Most, if not all, openers have a spring loaded limit switch that will shut
the system down if there is a hang-up. I suspect that it is responding to
an increasing stiffness in the system. It may be, as you say, in need of
grease. Or maybe the spring adjustment has backed off a bit. I'd start there.
If the door is opening easily then it probably is the opener.
Dave
In a message dated 12/6/2013 1:31:23 PM Central Standard Time,
dave@ranteer.com writes:
> anyone know anything about garage door openers?
>
> mine works some of the time.
>
> the rest of the time it opens maybe 6 inches and stops. hit it again then
> it
> closes. if I pull the release I can open the door no problem. not an
> urgent
> issue because I only keep LBCbs in there.
>
> does it just need grease or something? or should I replace it? doesnbt
> seem worthwhile to pay somebody to do that when supposedly Ibm a mechanic
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