If you have already tried to teach the sound bar your universal remote, then you will need to clear the codes and put the Sound Bar back to factory default. This document is also attached below.
Bars that work with these remote codes
Klipsch Icon SB 1
Klipsch HD Theater SB 3
Energy Power Bar
Energy Power™ Bar Elite
Bars that Will Not work with these remote codesFor these Sound Bars you will need to use your Stock TV remote and learn it to the sound bar. Then just program your TV's code in to the universal remote and it will operate the volume on the Sound Bar as well.
Klipsch HD Theater SB 120
Energy Power™ Bar One
Energy BTS 2.1 Soundbar
Energy Power™ Base
If your remote if not listed below, please open a ticket and let us know all the info on the remote you are using. We need to know the providers name, the remote model, your TV model, and I would also attach a picture of the remote as well, to help us better assist you.