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Troubleshooting Vizio Sound Bar Problems

Updated on May 03, 2016
Max Dalton profile image

Max holds a BS in Mass Communications from SIU, an MA in Communication from U of I, and is pursuing an MBA from Webster University.

A Vizio Sound Bar can complement an existing surround sound system or replicate one. This article will cover the following:

  • Static
  • Power problems
  • Audio problems
  • Resetting factory settings

These issues can often be fixed with a little effort on your part without having to exchange the device or return it to the manufacturer for repairs.

Vizio Sound Bars pack a lot of audio punch into a very small package.
Vizio Sound Bars pack a lot of audio punch into a very small package. | Source


If your Sound Bar is producing a static sound, check the following:

  • The connectors on the audio cables you're using must be firmly pushed into both the Vizio sound bar and also the source of the audio. If the connectors aren't pushed all the way in, you'll likely experience some form of unwanted noise coming through the speaker.
  • The audio cables you're using to connect the sound bar to the audio source may be damaged in some way. Replace the cables you're using with different cables to see if that resolves your problem.
  • Use a different audio input into the Vizio Sound Bar. If the audio plays fine while the cables are connected, the issue is likely with the previous input you were using on the speaker.

Won't Power On

If it won't turn on, here are a few things you can try to get it working again:

  • If you recently experienced a major power surge in your home (such as a lightning strike), or if you have a large number of devices connected to an AC outlet that shares a circuit breaker with a large number of other devices, try resetting that circuit breaker in case it was tripped.
  • Check the power cable for cuts or other forms of physical damage. Sometimes people roll over power cables with chairs, step on them, or rest a desk on them accidentally, all of which can physically harm the cable. If the cable is damaged, you'll need to replace it using any standard 24-volt power cable.
  • If you're using the remote that came with the Vizio sound bar, try moving closer to the device and ensuring that there are no objects between you and the front of the Sound Bar. Also, position yourself within 15 feet. Outside of the 15-foot range, Vizio doesn't promise the remote control will work. Finally, try pressing the "Power" button that’s physically located on the Sound Bar. If the Sound Bar responds, you have an issue with the remote control. However, if it doesn't respond, consider contacting Vizio about your power issue, as it may be the result of damaged or defective internal components.

Audio Problems

If the audio is silent or you're experiencing other audio issues, try the following:

  • Make sure the source audio isn't muted on the source device.
  • If you can't hear any audio through the sound bar for a source that's connected via an optical cable, make sure the source device is outputting PCM audio. Some other audio types won't play through the Sound Bar when they're connected via an optical cable.
  • Make sure the Sound Bar is set up to play audio from the correct input where the source audio is connected. To ensure this isn't the problem, scroll through all of the Sound Bar's inputs.

How to Reset Factory Settings

For other problems you can't seem to solve using other methods, try resetting the Sound Bar to its original factory settings by doing the following:

  1. Turn off.
  2. Disconnect the AC power for roughly ten seconds.
  3. Reconnect the power cable. The settings on the Sound Bar will be cleared and the device will be restored to its factory settings. While there likely won't be any changes you notice, minor problems can often be resolved by doing this.

© 2012 Max Dalton


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    • Mark 4 days ago

      When my 45" 5.1 Vizio is connected, the audio and video jump to the input screen for a few moments, then return. Using the HDMI cable dedicated to the sound bar on a 60" Vizio 4K TV.

    • Quincy Cunningham 6 days ago

      @ Sharlene Just "forget" the soundbar on your device's bluetooth menu. Then reconnect. It should work after that.

    • Yvette 8 days ago

      Thank you the information you provided was very helpful.

    • Sharlene 8 days ago

      My Vizio sound bar works for almost a year, but now it has really lower I almost cannot hear it when I paired with Bluetooth from my phone or tablet. Even I turn the sound bar and phone to highest sound.

      Please helpe if anyone has same experience.


    • Max Dalton profile image

      Max Dalton 4 weeks ago from Greater St. Louis, Missouri

      Go into the audio settings on the TV and ensure that it's set up to output audio through the optical output. I'd bet that's what's causing your problem.

    • Paul E. 5 weeks ago

      Trying to get audio from model # SB2920D6 soundbar using the optical input. I have confirmed there is a signal (red optic) coming though the optical cable. I've tried this on several brands of TVs but still no sound unless I connect the analog input.

