If you have more than 1 garage door you ll need to reset each unit individually.
How to reset liftmaster garage door opener.
Press and release the learn button on the opener s motor unit.
Reprogram each remote control and keypad you wish to use.
If a bulb is not installed listen for two clicks.
The button s indicator light will illuminate for 30 seconds.
Locate the learn button on the garage door opener.
Click the button to check and make sure that the garage door does not open.
Press and hold the button on the remote until the light bulb on the opener blinks indicating the opener has been reset.
If you de linked any smart devices double check those to make sure they can t still open your garage door either.
Erase your remote controls and keypads using the learn button on the garage door opener.
Then fetch your garage door s remote control opener.
All previous codes are now erased.