still blinking, try realigning the safety reversing sensors. Once you know that the lock button is not the issue, you’ll want to check to see if anything is obstructing the sensors, or if the sensors need to be realigned. If you push the garage door opener switch when the sensors are obstructed or not aligned properly, ...
What does it mean when your garage door sensor is off?
If you see that the sender sensor is not yellow and the receiver sensor is not green, then this means that your sensors are probably off.
Why does my circuit board blink?
Circuit board blinks once: Sensor wires are disconnected. Circuit board blinks twice: Sensor wires have been shorted. Circuit board blinks a third time: The sensors are misaligned. Now, if you own a newer model with an arrow light for both up and down, you’ll want to use the information below to detect the issue:
What does it mean when your receiver sensor is not green?
If you see that the sender sensor is not yellow and the receiver sensor is not green, then this means that your sensors are probably off. For all other models, you’ll want to read the owner’s manual, but once you know that your sensors are off, you’ll need to realign them. Follow the directs below.
How high should a garage floor sensor be?
After you have located these sensors, equip yourself with either a measuring tape or a ruler. Your sensors should be positioned 6 inches above the garage floor.
Where is the circuit board on a garage door opener?
Many garage door openers will also have a circuit board located on the back of the motor.
