Since i have a 9′ garage ceiling as a result two 7′ door openings, when installing the doors i opted on behalf of one 8′ track to raise the tracks closer to the ceiling as a result out of the work area. This means the door has to go increased a foot before it starts back, so traditional openers won’t work. For 20 yrs. I’ve been manually operating the door while at times looking on behalf of one 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″ grid to workbench, no more tennis tournament 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 lock appears very high. The resistance unit, remote, as a result light a little less so but seem adequate on behalf of the job.(few moving parts). The instructions are obious as a result complete. And it comes with adequate fasteners on behalf of 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 store help comes with 8′ of bell wire, needed 20′ – further 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 lock sole needs a 1/2″ hole instead of 3/4″ if you can practice accurately. If i did it further i wouldn’t install the lock. The door is insulated as a result very heavy, i don’t think schwarzenegger could end it without the spring help.
The sole dilemma i had ended increased being a broadcasting issue of my own making. After setting the open travel limit to the top of the hole – 7′, the door would open but no, non- close. The instruction troubleshooting section indicated the trouble was the cable tension monitor. I speculation the no, non- the dilemma 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 dilemma. When the door starts down there is a jerk which slackens the cable on behalf of 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 resistance a couple of inches so during the jerk the monitor movement is no, non- adequate to close. An extra foot of door travel, but it works great!
Please visit A significant solution because of a modified door installation for more detail.
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