If you know the existing pin code on your opener and just want to update it follow these steps.
How to change liftmaster garage door opener.
You will need a ladder to access this.
Open the ladder by pulling the 2 metal halves apart from each other and pressing down on the 2 cross beams.
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Just enter the current pin code and press and hold the button.
Wait for 10 seconds to test out your code.
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Locate the learn button on your opener.
The garage door motor is a roughly 8 in 5 in 20 cm 13 cm box mounted to the roof of your garage.
Just enter the new code and wait for the garage door opener to activate.
Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem.
The led lights will blink twice.
If you don t use the learn button on your opener.
Set up a ladder beneath the garage door motor in your garage.