Hi there,
From the manual on how to pair your soundbar to the subwoofer.
1. Press and hold ID SET on the rear of the subwoofer for at least 5 seconds.
• The red indicator on the rear of the subwoofer turns off and the blue indicator blinks.
2. Press and hold the Up button on the remote control for at least 5 seconds.
• The ID SET message appears on the display of the Soundbar for a moment, and then it disappears.
• The Soundbar will automatically power on when ID SET is complete.
3. Check if the LINK LED is solid blue (connection complete).
If you continue to have difficulties pairing your subwoofer to the soundbar, please contact Samsung Customer Service for more assistance.
Call us at 1-800-SAMSUNG (ask for Soundbars), available 8 AM – 12 AM EST, 7 days a week.
LiveChat with an agent by clicking the ‘Support’ link on the Samsung website.
~Samsung Solutions