Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC
I don't have the manual to my Liftmaster Model #1040-6. I cannot locate the dip switch panel on it to change the remote codes. Help appreciated!
There should be a round green button one the back of the unit. Press and release that button and ten press your remote button. That should program your remote.
Posted on Jan 29, 2012
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Posted on Jan 02, 2017
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