ONN TV No Sound or Volume Too Low: Fixing Sound Issues

Like all home electronics, ONN TVs occasionally have their issues. Sometimes they have issues with sound, such as no audio, glitchy sound, or volume that is far too low. But most of these problems have easy solutions.

If your ONN TV has no sound, inspect your TV and connected devices’ audio settings. Power off and unplug your TV and devices. Then, examine the audio cables and ports on both your TV and devices to ensure they are correctly and securely connected.

Read on to learn more about how to fix sound issues on ONN TVs, why they happen, and how to fix them. 

Why Is My ONN TV Having Sound Issues?

how to fix onn tv no volume

Audio issues, especially on budget televisions, are common. The causes will vary from situation to situation, but often they are due to outdated software, faulty connections, glitches, or broken hardware.

The underlying cause will most likely be identified by process of elimination as you work through each of the steps below.

Experiencing Low Volume on Your Onn TV?

When the volume on your ONN TV is barely audible, the culprit could be the device delivering the audio. Perhaps the speaker is nearing its end, or the program you’re watching simply has a low volume level.

It’s also possible that an accidental tweak in your sound settings might have led to this issue.

In some cases, the speaker itself may not be powerful enough to produce loud sounds.

What To Do When There’s No Sound on Your Onn TV?

If your Onn TV has no sound at all, the problem likely originates from the TV’s software.

Temporary glitches might be causing the silence, or there could be a deeper issue with the operating software.

Worst-case scenario: your speaker might be totally broken!

In both cases, troubleshooting the problem can help restore your TV’s sound and enhance your viewing experience.

How To Fix ONN TV Sound Problems? No Sound or Volume Too Low

Follow each of the steps below, presented in order of extremity, to troubleshoot your ONN TV sound issues.  

Check The Batteries In Your Remote Are In Right Position & Not Dead

Check the batteries in your remote

If the volume is not adjusting when you hit the volume buttons on the remote, the remote itself could be the issue.

Check the batteries to make sure they are in the right position and not corroded.

If they are more than a few months old, they may be weak or dead so you should replace them.  

Make Sure Your Speakers Are Plugged In

Make Sure Your Speakers Are Plugged In

It seems obvious, but it can’t hurt to check – if you’re using wired or wireless speakers, make sure they’re plugged in and/or paired to the television!

The same goes for if you’re using a Roku Sound Bar or other similar device.

If those devices need to be turned on, make sure they are.  

Switch To Internal Speakers if Using External Speakers

Switch To Internal Speakers if Using External Speakers

You might try switching to the ONN TV’s internal speakers if you were using an external device, to see if maybe the problem is with the external speaker and not the television itself. To accomplish this:  

  • Go to Home
  • Navigate to Settings > Audio > Speakers.
  • Select “TV Speakers” 

Update Your ONN TV

Update Your ONN TV

Outdated software could be causing your ONN TV’s sound issues. Check for system updates by doing the following: 

  • Go to the Home screen.  
  • Go to System > Settings > System > System Update. 
  • Select Check Now.  

If the system prompts you that there is an update available, follow the steps to perform the update and restart the television.  

Power Cycle The ONN TV / Perform A Soft Reset

Power Cycle The ONN TV or Perform A Soft Reset

This manual way of refreshing the TV can drain all electrical power from the device and allow it to start fresh, clearing out any issues with the device’s non-permanent memory without erasing any of your settings.

This is considered a “soft reset” and could flush out any problem that is causing audio issues.

To power cycle your ONN Roku TV:

  • Turn the TV off and unplug the power cable.
  • Press and hold the physical power button on the TV (usually on the back on side) and keep holding it for at least 15 seconds.
  • Wait at least a full 30 minutes with the TV off and unplugged. This will let all residual power drain from the device. 
  • Plug the TV in and switch it on to see if all has returned to normal.  

Clear The ONN TV’s Cache

Clear The ONN TV’s Cache

Clearing the cache is a way of gently resetting the television while leaving all your settings and preferences as is.

You can accomplish this using the remote control and a very specific sequence of keystrokes: 

  • Press the Home button 5 times.
  • Press the Up Arrow button once.
  • Press the Rewind button twice
  • Press the Fast Forward button twice.  

Wait a few seconds and then, if this worked, the TV should restart and turn on. If it didn’t work…try again! Some consumers report trying this at least three times in a row before it finally worked. 

You can also run a system restart from the menu:

  • Navigate to the Home screen.  
  • Scroll to System > Settings > Power > System Restart.
  • Select Restart.  

Switch The Audio Output Mode

Switch The Audio Output Mode

ONN TVs’ default setting is to automatically detect the audio output mode, i.e., whether you’re using the internal speakers, a sound bar, or another external device.

A common reason why the sound gets inconsistent on Roku TVs is because this can glitch and the TV no longer is able to detect the appropriate method of audio output.  

If this is the case, you can manually override it to set it to the audio output mode you prefer.

To do this:

  • Navigate to the Home screen.  
  • Scroll to System > Settings > Audio > Audio Output.
  • If it’s set to “Auto Detect,” change it to “PCM-Stereo.” (This is the most basic kind of internal audio.)
  • Or if there is an option for your speakers or sound bar, try selecting those until you find something that works.  

Switch Your Volume Mode

Switch Your Volume Mode

Most ONN TVs offer volume leveling, which equalizing the level of volume on the program you’re watching automatically to keep it from getting too low or blasting (like when those super loud commercials come on).

But this could malfunction and prevent your audio from working at all.

To turn off volume leveling:  

  • Start watching a show – any show.
  • Press the * on the remote while watching. 
  • Scroll to Volume Mode and switch it to Off. 
  • If it was already Off, try Night mode as an alternative.  

