Screw drive garage door opener binds...needs lube?
Mine use to bind up when the weather got cold and lubing it fixed that
problem.
I put the lube on the screw in places over the full length and then
open and closed the door a couple of times to spread it around.
That is about as much as I know.
If lubing it doesn't fix the problem I don't know what to tell you.
Good luck.
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