Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC
Typically the remote codes are stored on the controller board (called logic board). if the wall switch for your opener still works, but you are unable to reprogram the existing remotes that came with the unit (assuming of course you checked batteries in the remotes) then it is likely that the logic board has died. Given that the opener is 13 years old, this is not unexpected. New openers have a host of new features including advanced security, so it might be a good time to invest in a new one.
Posted on Sep 25, 2009
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Posted on Jan 02, 2017
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