Install the vertical roller tracks first by wrapping the curved lip around the rollers. The top of these tracks should be approximately 8 in. below the top of the top section. Wait to install the upper tracks until this step is complete. Check the level of the top section to make sure the tops of the vertical roller tracks are level with each other. The bottom of the roller tracks should be at least 1/8 in. off the concrete floor. After leveling and mounting these tracks, install the upper roller (horizontal) tracks.
If your garage door goes up and down in a jerky motion, you might have one broken spring on a two spring system. Some garage door openers are strong enough to lift a door with only one good spring. The “herky jerky” motion is especially common with garage doors equipped with extension springs. It might be something as simple as lubricating your garage door pulleys, hinges, and rollers. When in doubt or if something doesn’t feel right about your door, call a service company to have it serviced.
In order to prevent injury, garage doors automatically reverse if they come into contact with an obstacle. When the door closes halfway but then reverses for no apparent reason, this may be a sign that there is something preventing it from closing, something that you can't see. Check the tracks for stuff like dirt, rocks, bits of trash, or other debris. Give the tracks a wipe-down to dislodge anything that might be getting in the way. https://youtube.com/watch?v=Z_eZc-kh40c

I never heard of Oak Glen before, but do recognize the mountain names. I wouldn't expect to find any towering Sequoias and Redwoods there because neither species is native to that part of California, and they do take some time to become towering. And I've never heard of any overlapping of their ranges. A more suitable house for this location might get inspiration from the Monolithic Dome in Yucaipa which survived a direct hit from a wildfire.
9.9 Go to the other side of the garage door and insert the end of the cable into the drum. Rotate the drum until the cable is tight. Slide the drum against the bearing and push the shaft to the right. The marks should line up. If they don't, figure out why and correct the problem. It could be a stuck cable, the garage floor may have shifted, or the vertical angle that helps support the bearing plate may have loosened and shifted. Many garage doors have been installed with a gap between a drum and a bearing plate. The cable drums should always be flush against the race of the bearings.
Sometimes, you’ll notice that your garage door closes all the way and then immediately goes back up instead of staying in the closed position. This issue usually arises with brand new garage doors that were just installed or older models that may need to be reset. If this happens, the most likely culprit is the open and close limit settings of your garage door opener.
If you can hear your garage door motor running for what seems like the full amount of time it normally would take to open or close the door, but the door doesn’t move, chances are the disconnect switch has been enabled. Every garage door opener comes with a disconnect switch in case you lose power. This allows you to open or close the door manually so your car isn’t stuck in the garage until the power comes back on.

Although garage door springs can break during any season and at any time, they most commonly break during the winter. This has to do with the temperature change. When the temperature sinks below a specific threshold, the metal will contract. This means it’s extremely possible for your door springs to shrink slightly during the winter months. This is hard on the springs and makes them more likely to break. https://youtu.be/Z_eZc-kh40c
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