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How to Fix a Garage Door Opener that Won't Close the Door: Lights Blink 10 Times
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- čas přidán 24. 05. 2016
- This #diy video shows how to #diagnose and #repair a garage door opener that won't close the door and the lights blink 10 times.
Read the article that matches this video here: www.searspartsdirect.com/diy/...
Have your garage door opener repaired by a Sears Technician. Visit our Sears Home Services website to schedule garage door opener service.
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If your garage door opener won’t open, and the motor unit lights blink 10 times, the problem is probably the safety sensors. The blinking opener lights mean that the safety sensors are likely blocked or out of alignment. Defective safety sensors or faulty sensor wiring also cause the opener lights to blink 10 times.
1. Look for obstructions
First, look for an item blocking the door sensor and remove it.
2. Check sensor alignment
You may have bumped a sensor out of position. Each safety sensor has an indicator light. Check that the sending sensor’s yellow light is on and then check the green light on the receiving sensor. If the green light is off, realign the safety sensors until the green light turns on, and then try closing the door.
3. Check for error codes
If any sensor lights doesn’t come on, check the LED troubleshooting light on the motor unit for an error code. The control inside the motor unit flashes the troubleshooting LED a number of times to indicate the cause of a failure.
You may see one of these error codes related to the safety sensors on a common chain-drive garage door opener:
• 1 blink: Sensor wires are disconnected.
• 2 blinks: Sensor wires are shorted.
• 4 blinks: Sensor eyes are slightly misaligned.
A belt-drive garage door opener and some newer chain drive models flash the up and down arrows to display error codes. Here's a list of error codes related to the sensors on these models:
• Up 1 blink, down 1 blink: Sensors are not installed or wires are broken
• Up 1 blink, down 2 blinks: Wires are shorted or reversed
• Up 1 blink, down 4 blinks: Misaligned or obstructed sensor
• Up 4 blinks, down 6 blinks: Sensors were temporarily obstructed or misaligned.
4. Check the wiring
If you see one of the first two error codes, check the wiring between your motor unit and the sensors for visible damage. You won't be able to check all the wiring if it's routed through the walls to the sensors. Check the wires that you can see and repair any broken or damaged wiring.
5. Check the connections
A loose wiring connection could prevent the garage door opener from closing the door, causing an error code. Check the safety sensor wiring connections on the motor unit. Reconnect any loose wires.
Make sure that you have the sensor wires connected to the motor unit correctly. You should see the white wires twisted together and inserted into the white terminal on the motor unit. The white wires with black stripes go into the gray terminal. Connect the wires correctly if you find them reversed.
6. Test your safety sensors directly at the motor unit
Test sending sensor first. Remove the sending safety sensor with the yellow light from its door rail bracket. Disconnect or cut the sensor wire about 1 foot from the end. The sensor wire has 2 strands. Separate the strands and strip 1/2-inch of insulation from the end of each strand. Disconnect the existing safety sensor wires from the motor unit. Connect the short, white wire strand to the white motor unit terminal. Connect the other wire strand to the gray terminal. Check the yellow light on the sending safety sensor. If the yellow light turns on, the sending sensor is okay. If the yellow light doesn't turn on, you’ve confirmed that the safety sensors are defective. Here’s a link to a video that that will show you how to replace them. • Replacing the Safety S...
If the sending sensor is okay, test the receiving sensor. Remove the receiving sensor and cut the wire about 1 foot from the sensor end. Separate the sensor wire strands and strip 1/2-inch of insulation. Disconnect the sending sensor wires from the motor unit terminals and twist the white strands with black stripes together.
Repeat the process to connect the white sending and receiving sensor wire strands together. Connect the white wire strands to the white motor unit terminal and the white and black strands to the gray motor unit terminal. Hold the sensor eyes directly together and check the lights. If one or both of the lights fail to turn on, replace the safety sensors. If both lights turn on, press the remote button. If the door closes, the safety sensors are okay.
7. Fix the wiring.
If you've eliminated the sensors, the problem is a break in the wiring. Here’s a link to some replacement wiring that you can use to resolve the problem. • How to Repair Broken o...
I know this video is 7 years old but it just helped me now in May 2023! My husband and son were cleaning the garage last night and this morning I could open the garage door but not close it. I knew it has something to do with the safety sensors, and like not even a minute after the watching the video, I found the solution! One of them knocked the sensor out of alignment and it was literally a 5 second fix! So thanks!!
This is, without a doubt, the very best CZcams video I've ever watched! Thanks Wayne for your outstanding work!
