Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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Remote does not work. keypad partially works in that it will go up by touch, but will not go down unless held in place. both remote and keypad worked fine before major snowstorm. No obstruction blocking sensors and all wires appear to be in place. Please advise. Thank you Jack

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Check for proper aiming of door sensors

Posted on Jan 16, 2011

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Posted on Jan 02, 2017

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