    • JuanitaT 5 weeks ago

      Just got our Vizio Model: S4251w-B4. Everything was set up ok, however can't get the woofer and side speakers to work. Dles anybody know why?

    • dennis 5 weeks ago

      My sound bar does not turn off when I turn off with Direct tv remote. every thing else seems to work great. Need trouble shooting help,

    • Eddie 7 weeks ago

      Sound bar went out but woofer works well, I've unplugged it changed cables but still no sound..

    • Dori 7 weeks ago

      Everything is working but when ever any kind of music comes on the sound cuts in and out....any suggestions on how to fix this?

    • barbara 8 weeks ago

      Have a V2 and reset it a few months ago, same problem back-no sound. thought I remember seeing something about contacting Vizio about upgrades? ?

    • Sue 2 months ago

      Why does the volume go up and down on the sound bar when commercials come on and every so often the bar cuts off for a second

    • 2 months ago

      So my soundbar starts getting a buzzing noise. It get progressively worse and worse. An easy fix to it (for about 30 min) is to switch from one tv output to another and then back again. WTF?!

    • T Rhodes 2 months ago

      This happened to me. I fixed the problem by cycling through the inputs by pushing the INPUT button on the sound bar remote. It was not using the optical cable input (source 4). Hope that helps. It's nice to have my sound bar back.

    • Tommy 2 months ago

      I have a Vizio sound bar model #VSB210WS. It worked great for several years. Now the sound bar will not turn on but the bass module light blinks. There seems to be power getting to the sound bar but it is dead. Any suggestions or has its time just come?

    • Brandon Peyton 2 months ago

      I have a visio sound bar with wireless subwoofer. The subwoofer stoped working but the suround speakers plugged into the woofer work as well as the sound bar. Any help?

    • Laidback 3 months ago

      Manually or remotely can be turned on and turns of after a few minutes of non use

    • udayan mane 3 months ago

      Sir i buy Vizio 5.1 but because low or high voltech little smoke coming from bar now my bar is not working what can do ......my friend told m problem with transmitter...... plz sugest m sir i am too MCh afraid....

    • YBSLIM 3 months ago

      I have a Vizio 2.0 soundbar, speaker works great using Bluetooth from my phone but cant get TV to play through it. Ive tried every cable and every cord.. Any HELP Please!!!!

    • Alex 3 months ago

      i just called Vizio tech support about mine and they were surprised at how dim the remote's display is. Apparently they never user-tested it in a dark room! So I doubt this model (which seems to come straight from Vizio) is any brighter. I'm buying one of these and taping it to the back of my remote: http://amzn.to/2dXxvQ7

    • ROBIN 3 months ago

      Unplug and it reset works great thanks

    • AubreyD 4 months ago

      We turned on the sound bar last night and all was well! Next day turned it on and nothing!! All the led lights were on across the board, never seen this! Will not respond to anything, I unplugged the power,held down the on/ off button, input button doesn't respond! Anyone know what the problem is??

    • Jizzman 4 months ago

      Will never buy a Vizio product again. Straight garbage.

    • Jim 4 months ago

      my vizio sound bar comes on and then in about 20 to 30 minutes if starts making a loud nose and no sound from tv.

    • Max Dalton profile image

      Max Dalton 4 months ago from Greater St. Louis, Missouri

      Try muting it using the physical button on the sound bar rather than the remote control.

    • Max Dalton profile image

      Max Dalton 4 months ago from Greater St. Louis, Missouri

      It's going to sound silly, but try moving them closer together.

    • Max Dalton profile image

      Max Dalton 4 months ago from Greater St. Louis, Missouri

      Try moving the two devices closer to each other.

    • Max Dalton profile image

      Max Dalton 4 months ago from Greater St. Louis, Missouri

      I would exchange it ASAP and see if they'll ship you a different one. Issue is likely tied to the fact that it's a refurb.

    • Debbie 4 months ago

      My sound bar won't mute

    • sean@nofaultservices.com 4 months ago

      I just got this vizio sound bar with a wireless sub woofer. I was able to get the sound bar to work great, but i cannot get any sound coming from the woofer. I followed the directions on how to pair the wireless woofer to the sound bar but no sound.

      Any help would really be appreciated.

    • Matt 5 months ago

      Sound bar works fine, sub quit. Thoughts?

