Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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My Stanley 9600 opener will only work with the remote. Pressing the button in the garage, or jumping the terminals right at the two wires on the opener does nothing. This happened after an electrical storm. Also, any time I unplug it and plug it back in, it will close if it was already open, or open if it was already closed.

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You have shorted out your logic board. This could of been prevented with a surge protector 900 joules or higher. Whether you repair or replace get one. Stanley went out of business but you may still be able to find replacement parts online. Thanks BB

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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