Since i have a 9′ garage ceiling as a consequence two 7′ door openings, when installing the doors i opted for one 8′ track to lift the tracks closer to the ceiling as a consequence out of the work area. This channel 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 occasionally looking for one opener solution. The Liftmaster 3800 was the door answer, as a consequence the “laser parking assist” the spotting answer. (3″ bumper to door as a consequence 3″ grille to workbench, no more tennis ball from the ceiling)
It’s been in service a week as a consequence works flawlessly. The quality of the operating unit, cable tension monitor, as a consequence wrestling hold appears very high. The entanglement unit, remote, as a consequence light a little lesser so but seem adequate for the job.(few moving parts). The instructions are sunny as a consequence complete. And it comes with sufficient fasteners for 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 parking lot assist comes with 8′ of bell wire, needed 20′ – besides through the ceiling, the tension monitor needed a spacer block, cut one to fit as a consequence painted to match the finished as a consequence textured wall, as a consequence so on) the wrestling hold barely needs a 1/2″ hole instead of 3/4″ if you can practice accurately. If i did it besides i wouldn’t install the wrestling hold. The door is insulated as a consequence very heavy, i don’t think schwarzenegger could drive it without the spring assist.
The barely dilemma i had ended raise being a broadcasting issue of my own making. After setting the open travel limit to the top of the first – 7′, the door would open but not close. The instruction troubleshooting section indicated the trouble was the cable tension monitor. I deliberation this one not the dilemma since it’s curler was 2″ from the drum as recommended as a consequence it was under tension with the door open as a consequence closed. After 20 mins. Of reprogramming, checking connections as a consequence rereading instructions, staring at the monitor when closing diagnosed the dilemma. When the door starts down there is a jerk which slackens the cable for a fraction of a second allowing the tension monitor to close if the door is close to the top but not fully open. Reprogramming to 8′ pulls the cable away from the entanglement a couple of inches so during the jerk the monitor movement is not sufficient to close. An extra foot of door travel, but it works great!
For related article, please visit A great solution for a modified door installation.
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Tags: Garage, Liftmaster, Residential