My garage door wont stay closed-it goes down until about six (6) in from bottom then returns to open position.Checked alignment of 2 sensors-OK have a green lite on the mounted unit flashing continuously On base sensors one has a red light other has a black rubber grommet-red light on sensor will go off when beam is broken. Pat

Asked by Pat on 12/07/2012 1  Answer

ManualsOnline posted an answer 11 years, 5 months ago

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