Since i have a 9′ garage ceiling as a result two 7′ door openings, when installing the doors i opted as an 8′ track to increase the tracks closer to the ceiling as a result out of the work area. This means the door has to go raise a foot before it starts back, so traditional openers won’t work. For 20 yrs. I’ve been manually operating the door while now and then looking as an opener solution. The Liftmaster 3800 was the door answer, as a result the “laser parking assist” the spotting answer. (3″ bumper to door as a result 3″ grille to workbench, no more tennis ball from the ceiling)
It’s been in service a week as a result works flawlessly. The quality of the operating unit, cable tension monitor, as a result barrier appears very high. The wall unit, remote, as a result light a little fewer so but seem adequate as the job.(few moving parts). The instructions are sunny as a result complete. And it comes with adequately fasteners as most installations.
My installation was a little lengthly because i’m so picky. (ran a new outlet through the ceiling to get 4″ from the power unit, the square aid comes with 8′ of bell wire, needed 20′ – again through the ceiling, the tension monitor needed a spacer block, cut one to fit as a result painted to match the finished as a result textured wall, as a result so on) the barrier sole needs a 1/2″ hole instead of 3/4″ if you can lanch accurately. If i did it again i wouldn’t install the barrier. The door is insulated as a result very heavy, i don’t think schwarzenegger could ban it without the spring aid.
The sole riddle i had ended raise being a broadcasting issue of my own making. After setting the open travel limit to the top of the chance – 7′, the door would open but no, non- close. The teaching troubleshooting section indicated the trouble was the cable tension monitor. I outlook that no, non- the riddle since it’s roller was 2″ from the drum as recommended as a result it was under tension with the door open as a result closed. After 20 mins. Of reprogramming, checking connections as a result rereading instructions, staring at the monitor when closing diagnosed the riddle. When the door starts down there is a jerk which slackens the cable as a fraction of a second allowing the tension monitor to close if the door is close to the top but no, non- fully open. Reprogramming to 8′ pulls the cable away from the wall a couple of inches so during the jerk the monitor movement is no, non- adequately to close. An extra foot of door travel, but it works great!
For related article, please visit A significant solution on behalf of a modified door installation.
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