Garage Door Openers - Changing Programming Code
How do you change the code for garage door openers?
If you want to erase all codes and reset/reprogram all remotes and keypads, you first Press and hold the learn button for a specific time period, ranging from 6 seconds to 30 seconds, depending on the manufacturer.
The best way to determine the exact procedure is to download your owners instruction manual to your computer.
Most owners manuals are listed at
Garage Door Opener Installation ManualsHope this helps,
Donald