New Chamberlin Garage Door Opener Will Not Open / Flashes 2 Times 

I wish you a happy and healthy life for posting this.

Thank you for this video. I had this problem after the internet connection was lost while the door was closed. This reset process returned the unit to working properly. Saved me a service call to a garage door company.

Thank you! No paper instructions anymore just an hour wasted on their website with no mention of setting the limits. Found your video and was done in 2 minutes

This did the trick. There is nothing in my instructions telling me to do that. So happy I found you. Thank you very much!

You sir are a life true saver. Just spent a little over 2.5 hours installing a new Chamberlain GD opener today, when I then clicked the remote, and nothing happened except for a few click-sounds and the light blinking twice. After double & triple checking the wiring and still getting the same results of it not working, I was literally 5-minutes away from tearing it all down in order to return the GD-Opener back to Lowes. But just before doing so, I saw this video you posted, and low and behold, my new G-Door opener is working like a charm and perfectly now due to your prescribed fix... So, many-many thanks for posting your above video as it saved me from quite a bit of frustration of having to tear it all down and return it to Lowes, as I originally thought it was due to a start capacitor being fried. Thank you again, sir... Now my Sunday afternoon is free & open to happily go swimming with my wife instead.

Thank you so much for this video. I just installed a brand new chamberlain add struggled with it for hours. All of their support pointed towards wiring problems or sensor issues. You solved it in 5 minutes!

Wow, I was having the same freaking problem, changed out sensors and rewired the whole thing and kept getting the blinking lights. This video was very helpful and I an now shaking my head at chamberlain for not even mentioning this anywhere in the instructions. How hard is it to have soemone write detailed instructions for stuff like this. Thanks fot the video.

You saved me. After giving up and looking to pay to have a technician come out, and after watching 50 videos waste my time, you showed me how o fix my problem. THANK YOU !!!!!

You are a heck of a fellow... Worked for 2 hours and directions were no good at all... Thank you kind Sir!!!!!

Got a new Craftsman garage door opener that was doing the same thing, tried this and it worked! Thank you for making a video about this. Most forums were saying something might be wrong with the logic board and as you mentioned the book does not cover this for troubleshooting. Saved me the headache of dismantling it and taking it back to the store for a replacement.

Great video my friend. You helped me a million with your great explanations. I programmed my garage door opener in 2 minutes after watching your video.

After messing around with the garage door, I was having this issuing. Thank you for the help, saved 80 bucks an hour.

Worked out Great!!!! Like the other person said....no answers anywhere. Thank you so much! Now my wife will have her garage door opener working on Christmas!

My garage door button was just clicking had no idea how to fix it. Was about to return the garage door opener. I came across this video and it was exactly the fix it needed! Thanks we’ll done

Thank you SO much for this video! I was stuck with no answer considering paying somebody to trouble shoot my install. This solved my problem! Now my new Garage door opener works perfectly!

Thank you sir for your video and information! I've just installed a new replacement Chamberlain Garage Door Opener and was the unit was not functional. I received several misaligned sensor errors even though I the online manual and ran several tests. I checked to see if the unit was in a bind and repositioned each sensor then wired them directly to the unit. This drove me nuts. After several hours, I initiated a virtual chat trying to find out an answer to my issue. I told them I was going to return the unit but they (Chamberlain) didn't care. I searched too many to count RU-vid videos until I ran across yours. Again Thank you sir!😄

I was looking at a lots of videos here but no body gave me a good explanation for my garage door problem. Thank you very much for your excellent video!!

This video was very helpful. Thank you! I was not the one to install the unit so had to figure out what was the problem. After playing with the buttons and googling for about hour and half I was about to give up and probably pay a technician few hundred dollars to fix a simple issue. Google would only tell you that the wiring might be shorted and/or reversed. But wires were correct and problem persisted. Until I came across this informative video. I highly recommend subscribing to this channel.

Thank you for this video. I was having the same EXACT issue. Thought I bought a garage door with a bad motor. You saved me money from having an overhead garage door company coming out to help troubleshoot the issue. Thank you, thank you, thank you!

You're the best! Was at my wits end trying to figure out why my door wouldn't open after getting a new modem and router. Thank you!

Thank you so much. I checked everything multiple times. The troubleshooting online and manual was useless. Greatly appreciated your informative video! Great job thanks again! Every is working great.