The technician was like a skilled mercenary of electrical garage terminology. One shot one kill.....basic and disciplined about the task at hand and showing the next mercenary.
I didn’t know about those sender/receiver lights - thank you! I was stumped for awhile because my garage door would only start closing for about a foot, then stop, and reverse. Could not figure out what the obstruction was. The answer: sprayed silicone lubricant on all the rollers, plus all the section hinges along the width of the door. Presto! Must be our harsh Canadian winters playing a role here; perhaps one or more hinges had some slight corrosion inside causing it/them to bind a bit. The door opener would sense the extra resistance while closing so would stop and reverse.
Well done. The ONLY garage door fix video you will ever need. Easy the understand and well presented. Thank you
THANK YOU SO MUCH FOR THIS HELPFUL HINT!!!!! I went out to the garage and readjusted the green light sensor because it was visually crooked. I then tried the door switch again, and it worked!!!! CZcams is amazing for DIY repairs and projects. God bless. 😆
Systematic, methodical and comprehensive troubleshooting - exactly what I needed to see to finally solve the riddle of the inoperative sensor - thanks! In my case, it turned out that I jarred one of the leads loose in the control box while fiddling around installing a new battery and just needed to tease it back in. D'oh!
I just saw this video and I think it explains my issue. I will go check the sensor alignment and see if that fixes the problem.
Thank you SO MUCH! 6:30 am, need to get to work and this is exactly what happened to me. Nothing was blocking the sensors, but they were out of alignment. You saved me!
Thank you! This video helped me today 3/17/24 diagnosis my door issue. I've been fighting with it for more than a week now.
Man, I was about to descend into the third level of hell but then I watched 32 seconds of this video. Thanks!
😭😭
I’ve been there
Same story. A hoe had fallen in front of the sensor and obstructed the path. This video quickly diagnosed the problem.
lol...me too. it was my sensors
Bless you!!
THANK YOU THANK YOU THANK YOU! I'm not very mechanically-inclined (at all), but this video helped me to figure out and FIX what was wrong with my door. Thanks so much, Wayne, for making this so simple.
The host is my hero. Saved me a service call for a misaligned safety sensor. A look at the motor unit LED blink code confirmed the issue.
"Realign sensors until the receiving sensor light turns green" was my fix. TYVM!
This is a great video and it saved me an unnecessary service call. The issues were clearly with the sensors, which I thought I was going to have to get replaced, until I saw the Learn lights blinking codes about a third of the way in your video. Just first looking at the sensor wires seated right above Learn button showed that a gentle wiggle would cause the source sensor to turn on and off and the blinking phase to change. By just re-securing those wires, the wife was once again happy that the door worked perfectly again. Thanks Wayne and Sears Parts Direct for these helpful videos!
My sensor light was misaligned, this video fixed my problem! THANKS...
Thank you SO MUCH. Your video solved our problem without a service call. I was able to fix our garage door in two minutes (sensors were mis-aligned slightly.... I counted the ten flashing lights and - boom! I am brilliant!). Such a great service you provided :D
This video helped narrow down my issue so I could figure out I had a bad wire. Thank you very much!
Let me tell you something mr. You probably saved me so much frustration with just the first 30 seconds of this video! Im such a dummy i failed to see some leaves blocking the sensor!!! I am so relieved! All credit goes to this man in the video! You're my herooo!
4 blinks??? YES!!! FIXED!!! I never knew about the CODE light. It seemed like my sensors were aligned, but upon closer look there was a almost imperceptible blink on the green light.
I adjusted BOTH sensors and the door now works! I’ve wasted days messing around with the door, but your video SAVED me!!! Thanks so much.
What a fantastic video - short and to the point! This guy did a great job presenting, his tone is perfect.
I got laid off from my job, my partner's cancer may be back, then our AC went out in the middle of a texas summer, and THEN the garage door wouldn't close 😭 when it rains, my friends.
This video was a godsend. We had two things happen simultaneously. First, my partner pulled the string to try to raise the door manually and didnt click it back into place. All it took was me pushing the door up till i heard the click. Second, i must have bumped the sensor putting away the lawnmower and it was just barely out of alignment. Thank you for this video 🙏 one minute in and it saved me from literally pulling out my hair today
Thank you so much, you have no idea how much that did for me. Trying to learn how to take care of things since my husband passed. God bless you and keep you.
