Did the 3100 except the recond comand on the rec button? If so, will it not ececute the command when you press rec? If that was the problem, you have to hold the REC button down for 1-2 seconds before it will send out the command. You can chage that to 0 seconds, I think it is on page 86. Adjusting beam interval
cb1
why have a nice system if you cant operate it, program the remote the right way the FIRST time!