On Tue, 10 Nov 2009 16:36:45 -0800 (PST), Brandon
wrote:

On Nov 3, 8:46Â*am, "pacca" wrote:
I have lift-mastergaragedooropener , at times when I close thedoorit
will reverse it self when it reaches the bottom , it's a chain drive 1/2
horse opener, Â*any body have had this problem.Thanks


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Either the limit switch is out of adjustment or the current sense is
set too low or both.