THANK YOU. Just bought our first home and the garage quit opening 2 days ago. Went to check the sensors after watching your vid this morning, and lo and behold…a grasshopper had gotten himself stuck in spiderweb, DIRECTLY on top of the yellow sensor eye!! Helped him get free and he launched off like a bat outta hell. Tada, door fixed 🤣
Uh - I love you and thank you for saving me from freaking out! Totally fixed!
June 12/2024.... I had been battling my garage door for over a week! Wouldnt close unless you stood at the mounted button and pressed the button the entire time until the door reached the bottom - Thank you for this video!!! Helped me fixed it in just a few mins!!
THANK YOU! I just fixed my garage door opener with your help. I'd never noticed those lights, but one was out; just had to adjust a wire and it was all good!
This video saved my untold money. My receiving sensor was not functioning. Bought a pair of used replacement sensors on the interwebs.
Thank you for this video!! Was stressed for 2 days with my garage door not closing and being left open a few inches. Such an easy fix
Thank you!! This saved our life on the day of a move out where the movers must have hit the sensors out of alignment. You are my hero!!
Thank you so much. This video was really helpful. My garage door wouldn't close and kept blinking. I thought was going to have to spend money to get it fixed. Realigned my sensor and I'm back in business.
Great video. Very complete, informative and easy to understand with great examples. I fixed my misaligned sensors and now my garage opener is working again. Thanks Wayne.
I’ll with you.
Your video helped me out with my garage door opener issues which was driving me nuts at first lol.
Thanks for a awesome clear cut trouble shooting video.
Thank you so much, I didn't even watch the whole video and I fixed my issues, may God bless you!
Thanks, this helped me with my Old Sears garage door opener Model HEMO 7777. it turned out it was a loose wire. I was told I needed a new garage door opener. They wanted about 1800.00 to do the job. So I looked into it myself scratched my head, got on CZcams and found you and wham bam thank you, ma'am, got it going in 15 mins. Thanks!
Thank you so much. Both safety lights were glowing. I cleaned them and this worked. Thank you again
Best, most informative video out there for trouble shooting when a garage door doesn’t shut. Thank you for sharing!
Ok, this guy is highly informative and his tone is slightly sarcastic. I love it. Thank you.
Exactly. He was a very helpful unc.
@@jonwaynem oh no. did he pass away?
LOL not that I know of! I just mean was as in past tense of making his video 😂
PERFECT! Thank You!! I fix the problem RIGHT AWAY with your help. Mis-aligned safety sensors!
Thank you Wayne and SEARS PartsDirect!
Thanks so much for this video! Removing the sender unit and directly connecting it to the motor unit confirmed the sender wasn’t defective as I thought. Indeed a broken wire near the sender connection was the culprit and being forced to cut the wires to test the sender isolated where the break in the wire was. I struggled with diagnosing the problem for a couple of hours on my own instead of starting with this video. More than one lesson learned as a result.
Excellent video. I was able to fix my problem in less than two minutes after watching this video. Thanks so much, great job!!
Thanks Wayne, this was exactly what my issue was. Thank you for your help. You saved me $69.95.
Amazingly helpful video!! Thank you!! I got the green light to come back on but it still didn't work. Checked the light near the motor. 4 blinks = slightly misaligned. Adjusted a little more and I was back in business!!!
Can't believe it was such a simple fix. You're a doll. Thank you!
Thank you, for the great video. Really helped us out a lot. God bless you!
Thank you Wise Beard Garage Door Man. Bad wiring between motor and sensors apparently. I have them plugged directly into the motor and taped them to the side of the motor until i can rewire the full length
Best Video EVER....so thorough, thank you
WOW, thanks for posting this video. Lots of tips on fixing shorts in garage door system due to bad wire connections, fixing and adjusting light sensors, all good stuff. Will try to determine why my remote clicker won't close the door. It opens door fine, but does not close the door. thanks!!
Thanks, found sensor bad wiring on new garage door opener. You saved me time & money.
Thank You very much. Brushing away dirt and dust moved my yellow sensor. Now I know to be more careful when cleaning my garage.
thanks! this helped me diagnose sensors slightly out of alignment.
Thank you so much. The first one was my problem. The green light wasn’t on. I just adjusted it and it worked.
WOW! Thank you. The sensors were blocked! I moved the item problem solved. :)
Thank you. I tested my sensor and it worked. Later, I found the problem which was a bad connection. Door opens and closes with any problems. Thanks for sharing!
Very well demonstrated. Simple and to the point.
Thanks, I had a similar problem and your video helped me to fix it.
