A bravo solution because of a modified door installation Posted on June 28th, 2010
Since i have a 9′ garage ceiling as a result two 7′ door openings, when installing the doors i opted for an 8′ track to raise the tracks closer to the ceiling as a result out of the work area. This medium the door has to go upright a foot before it starts back, hence traditional openers won’t work. For 20 yrs. I’ve been manually operating the door while now and then looking for 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 court 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 entanglement unit, remote, as a result light a little less hence but seem adequate for the job.(few moving parts). The instructions are explicit as a result complete. And it comes with sufficiently fasteners for most installations.
My installation was a little lengthly because i’m hence picky. (ran a new outlet through the ceiling to get 4″ from the power unit, the car park assist comes with 8′ of bell wire, needed 20′ – anew 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 hence on) the barrier barely needs a 1/2″ hole instead of 3/4″ if you can practice accurately. If i did it anew i wouldn’t install the barrier. The door is insulated as a result very heavy, i don’t think schwarzenegger could end it without the spring assist.
The barely obstacle i had ended upright being a programing issue of my own making. After setting the open travel limit to the top of the gap – 7′, the door would open but no, non- close. The guidance troubleshooting section indicated the trouble was the cable tension monitor. I speculation this one no, non- the obstacle since it’s curler 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 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 no, non- fully open. Reprogramming to 8′ pulls the cable away from the entanglement a couple of inches hence during the jerk the monitor movement is no, non- sufficiently to close. An extra foot of door travel, but it works great!
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