Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC
Press and hold the square button on the back of the opener for 8 sec. now anything you had program is gone. At this time nothing is programed into your opener. you must reprogram your new or old remotes you still have for this door. all you have to do is push the same button first on the back of the opener and then the remote you want to program within 30 sec. the lights will blink telling you its done.
Posted on Jun 20, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Dec 08, 2013 | Cars & Trucks
Oct 07, 2013 | 2003 Acura MDX
Nov 29, 2011 | Cars & Trucks
Oct 21, 2010 | 1999 Honda Accord
May 10, 2010 | 2003 Toyota Celica
Mar 26, 2010 | 2003 Land Rover Freelander
Nov 04, 2009 | 1988 Buick Regal
Nov 23, 2008 | Sears Craftsman LiftMaster Chamberlain...
Apr 26, 2006 | JVC KD-SX780 CD Player
705 people viewed this question
Usually answered in minutes!