A great solution since a modified door installation
Since i have a 9′ garage ceiling plus two 7′ door openings, when installing the doors i opted for an 8′ track to increase the tracks closer to the ceiling plus out of the work area. This resources the door has to go along a foot before it starts back, very traditional openers won’t work. For 20 yrs. I’ve been manually operating the door while occasionally looking for an opener solution. The Liftmaster 3800 was the door answer, plus the “laser parking assist” the spotting answer. (3″ bumper to door plus 3″ grid to workbench, no more tennis ball from the ceiling)
It’s been in service a week plus works flawlessly. The quality of the operating unit, cable tension monitor, plus latch appears very high. The block unit, remote, plus light a little less very but seem adequate for the job.(few moving parts). The instructions are clear plus complete. And it comes with amply fasteners for most installations.
My installation was a little lengthly because i’m very picky. (ran a new outlet through the ceiling to get 4″ from the power unit, the parking lot aid comes with 8′ of bell wire, needed 20′ – once more through the ceiling, the tension monitor needed a spacer block, cut one to fit plus painted to match the finished plus textured wall, plus very on) the latch lone needs a 1/2″ hole instead of 3/4″ if you can lanch accurately. If i did it once more i wouldn’t install the latch. The door is insulated plus very heavy, i don’t think schwarzenegger could elevate it without the spring aid.
The lone obstacle i had ended along being a programming issue of my own making. After setting the open travel limit to the top of the hole – 7′, the door would open but not close. The instruction troubleshooting section indicated the trouble was the cable tension monitor. I philosophy this not the obstacle since it’s roller was 2″ from the drum as recommended plus it was under tension with the door open plus closed. After 20 mins. Of reprogramming, checking connections plus rereading instructions, staring at the monitor when closing diagnosed the obstacle. 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 block a couple of inches very during the jerk the monitor movement is not amply to close. An extra foot of door travel, but it works great!
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