Loose the torsion spring a couple of 1/4 turns to let the door going down a little faster, which can prevent from cable slack.

Electric lock is needed because the opener does lock itself but not the door so that the door would be lifted up by a strong guy.

Great video - thanks for taking the time. I’ve been planning to install one of these too. I watched the Chamberlain video on the tension sensor and it seems that you can “tune” its sensitivity by shimming the sensor to be closer or farther from the cable. In your case increasing the distance might prevent the nuisance activations. Just something to try if you want to keep the sensor. It sounds like its main use is to prevent a thrown cable, something I’ve never experienced.

Difficult to find how to release and reconnect garage door release. Thanks for demoing the decoupling and coupling of emergency release for wall mounted garage door opener.

Got one too! A true Man’s Garage now!

Great video. Great information.

The cable tension sensor is there so cables dont come off the drum. The cable goes slack due to door not starting down fast enough. They sell pusher springs to help with this. They mount on the tracks where the top of the door is in the fully open position. Thanks for the video.

I'm guessing if you removed the piece of 3/4" plywood you put behind the cable tension sensor, that would fix your issue. That extra gap would hold the sensor further open and likely won't "trigger" when you close the door, but will still "trigger" if the door actually hits something. Just a thought...

The safety sensor receiver is green and has a small lens. The safety sensor sender is amber and has the flat surface (no lens). This is from chamberlains website and can be confirmed by blocking the light path between the sensors and the green light will go off indicating that it is not receiving the IR light from the amber sender. See chamberlain website support.chamberlaingroup.com/s/article/GDO-Sun-light-interference-with-safety-sensors-1484145678313

Cliff don’t need no KZfaq money, he got a Porsche.. 😂😂🤣🤣

u should mount the lock, if u rly try, u can open it bc the opener stops the spring, so it can be lifted wo spring with a lot of strength

Hi Cliff, thanks for the video. I'm thinking about purchasing. Do you know if there is a connector on the bottom at right front, kind of diagonal from the release cable? On the Liftmaster 8500 this is where you connect battery backup, but according to Chamberlain manual this is not an option, but I've heard differing opinions. I would assume there would be a charging voltage at these terminals if they exist? Thanks for checking!

Non invasive “wall mount” opener (counting on standard counterweight spring system) can’t work perfectly when existing over head rails weren’t installed sloping downward towards - the drive way. Thereby the opened door on horizontal slope has less or no tendency to glide down. Problem? Set free suspension cable from the drum-rail. Potential fixes. - In full up position set the bottom panel 45-deg to encourage door glide forward on its weight. - fine unwind counterweight spring tension to encourage glide but slamming door to floor. - add ballasts to bottom panel to encourage... - add one, spring loaded cables, on each drum to pull door downwards as motor spins (diy) If all else fail, - buy a door pusher from its manufacturer.

Cliff, do you find that the door closes a lot faster than it opens? Almost like it's dropping?

My door will open but not go down due to cable tension, but there is nothing blocking the door do you know that could be?

Those connectors you mentioned at the end of your video, I think they may be WAGO type connectors. WAGO sells a tool that looks like a small blade screw driver. I hate these type connectors but they're almost an industry standard. Good old screw terminals are better for commercial consumers,

Thank you buddy for the video. I also don’t see a useful purpose for a door lock or a cable monitor. Will try to bypass both. Door lock is easy, cable monitor not so much. 😊

Do you have to use wifi on this unit?

Getting ready to build. My ceilings are 14 feet. My garage doors are 12 feet. Can I still have my doors hug the ceiling? Or do I need to go 13 foot high doors?

Chamberlain doesn’t need to adjust anything installing this opener and everything is very simple very easy the door lock should be installed the tension monitor was probably installed incorrectly the way you hook up the wires in the opener is very easy just need to push it lightly and guide the wires in and you’re done and your emergency release rope you need to take at least 2 feet off of it so it’s not up to your stomach you want it about where your head is at least on his side mount opener

The cable slack sensor senses if the cable breaks.

Hello. I think the deadbolt lock should be installed because only gravity is holding your door shut 😊.

Missing a final step: travel setting.

Looks good. No, wait a sec-- are you plugging the unit in with an extension cord? Manual says that's a big no-no... 😂

U.N.