    • Tom 5 months ago

      Vizio sb 29 something, worked for a while and sometimes had this problem but never hard to fix, power on, right input, no sound coming out, tried it with multiple devices all with volumes up and working. My sb was on a plug with many other things plugged in so I switched outlets and it still didn't work?

    • Derrell 5 months ago

      I have a Vizio SB4021E sound bar and woofer. The wireless woofer has never worked. Bar is great. I can barely hear a faint bass sound from the woofer. Is it possible the wireless frequency is not the same on the 2 units. This was a Vizio refurbished unit.

    • Risco 6 months ago

      Great article. Worked well. Thanks!

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      May be a power issue. Do you have it plugged into a power outlet with a bunch of other stuff? If so, try disconnecting the power strip and plugging the sound bar directly into the power outlet and playing audio through it to see if that resolves it.

    • vic 6 months ago

      my vizio sound bar sound goes in and out all the time.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      Awesome. Glad to hear it, Joe.

    • Joe 6 months ago

      My sound bar was producing severe static when connected to the tv via digital optical output. A new cable did not help and the speaker worked on another tv. I connected the cable to my cable box digital optical output and it works great.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      That's weird. You shouldn't have to do that. How regularly?

    • David 6 months ago

      Just got the Vizio TV/sound setup and ran into this problem.

      If on a Vizio TV,

      1) Menu

      2) Audio

      3) Turn surround sound off and on.

      Sorta can't believe I have to do this regularly, but it works.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      Try plugging it in to a different outlet first.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      You may want to turn off any fancy audio settings on your TV that try to adjust the sound levels for you.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      Are you sure it's connected to the audio out on your TV? Also, make sure you're connected to Audio In on the sound bar.

    • Max Dalton profile image

      Max Dalton 6 months ago from Greater St. Louis, Missouri

      Did you have a power outage recently? Try connecting it to a different outlet with no power strips connected to see if it's still not working.

    • Edward Speaker 7 months ago

      on Vizio sound bar model VSB212-B, power on no audio, just a constant popping sound from right side of sound bar, external bass unit does power up.

    • Ed 7 months ago

      My sound bar turns on but I'm getting any sound.

    • Jim Hungarian 7 months ago

      Removed cable box where speaker power taken. Now power plugged into wall outlet. Nothing else changed and wired sub green light comes on but non of the speaker LED's come from on speaker switch plus no sound. Reset to factory resets no help. Shut down speakers and using analog sound hook up. Shut off power and unplugged for 10 seconds and reset power. No help. Any ideas?

    • Herb 7 months ago

      VIZIO obviously has a problem with their power on components. I had to replace that component on my TV after 2 years and now after 18 months the same part went bad on the power bar. VIZIO used to be a great company. I will never buy another product from them

    • Judy 8 months ago

      Sound fades in and out. any ideas?

    • Mondo Gecko 9 months ago

      same here. my soundbar wont turn on. how do i fix this?

    • Max Dalton profile image

      Max Dalton 10 months ago from Greater St. Louis, Missouri

      That sounds like the internal wires may have issues. If possible, exchange it.

    • Rickie 10 months ago

      My vizio sound bar turns on, works for a little while and then turns off. I turn it back on and then in a little while it turns off again. what can be the problem? please help.

    • William Koen 13 months ago

      When you turn our t v on , it comes on full volume every time. You can turn it down with the remote. What to do ?

    • Keith Cassady 13 months ago

      After 18 months. Power went off and won't come back on. Plug is good circuit is good. Just dead.

    • Penny 16 months ago

      My sound are has two blinking lights? Please help

    • john 22 months ago

      My vizio sound bar won't turn on y?

    • Steve 23 months ago

      Just purchased the sound bar with woofer along with tv. The sound was on working fine last night. when turned on this morning no sound. Can not get it to work.

    • I need cables 24 months ago

      I am missing all the cables on my sound bar. Model # CSS2123B/F7 also I have no instructions, no registration card. The large Box speaker has a cord to it, but I don't have any other cords. I also have the remote. Where can I get the rest of the the cords ?

    • Clint 2 years ago

      Thank you so much. How would anyone know that the sound bar won't have audio on HD channels unless you switch to PCM audio output if youre using an optical cable. Thanks again.

    • Clarence 2 years ago

      My vizio sound bar turn on then go off what can be the problem please help

    • Greg 3 years ago

      Worked well...thanks!

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