This should be done while you are still holding down the button for the garage door remote.
How to program remote for old sears garage door opener.
If the blue light stays on go to instructions for intellicode iii below while the long led is blinking hold the remote 4 or 5 feet away and press 3 4 or 5 times until the door activates.
Scroll to program and press enter.
Press and hold down the srt button.
This garage door remote is simple to program by matching the 9 dip switch settings 0 that are inside the unit with the settings on your old remote control or opener.
This remote is also compatible with the sears craftsman liftmaster 66lm wireless keypad which is the same as model 740cb 139 53776 and 139 53876.
The long purple led button will start to blink.
Select remote press the button on the remote that you want to use to open the garage door then press enter which is a right facing arrow on the menu.