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Posted by doordoc@prodigy.net on January 31, 2007, 2:07 pm
Sounds like the gear on the limit assembly is stripping out (odd for a
fairly new opener, but not on older ones) & that the assembly needs to
be replaced.
Doordoc
www.ActionDoor.com
> I have a Craftsman 1/2 hp screw-drivegaragedooropener. It was
> professionally installed in 2003 on a newgaragedoor. Never had a
> bit of trouble with it (until now).
>
> In the middle of January, my wife said "thegaragedoorisn't closing
> all the way". Sure enough, it stopped about 3-4 inches short of
> closing. And, the arm mechanism would bang into the actual drive
> housing when it was fully opened.
>
> "Ah, simple adjustment" I thought. I grabbed a screwdriver and
> adjusted the travel limits (lower and upper) and it worked fine. For
> about two weeks.
>
> I noticed was, again, not closing completely and banging into the
> drive housing when opened. I adjusted the limits a second time.
> Looked good to me.
>
> Three days later... I notice it's not closing all the way <grrrrr>...
>
> The problem is happening more frequently. Obviously, my feeble
> attempts at adjusting the limits work only temporarily.
>
> Could the opening arm be consistently 'skipping' on the screw drive?
> What else could cause the repeating adjustment problems? Anything I
> should check before I just call someone to take a look at it?
>
> Thanks!
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