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

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My Liftmaster 1/2 HP garage door opener is not working at all. There is power at the outlet. I have 3 openers and only one is having a proble.

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You need to find out where you are losing the power. I would pull the logic board and look for burnt or missing traces on the printed circuit board and also look closely around the small transformer on the board for loose connections.

Posted on Jul 30, 2009

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