There are two 'limit swithes' on the top garage door rail. One by the main unit and one at the garage door end. If you watch you will see them move when you open and close the door. The problem is that over time they have become loose. Get up there, position them back a little and them re-tighten them. Problem solved!

Asked by Kyle on 11/03/2010 0  Answer

ManualsOnline posted an answer 14 years ago

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