Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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I turned my garage door opener off and went to manual yesterday because the power was off in our community . Since i have done this i cannot switch it back. It is a Chamberlain-3220. Can anyone tell me how to do this and what is the problem?

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I think by going to manual you must mean you released the door from the opener by pulling down on the rope. The release on newer openers locks in the released position so the two halves of the trolley will not snap together. To unlock this pull straight down on the rope and release. By running the opener or sometimes by manually moving the door you can get the two halves to snap back together.

Posted on Sep 28, 2010

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