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

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I have a liftmaster door opener and one of the saftey sensors always has a yellow light instead of green.

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That is correct and not a problem.  One light should be yellow which means power and one light should be green which means the lights are lined up. 

Posted on Jan 01, 2009

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