This video helped me fix my garage door issue. The screw holding the safety sensor had come loose and the sensor was no longer aligned.
Realigning and seeing the green LED light fixed the issue.
Thank you!
Thank you so much, I’m from SAUDIA and you help me solving my problem, thanks,
this problem was driving me crazy , thanks to you it's now fixed.
We had a power outage and had to open the door manually. After the power was restored, the door garage door wouldn't close. It WAS the sensor light wiring. It somehow disconnected when manually opening the door. The wiring only needed to be reconnected. Very easy. Thanks man! This helped .
Thanks, it helped a lot! I was able to troubleshoot successfully.
Excellent video! Allowed me to fix my garage door issue without having to call a handyman (my sensors were just out of alignment).
This is the first video we’ve found that clearly explain the problem and potential solution.
Awesome help, was able to find and fix the problem in a couple of minutes after watching this video. Looked at other "helpful sources" that talked about many issues but never explained the alignment lights on the sensors.
Thank you so much for this video. It was helpful. I had call a company that said my circuit was fried and I needed to change the whole thing and it was going to cost up to $800. After watching your video, I was able to troubleshoot and have an idea of the problem. I was not confident to repair the wire, but I sounded knowledgeable when talking to the next contractor. The guy did exactly what you suggested. And it worked. Thank you for saving me a lot of money.
You are a gentleman and a saint. Thank you for the help!God bless!
Helpful video. I couldn't close the garage door. The info on sensor light yellow and green was helpful. I found the sensor with the yellow light off. Fixed the power issue, and I was able to close the garage door. Thank you!
Very informative. Thank you for this video!
Awesome video. A little too much for me to deal with but great , clear info. Thanks!
Excellent video! Although my green sensor was glowing, upon closer inspection it had a slight flicker. Loosened the wingnut and realigning the receiving sensor took care of my issue !! Many thanks sir !!!
This comment saved me. Thanks! Had a slight flicker I didn’t notice.
Brilliant video. It solved my problem. Thanks, Wayne!
Thanks much for the video. I was able to pinpoint the problem and fix it. Great job
Thanks for the video. It solved a problem I had about the alignment.
Thank you for the video! I've just fixed my door.
Good Video - covers all of the major areas of Diagnostics...most importantly...it helped me solve my issue!!
This was big help since my door was not working and I did not see any reference to 10 blinks in the manual. It covered primarily 1 thru 6 blinks, and I had ten. . Everything else looked right, so I cleaned the lens on the safety sensors and Bingo! back in business. Thx again.
Thank you for this. It was very informational. My sensor wires were lose and this video helped me find and fix my issue. My wife is very happy now haha!
This video saved me so much trouble. Was working with Chamberlain Whisper
Exactly the information I needed! Thank you so much!!
HUGE help--thank you!!
This was perfect , exactly what I needed to solve this irksome issue. Thank you!
Thank you, great video and well done.
This country boy got me back in business. Thank you sir. This video really helped
Just what I needed, thank you!
Thank you! You helped me pinpoint the cause of the issue.
FANTASTIC, THIS GUY IS AWESOME. HALF WAY THROUGH HE ADDRESSED MY PROBLEM AND I SAVED GETTING A NEW UNIT. THX, THX, THX
We're glad to hear that you fixed that problem and that our video helped. Thanks for letting us know.
Thank you for helping us out. Found one of my wires has a welding BB on it and that must of caused a problem with the current. A new subscriber was just added!!!
Thanks for letting us know what you found. We're glad to hear that our video helped you out.
Fantastic help! Thank you for making and posting this video!
You nailed it with this video and I was able to fix my garage door....Thank you
I fixed the issue after watching your video. Thank you sir!
Well, this solved my problem. I can't believe I didn't think of aligning the sensor. One of them got bumped; when I adjusted it, the lights turned green. Now it's good to go. Thanks for the video!
Thank you, that was helpful!
now I found right video
THANK YOU SO MUCH I fixed my problem
Thank you very much for sharing the knowledge. It helps me tremendously.
Thanks man, I fixed ours in 2 min after this video
Thank you this video helped me solve my problem.
Awesome video. Informative and methodical. Thank you very much!
Thanks so much for the video. My garage sensors were having the alignment issue and I got it fixed. Problem solved! (thumbsup)
Mohammad Mehdi Naqvi Thank you very much Sr. I fixed my problem in just seconds!
I agree with everyone. This is an easy to follow and supremely helpful video. I fixed my garage opener.