Switch OFF Fast Start Mode

Many ONN Roku TVs offer a “fast start” mode, which lets you wake up the television using voice commands.

It also means that your settings are saved in the TV’s flash memory – as are glitches, including one that might be causing your sound issues.

So, try turning off fast start mode to clear that cache of potentially glitchy settings:

  • Navigate to the Home screen.  
  • Scroll to Settings > System > Power Settings.
  • Scroll to “Fast TV start” and change it to “disabled.”

Check For Any HDMI-CEC Issues

The HDMI-CEC function on your ONN TV allows gaming consoles and other devices connected by HDMI cable to be able to turn on and turn off the TV.

It’s quite possible, then, that you have an HDMI-connected device that is switching your audio input without sending a full signal and therefore no sound.

To turn this capability off: 

  • Navigate to the Home screen.  
  • Scroll to Settings > System > Control Other Devices
  • Switch off 1-touch play and/or make System Audio Control unchecked.   

Reset Audio / Picture Settings On The ONN TV

Before taking the more extreme measure of performing a full factory reset on your ONN TV, you should try resetting only the audio / picture settings to factory status. This can help stop any occasional sound dropouts or syncing issues.

It’s an easy process: 

  • Navigate to the Home screen.  
  • Scroll to Settings > System > Advanced System Settings > Factory Reset > Reset TV audio/picture settings.
  • You’ll be prompted to hit the Play button three times to proceed.  

Factory Reset Your ONN TV 

Factory Reset Your ONN TV 

If none of the above solved your sound issue, you might try returning the ONN TV to its factory settings.

But proceed with caution here, as this will delete all your data and settings and return the device to the original condition it was in before you bought it.

To do this:

  • Navigate to the Home screen.  
  • Scroll to System > Settings > Advanced System Settings > Factory Reset.
  • Select Factory Reset Everything.  

Contact ONN Roku TV Support

Roku customer support

If the sound issue with your ONN TV persists after following the aforementioned steps, it’s time to verify your warranty. There’s a chance you may qualify for complimentary repair or replacement services.

The American firm, Element Electronics, manages the warranty and repair services for ONN products.

For further assistance, reach out to ONN Roku TV support. You can contact ONN / Walmart support through their official website (https://onntvsupport.com), by phone at 1-844-334-2355 (available from 9 AM to 9 PM ET daily), or by email at customerservice@onntvsupport.com.

ONN TV Sound Not Working: How To Fix

If your ONN TV’s sound isn’t functioning, follow these steps:

  1. Use your remote to reset your Roku TV.
  2. Power cycle to reset your TV.
  3. Turn off the Fast Start feature.
  4. Ensure your speakers are on.
  5. Adjust your digital audio out to PCM.
  6. Deactivate volume leveling mode.
  7. Replace your HDMI cables and inputs.
  8. Update your Roku TV software.
  9. Perform a factory reset on your TV.

These measures should solve the issue, though the final actions may require more effort.

The easiest and quick solution is connecting an external ONN Soundbar to TV. We have already published a guide for this, check How To Connect ONN Soundbar To TV.

Here’s a quick video that shows how to perform these steps and fix sound not working on ONN TVs.

Frequently Asked Questions

Does Onn TV have audio output?

Yes, Onn TVs come with an audio output option that allows you to connect external speakers or headphones for a better listening experience.

To access the audio output settings, simply press the Menu button on your remote and select Audio Settings from the settings menu. From there, you can adjust the volume level of your TV’s audio output.

Is there a volume button on the Onn TV?

Many televisions, including both smart and non-smart models, typically feature a set of physical buttons. These are often located on the front or rear panels, usually on either side of the TV. You’ll readily find buttons for Power, Input, TV Channel, and Volume Control. These essential controls are also present on Roku and standard ONN TVs, offering a fundamental method to control your Onn TVs.

My Onn Roku TV sound not working even after changing the speaker. What To Do?

So, now its time toget in touch with the Onn customer service team. They can provide additional assistance and possibly identify whether your TV’s problem is rooted in its software or hardware.

The quickest way to reach them is by calling 1-844-334-2355, which is available from 9 AM to 9 PM throughout the week. Alternatively, you can email them at customerservice@onntvsupport.com.

If your TV’s warranty has expired, consider taking your TV to a nearby repair shop for a professional diagnosis and fix.

Does Onn TV have good sound quality?

I do have an ONN 4K TV for my outdoor living area, and I must say, its sound quality surpasses the TCL TV in my bedroom.

I’m considering getting one more for my room and the rest of my house too.

Why is my Onn Roku TV volume so low?

I found that resetting your Roku TV through its settings can resolve the issue of low volume. I suggest you try this method:

  • Navigate to the Settings menu.
  • Then, proceed to the System.
  • Once there, select Power and then opt for System Restart.

This should reboot your sound system and possibly fix the Onn tv volume issue.

Does Onn TV have Dolby Atmos?

Yes, ONN TVs do come with Dolby Atmos. For example, this ONN 50” QLED 4K UHD (2160p) Roku Smart TV comes with Dolby Digital Atmos and is available on Walmart for just $378.00.


ONN TVs experience occasional sound issues due to glitches, outdated software, damaged hardware, or poor connections. You can likely diagnose and solve these issues by following the steps above, including checking your remote and connections, adjusting volume settings, changing audio inputs, and performing various TV resets. If all else fails, contact ONN Roku TV support for additional guidance. 

Keshav Krishnan

I am an Engineer and passionate about Smart Homes and Home Improvements and spent years using, designing & working with Smart Home devices. I am on a mission to make Home Automation easy and affordable for everyone.

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