Just bought this model brand new. I shared the same frustration as the rest. I've built entire recording studios, guitars rewired and installed many household items, but this damn thing made me question my skills. I rewired and tested 3 different times with the same result. NO motor and 2 light flashes. Sensors were lined up perfectly, even used a laser to line up the track and the wiring. Still nothing. WHY IS THIS STEP NOT IN THE MANUAL ??? I think Chamberlain should put a link to your channel in their manual! Dude, thank you very much for the pro tip! I was about to take it down.

Thanks dude! The instructions for this section of the setup were confusing. Great help!

You are a god send!! Thank you for saving me and my dad hours of frustration. This worked perfectly!!!

Thank you so much for providing a simple fix to the two light blinking problem. I watched a number of different videos before coming across yours and it was the only one that actually fixed the problem. I don't have the garage door opener that you talked about, mine is a LiftMaster but it still resolved the issue. Thank you very much!

Its really work for me. My sensor was out of each other. Chamberlain should pay you Brother

I used this concept & it fixed the issue, when I hit the button, the UP arrow lit up... (I had to hit the button again to swap it to program the bottom button) then hit it again after I programmed the bottom button. Model B4505T Thanks so much for the video

Thank you for this video, just installed a new unit today and couldn't get any support from chambelain. This solved all my issues, thank you so much.

You're a life saver! Thank you.

You are a hero. God bless you sir

Thank you! I had everything wired and it wasn’t working. I did not see this in the booklet. Appreciate you posting this!

Dude, you saved me a lot of headache. This instantly worked. Bought and installed would not work, solid colors on the sensors. I did not have an installation manual with, very frustrating. I was literally going to return until I saw this.

Thank you so much!!! Single mom and you helped me save money quick and easy instructions thank you so so so much

THANK YOU!!!! for this info I've been fighting this for hours and your advice fixed it...Much appreciated

Tremendous video! I thought I was going nuts trying to figure out what I wired incorrectly. Thanks for a clear and to the point video that will spare many a lot of frustration. Too bad Chamberlain didn't bother to mention any of this in their installation guide.

Awesome because I did an install and couldn’t figure out what the issue was. Now I know thanks a bunch

Thank you for this video! You saved me from this exact problem! Well done!

Thank you! Everywhere I checked, two flashes was listed as: Locked or misaligned sensor, even the MyQ app listed the diagnosis as "misaligned senor" . I spend hours messing with the sensor alignment. After watching your video I was able to resolve my issue in 10 minutes; I just needed to program the up/down travel. It would be great if Chamberlin had a different error code "Flash" for this issue.

Bro, you are a lifesaver. Thank you very much this totally helped.

Thanks so much! We were having the same problem.

Excellent! YOU solved the problem! THANKS.

Thank you Get It Done! I was pulling my hair out after installing everything, because the sensors looked right, but door still wouldn't open. My openers didn't come with instructions. I'm sure they're available online, but you saved me a ton of time! Did what you did and my garage door is working as it should. Thanks again for taking the time to post!

Awesome instructions, very helpful

You’re a lifesaver!!! Thank you good sir!

Just helped me. Thanks a lot!!

Thanks so much for this video, worked perfectly!

Thank you!😊

Big thanks!!

Thank you!! It just help me right now🙏🏼🙏🏼

Thank you! Fixed my problem.

Thank you, you saved me from calling chamberlain to ask to replace my logic board

It worked!!! Thank you!

Thank you good man!

it helped.👍seems this issue must be addressed in chamberlain manual.

I was lubricating the chain this morning and it stopped working. The door is closed now; I’ve followed these instructions and still nothing. It blinks twice weather im pressing the remote or the door switch and still nothing. Any ideas?

Thank you. I could not find this information in the set-up manual. Or, I missed it. I was stumped. I was about ready to purchase new reverse sensors; thought I shorted one out.

Thank you, that worked.

You are my hero! This was my problem, and ZERO info on the chamerlain site or manual.

