Why Does My Vizio TV Turn Off By Itself?


Vizio is a popular American electronics company that mainly produces TVs and sound bars. Vizio is often regarded as a “budget” electronics company, as they typically sell their products at lower prices compared to their competitors.  

While Vizio TVs don’t necessarily have that “high-end” feel that TVs from other manufacturers have, it’s generally agreed that Vizio makes TVs with solid quality that are good value overall. However, many people have reported that their Vizio TVs will occasionally turn themselves off without warning, and it’s not always clear why this might be happening. 

Today, we’ll be taking a look at some of the likely reasons why your Vizio TV might be turning itself off, and we’ll give you some tips that you can use to troubleshoot some of these problems. 

Reasons Your Vizio TV Might Be Turning Itself Off:

As we’ve mentioned, plenty of people over the years have dealt with their Vizio TVs shutting off on their own. There doesn’t seem to be any single specific reason for this that is more common than any other; the reason Vizio TVs keep shutting off on their own tends to vary from person to person. 

Here are several potential reasons why your Vizio TV might be turning itself off: 

An Issue with the Power Supply 

As you might expect, a faulty power supply can easily cause your TV to turn itself off on its own. Your TV’s power supply may be interrupted because the power supply board is malfunctioning, or it may be a heat issue that is causing your TV to power itself off automatically. 

If you think the issue is being caused by defective hardware, you can try replacing your TV’s power supply board on your own and see if that helps (if you’re confident enough to work on your own electronics, of course). If you think the problem is being caused by overheating, there are several steps you can take to try and fix this; we’ll discuss these steps in a later section. 

An even simpler explanation may be that your power cord just isn’t connected to your TV quite right. This issue is more likely to result in your TV not turning on at all, rather than your TV turning itself off for no reason; nonetheless, it may be worth it to simply try plugging your power cord in again and see if that fixes your problem. 

An Issue with Your TV’s Settings 

Plenty of modern TVs, including Vizio TVs, come with power-saving options that are intended to keep the power consumption of your TV down. However, sometimes these power-saving options can interfere with your regular TV watching and cause a variety of issues. 

Many Vizio TVs come with a “Sleep Timer” feature that will automatically shut your TV off after a certain amount of time has passed. This feature is disabled by default, but if you somehow managed to accidentally enable it without realizing it, then it may indeed seem as though your TV is turning itself off for no reason. 

Vizio TVs also come with an “Auto Power Off” feature, which automatically turns your TV off after 10 minutes if it doesn’t detect an audio or video signal. Both of these features can be turned off; we’ll explain how to do this later. 

An Issue with Your TV’s Firmware 

It’s entirely possible that your TV’s issues are being caused by a bug in its firmware. If you’re not familiar with the term, firmware is a type of software that is used to make a device run properly. In contrast with software, which controls your smart TV’s operating system and its various applications, firmware is more closely connected with the overall functionality of your device. 

Unfortunately, if you think your problem is being caused by a bug in your firmware, there’s not much you can do to fix it. In most cases, your TV will need a firmware update from Vizio before it will work again.  

How to Stop Your Vizio TV From Turning Itself Off:

While some of the reasons your Vizio might be turning itself off can be dealt with pretty easily, others might require a more in-depth explanation. In this section, we’ll go over some of the more complex methods of fixing your Vizio TV that you might want to try. 

How to Deal with Overheating Issues 

Your TV may be overheating because of poor ventilation, or it may be because some of your video settings are too demanding. Here’s how you can deal with both of these issues: 

For Poor Ventilation: 

  1. Move your TV away from the wall and point a fan towards the cooling vents which are usually located near the bottom or on the sides of the TV. If this helps your TV stay on a bit longer, then it’s definitely an overheating issue. 
  1. Install a USB-powered cooling fan in your TV. You can do this yourself if you’re comfortable with it, but otherwise, you’ll probably want to get in touch with a TV repairman for this step. 

For Video Settings: 

  1. Open up the menu on your TV and navigate to Video Settings. 
  1. Find the values for Brightness, Contrast, Sharpness, and Colour, and lower all of these values by about 10 to 15. This may help to reduce the load on your video processor and prevent it from overheating as quickly. 

How to Adjust Your Power Settings 

  1. Open up the menu on your TV and navigate to Timers. 
  1. In the Timers menu, you can choose whether you want both the Sleep Timer and the Auto Power Off feature to be active.  

How to Perform a Factory Reset 

If all else fails, you can always try and perform a factory reset on your TV and see if that works. Here’s how to do so: 

  1. Open up the menu on your TV and navigate to System. 
  1. In the System menu, select Reset ; Admin. 
  1. In the Reset ; Admin menu, select “Reset TV to Factory Defaults.” 
  1. Your TV will then ask you to input your parental code. If you haven’t changed the code from its default, enter “0000”. 
  1. Select Reset. The TV will then restart itself and the setup process will begin. 

Final Thoughts 

While Vizio TVs offer good value for money, they’re certainly not perfect devices. As we’ve seen, there are many possible reasons why your Vizio might be turning off by itself, and not all of these issues are easy to deal with. 

If you’ve tried every possible fix and nothing’s working, it may be worth it to see if your TV is still covered under Vizio’s warranty. If not, we’d suggest reaching out to an independent repair technician and asking them if they think your TV can be fixed for a reasonable price. 

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