Samsung TVs are a great addition to any smart home. They allow you to watch all your favorite shows and movies, either on streaming devices or through a DVD player if you have one. Just like with any piece of technology, they are prone to problems sometimes. If you notice your Samsung TV keeps turning on by itself, there are several issues that could be going on. 

If the Samsung TV keeps turning on by itself, it might be because your HDMI devices are automatically turning it on. SmartThings can also turn your TV on when you turn on your other Samsung devices. Old TV software or sleep timers can also trigger the TV to turn on by itself. 

You might be wondering what exactly these problems mean and more importantly, how to fix them. Don’t worry. We will go over all the troubleshooting tips and fixes in greater detail in this article. 

Samsung TV Keeps Turning On by Itself? 

The most common reason your TV might be turning on by itself is because of your HDMI connections. HDMI-connected devices are able to partially control your TV and the devices connected to the TV. 

In some cases, HDMI devices are configured to turn the TV on automatically when they turn on. Whenever you turn the DVD player on or other HDMI-connected devices on, your TV might automatically turn on. 

Samsung calls this feature Anynet+. This is normal for your TV to turn itself on with these devices. If the feature bothers you though, you can always turn it off:

  1. Click the Home button on your remote. 
  2. Click Settings. 
  3. Choose General. 
  4. Choose External Device Manager.
  5. Choose Anynet+.
  6. Toggle it off. 

If your TV is still turning itself on without you hitting the power button after going through these settings, then the problem might not be with your HDMI. 

There are several other reasons why your TV might turn itself on without you prompting it to do so. Below are some of the most common problems and how to fix them. 

Loose Power Supply Cable 

A loose power supply cable can cause your TV to turn itself on. It can also cause other signal problems with your TV. If you have a newer model of Samsung TV, you will need to remove the back covering on your TV to see the power supply cable. 

Follow these steps to tighten the cable:

  1. Disconnect the cable. 
  2. Leave it disconnected for 10-15 minutes. 
  3. Reconnect it by pushing it in gently all the way. Ensure it’s fully plugged in. 

While you’re checking the cable, make sure all your cables on the back of the TV are fully plugged in and in good condition. 

Disable SmartThings 

Many of the new Samsung TVs have SmartThings built-in. SmartThings allows you to connect and control many multiple devices. If you have this feature turned on, you will find that your TV will turn on when you turn on other connected Samsung TVs. 

You will need to disable SmartThings to keep your TV from turning on:

  1. Go to Settings. 
  2. Click General. 
  3. Choose Network. 
  4. Choose Expert Settings. 
  5. Choose Power On with Mobile. 
  6. Turn it Off. 

Updating TV Software 

New updates to the TV can cause it to have some bugs and turn on automatically. Running on old TV software can also cause your TV to have bugs. If you have recently updated the software and now your TV is turning on randomly, contact Samsung and report the bug. 

If you are running on old TV software, update your TV to ensure the problem stops:

  1. Go to Settings. 
  2. Choose Support. 
  3. Choose Software Update. 
  4. Select Update Now. 

All the new updates will be put on your TV. It will restart once it’s finished. Click OK to exit. Give your TV some time to see if this fixes the issue. You might also want to consider letting your TV do automatic updates in the future, so you don’t have to worry about remembering to manually do it. 

Disable Sleep Timer 

Sleep timer is a great way to conserve energy, but sometimes it can cause the TV to turn off and on randomly. You might want to make sure they are disabled if you’re having problems:

  1. Go to Settings. 
  2. Choose General. 
  3. Choose System Manager. 
  4. Choose Time. 
  5. Select Sleep Timer. 
  6. Choose Off Timer. 

If you would like to learn more about Samsung TVs, take a look at our article here.

Final Thoughts 

Having a Samsung TV turn on by itself can be frustrating. It can also spend electricity if it happens when you’re not home and the TV is left on for hours. Usually, the TV will turn on by itself due to HDMI connections, a loose power supply, or an issue with SmartThings or old TV software.