Thanks!

thank you

Just to clarify your instructions. Just pressing the arrows did not work on the units I installed. Once the up arrow is pressed and the door rises to clear the door opening, the middle (black/blue) must be pressed to save the setting. Then the down arrow will flash and you set the closing travel distance. Once complete, push the middle (black/blue) button again to save that setting. Then the lights will flash, the unit clicks and after a short interval, the door will automatically travel back up and down. I also try to set the door travel after the sensors are working. Some of door issues might be due to faulty wiring. There are also special shielded LED bulbs which do not interfere with the opener’s radio signals. I noticed you didn’t use those bulbs. Problems from interference might arise with remotes, though incandescent bulbs are a bigger problem for those remotes. Doors need to be balanced too before an opener can be installed. To test for balance the door should hang suspended when it is about 40% open but detached from the opener mechanism. I have run into issues with logic boards inhibiting door performance, but found Chamberlain live operators to be very helpful resolving the problem.

This video was very helpful thank for making this an easy fix considering tech support is AI now

Man, you saved me a major headache...none of this is in the owners manual!!!

Thanks

Hi what if the door does not respond at all for the up and down button

Just a note because it took me a few tries - mine acted like there was a min / max range, meaning there seems to be a programmed maximum distance for both Down and Up. If I was at the maximum down and tried to push the down button, it wouldn't go any further. Solution was to move to the maximum "down", then reset the process again, and then set the "up". Basically once I figured out what was going on I had to cycle it twice. Thanks for the video and I also sent along a super thanks because you probably saved me ~$150 minimum.

I have rhe same situation but pushing the button did not assist or remedy rhe problem?🤨

Hi there! Our garage door is Chamberlin. When I push the button on the remote the light on the opener blibks but nothing happens: neither open nor close. I reied what you recommend but still no luck. The door wouldn’t work by pressing the arrown on the motor unit either!

We did change the circuit board and the lightbulb is still FAST blinking. The control opener doesn't work, the remote control doesn't work nor does the keypad. We really were hoping to fix ourselves. Any other advice?

Thanks you sir that could have saved us 2.5 hours and a Hella lot cussing. Much respect

Just installed one of these garage door openers and tried doing the clicking the middle button, then holding the UP button, and all I get is the two click sounds and flashing lights. No motor travel at all. I will admit that I did not run any wires to the unit, only just plugged it into a wall socket, is that the issue?

My sensors were lit up properly and then I got the garage door heights programmed. Now the sensors aren’t lit but barely flicker when trying to open but the door won’t budge.

Did everything in video still light flashes twice , motor runs adjusted top and bottom, sensors ok… ?

This could have been a perfect video to compensate the defects of Chamberlain manual that failed to describe this regards. The manual said when the light flashes two times, it means the circuit board needs to be replaced. But in fact, it simply means you need to set up opener's up and down limits. Too bad you were not willing to reset your opener to clearly demonstrate the real setting procedure. You see, by just talking, it is not as effective as actual doing, especially Chamberlain uses different light flashings to signify different meaning. Besides, resetting a set code is also a good tutorial subject.

It still doesn’t open after i pressed the upward arrow. I did everything already. The rectangle button is yellow and connected to the wifi but for some reason when i try to program it it won’t open

I have a Chamberlain and I don't have those buttons. No Wi-fi either. Just the basic one. So is there another area to adjust that

What happens if it still doesn’t work? I tried this multiple times and did not work.

i've done this and it will make the garage door go up and close but can't get remote and wall mounted controllers to program.

I followed this but after pressing the up arrow and having the door come all the way up, it is stuck and won’t go down

Even pressing the buttons you mentioned is causing it to blink twice and nothing happens

Man I could kiss you. What a pain in my ass. I contacted their support and the lady was clueless, i had to take pics of my whole setup just for them to tell me it looked fine and send me a new logic board. So annoying. I lookup your video and have it working right after. Man the headache i went though on this was insane

Even if I hold up or down mine still just blinks twice

Looks like part of the video skips & is missing the confirmation of the up programming, and also missing the confirmation of the down programming. It’s missing at 1:32. Otherwise this was helpful until we had to fill in the gaps

These openers have no assembly instructions whatsoever. Oddly enough the hardware is exactly the same as the Craftsman openers, so I just changed out the opener.

Following these steps did not fix the problem with my 893MAX liftmaster garage door problem. When I click either the remote or the wall switch, the garage door opener flashes, doesn’t open. Sensors are aligned.

What if nothing happens?

Yes, finally I got help. You are amazing.💯🫡👍❤