by Joe Maillet
I have 2 Garage door openers. I have the remote control code for one, but don't know the code for the other.
I want to set the remote to be able to open both doors. I have it set on "0" to open one door, but can't seem to figure how to program it to open the other door with the "-".
Can you help? The System is a 1/2 horse Allstar S/N 020400605
You don't mention the model of garage door opener that you have.
You will find radio control manuals that should answer your question at http://www.linearcorp.com/allstarcorp.php