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Posted by pacca on November 3, 2009, 9:46 am
I have lift-master garage door opener , at times when I close the door it
will reverse it self when it reaches the bottom , it's a chain drive 1/2
horse opener, any body have had this problem.Thanks
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Posted by dpb on November 3, 2009, 9:45 am
pacca wrote:
> I have lift-master garage door opener , at times when I close the door
> it will reverse it self when it reaches the bottom , it's a chain drive
> 1/2 horse opener, any body have had this problem.Thanks
Shorten the down stroke just a tad.
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Posted by on November 3, 2009, 10:09 am
>I have lift-master garage door opener , at times when I close the door it
>will reverse it self when it reaches the bottom , it's a chain drive 1/2
>horse opener, any body have had this problem.Thanks
The down stop switch may need adjusting. Also make sure it isn't
twisting the track and knocking the photo eye out of alignment.
I had a neighbor call me for this and one of the labels on the door
had come loose and was blocking the eye when the door went down.
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Posted by Eric in North TX on November 3, 2009, 4:25 pm
> I have lift-master garage door opener , at times when I close the door it
> will reverse it self when it reaches the bottom , it's a chain drive 1/2
> horse opener, =A0any body have had this problem.Thanks
Very likely an electric eye problem, look at the leds, they usually
show if they are aligned and working. mine show green when they are
right, but every manufacturer does things a bit differently.
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Posted by Oren on November 3, 2009, 4:34 pm
>I have lift-master garage door opener , at times when I close the door it
>will reverse it self when it reaches the bottom , it's a chain drive 1/2
>horse opener, any body have had this problem.Thanks
Check the photo cells for proper alignment and clean the lenses.
Next would be adjusting up/down force settings.
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> it will reverse it self when it reaches the bottom , it's a chain drive
> 1/2 horse opener, any body have had this problem.Thanks