NO power in subwoofer, power light will suddenly not turn on.

I suggest turning off and unplugging everything from the power, then disconnect everything from each other. See if you can get it to pair again. Otherwise, please give more details on which model sound bar and subwoofer.
Thank you.

Amp has power, but no sound! - ecoustics.com

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Nov 5, 2007 - The other night my fiance's amp stopped pushing the subwoofers. ....also, it was working fine for however long- and then just stopped working. if that were the case, it wouldn't have worked in the first place. .... lastly before u go saying but the amps power lights on i'm sure the amps ..... Car Speakers Forum WHY DOES MY AMP POWER LIGHT TURNE RED ON PROTECT ...
Sep 11, 2011
Please someone help me! I am dying without my music!!!
Aug 4, 2011
Subwoofer stopped working all the sudden
May 26, 2010
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I got the same problem, my sub was working perfectly and suddenly one day it did't turned on, so I think it is the protection from the internal transformer, it needs to be changed but I don't know the model, if someone else knows I would appreciate the info because it is a really good subwoofer for the size...

Sure they don't have power? Light breaks all the time on those things. If no power still, open it up and find out if there are any loose connections from the power leads. Bad power cable?

check your earth from the amp i had same prob and the vibration broke earth connection once secured it was fine

Hi janros123 - I don't know if this will help - I have a subwoofer ACS48 that needs satellite speakers (they are blown). Want to buy my subwoofer or sell your satellites? I will buy your broken subwoofer, too...thanks, and good luck! Greg illdooyoo at gmail dot com

It's probably the amp in the subwoofer. Bad cable don't cause clipping. Nor, is an amp output likely to overdrive the subwoofer.

On second thought, why are you using an amp with it turned off? Have you tried turning on the amp whcih provides the signal to the subwoofer? That could well be your problem.

You blew your sub.

The circuit that should be turning the sub on and off based upon the presence of an audio signal is not working correctly and the sub is trying to reproduce 60 cycle hum. The unit needs service.
Dan

Check the main amp fuse under the hood, even if it looks good just change it. Often times that light on the amp can come on just from the power amp tunon wire. Try a friends subwoofer box just to make sure the connectors on your box are good, and if that doesn't work then give me some more details....year/make/model of car, what kind of sub, what types of things do you see on the side of the amp....is there a green light as well as a red light?