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Change The Liftmaster Garage Door Battery
This video shows you how to change the battery in your Liftmaster remote and keypad. This should be one of the first things you check if your garage door doesn't open when you hit the button on the remote.
In this video Precision Garage Door of OKC provides instructions on changing your garage door remote battery. Be sure you know what type of battery your remote uses. In this video, you'll notice we're working with a nickle sized wafer battery, which normally has a lifespan of 2 years. Also, make sure you have a flat head screwdriver or small knife to pop open the remote casing and access your battery. Before you raid your tool box for batteries and screwdrivers, you might want to check your wall control unit first, as the lock/vacation button may have accidentally been pressed.