I'm sorry to hear that. Just to make sure, have you verified that the outlet is working normally? I would definitely recommend connecting a new speaker wire to see if that helps. If not, please also try to unplug the sub from power for a solid minute and see if a reset fixes it. If these steps don't, please reach out to your local service group to see if they can assist. If you go to the site HERE, select your country, scroll down and click on "Contact Us", you should see their phone number.