Question about liftmaster Garage Door 1/2 Hp

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I have flashing green light on the wall control panel and the door will not open.

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At a guess, you have to re-teach the power unit to read your remote control. First check there's a good battery in the remote control.

Without instructions, I can't say but here's the url to liftmaster, just enter your details to get to the correct instruction set.:-

http://www.liftmaster.com/consumerweb/service/manuals

Posted on Feb 22, 2012

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