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Why Does My Samsung TV Keep Turning On By Itself? (11 Reasons)

Why Does My Samsung TV Keep Turning On By Itself? Samsung TVs are a great addition to any smart home.

They enable you to watch all of your favorite shows and movies on streaming devices or, if you have one, on a DVD player.

If your Samsung TV keeps turning on by itself, it could be because your HDMI devices are doing so.

When you turn on your other Samsung devices, SmartThings can also turn on your TV. Old TV software or sleep timers can also cause the TV to turn on automatically.

You may be wondering what these issues mean and, more importantly, how to resolve them.

Don’t be concerned.

In this article, we will go over all of the troubleshooting tips and fixes in greater detail.

Why Does My Samsung TV Keep Turning On By Itself?
Why Does My Samsung TV Keep Turning On By Itself?

Why Does My Samsung TV Keep Turning On By Itself?

Foreign matter around the power button on the remote control, external devices linked to the TV, and your settings are the most typical causes for the TV to switch on by itself. Clean the remote control if the power button is stuck.

Why Does My Samsung TV Keep Turning On By Itself?
Why Does My Samsung TV Keep Turning On By Itself?

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SAMSUNG TV KEEPS TURNING ON BY ITSELF? 

The most common cause of your TV turning on by itself is a problem with your HDMI connections. HDMI-connected devices can control your Samsung tv and other devices like apple tv, lg TV and the devices connected to it in part.

In some cases, HDMI devices are set to turn on the TV automatically when powered on. When you turn on the DVD player or other HDMI-connected devices, your TV may turn on automatically.

This feature is known as Anynet+ by Samsung. It is normal for your TV to turn on by itself when using these devices. If the feature bothers you, you can always disable it to fix Samsung tv:

  • Click the Home button on your remote. 
  • Click Settings
  • Choose General. 
  • Choose External Device Manager.
  • Choose Anynet+.
  • Toggle it off.

If your TV still turns on without you pressing the power button after going through these settings, the issue may not be with your HDMI. Several other reasons your TV may turn on without your intervention and just show a black screen.

The following are some of the most common issues and how to resolve them.

SAMSUNG TV KEEPS TURNING ON BY ITSELF? 
SAMSUNG TV KEEPS TURNING ON BY ITSELF? 

1. Disable Anynet+ (Hdmi-cec)

HDMI Consumer Electronics Control (HDMI-CEC) is an HDMI feature that improves the interoperability of your connected devices. It allows your HDMI-connected devices to control your TV and your TV to control your devices.

For example, with HDMI device, you could use your TV remote to control your DVD player. When you turn on your DVD player, it could automatically change the input on your TV to HDMI.

In some cases, HDMI devices are set to turn on the TV automatically when they power on. Because your TV is turning on by itself, you should begin your troubleshooting process with Anynet+ (also known as HDMI-CEC) and smart hub.

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Click the HOME button on your remote and go to SETTINGS > GENERAL > EXTERNAL DEVICE MANAGER > ANYNET+ > OFF.

Keep in mind that you will no longer be able to control other devices with your TV remote. Wait to see if turning off Anynet+ resolves your problem. If it doesn’t, there are a few other likely causes for your Samsung TV to turn on by itself, try to also check the power cord.

But, before we get there, there are a few more simple steps you should take before things get complicated.

How to disable and turn off Anynet+ HDMI CEC on Samsung Smart TV - YouTube
Disable Anynet+ (Hdmi-cec)

2. Tighten Power Supply Cable

Depending on the year and model of your Samsung TV, you may or may not be able to remove the back cover. The power supply cable will be exposed as a result of this.

I recommend disconnecting and reconnecting this cable, making sure it is snug and fully plugged in. Many owners of older Samsung TVs or Tv’s with google home have reported that this fix works. Regardless of whether or not this covering exists, make sure all of your cables and power cord are in good condition and securely connected!

3. Disable SmartThings

SmartThings is built into some Samsung televisions. SmartThings allows you to connect to and control multiple devices from anywhere. If you enable this feature, your TV could be turned on by another streaming device in your home. Regardless, it’s worth double-checking to make sure it’s turned off.

To turn off SmartThings, navigate to Settings > General > select Network > Expert Settings > Power On with Mobile and toggle it off.

4. Update your TV’s software

Running outdated Samsung software on your TV can result in a variety of issues. Normally, your TV will automatically download the most recent version for you, but this does not always happen.

I would simply ensure that the software on your television is up to date. You can find step-by-step instructions for doing this here. Please keep in mind that after a software update, your video and audio settings may be reset to their defaults by auto power.

5. Power-cycle your Samsung TV

Everyone prefers to skip this step, but power-cycling your TV, or any electronic device, solves the majority of problems! To restart your Samsung TV, unplug it from the wall and wait 30 seconds in your connected device.

After 30 seconds, press and hold the power button on the television or use your universal remote (not the remote) for 10-15 seconds. This aids in the removal of any residual power stored in the television.

Now, reconnect the television. Check to see if the reset helped at all. If that doesn’t work, there are two more simple things to try before we get into the complicated stuff.

Both would typically cause your TV to turn OFF unexpectedly, but the since your TV is turning ON by itself, it’s still worth disabling anything and everything that controls your TVs power supply on wall outlet.

6. Disable Sleep Timer

Sleep mode timers are good ways to save energy and are typically used to turn off your television at a predetermined time in just 5 seconds. Let’s make sure it’s turned off.

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To turn off your sleep timer, first go to select SETTINGS on your remote control (or select HOME on your remote and the scroll left until you find SETTINGS).

Scroll down to GENERAL and press OK to select it in your tv screen. Scroll down to SYSTEM MANAGER, and then to TIME. From here, look for SLEEP TIMER and OFF TIMER, and see if either is enabled. If they are, I recommend turning them off and seeing if the problem persists.

7. Disable Eco mode

Eco mode is also available on Samsung televisions. This mode controls various settings on your TV automatically to save energy whenever possible.

These settings can sometimes take on a life of their own, and it’s worth turning them off if you’re already having problems. To turn off your Eco mode, first go to SETTINGS on your remote control (or select HOME on your remote and the scroll left until you find SETTINGS).

Scroll down to GENERAL, then ECO SOLUTION, and see if any of these Eco settings are enabled. If they are, it might be worth turning them off to see if the problem persists.

Ok, if you’ve tried the above steps but you’re still having issues, it’s time to cover some of the more complex issues known to cause Samsung TVs to turn on by themselves.

8. Replace faulty PSB capacitors

Capacitors are an important component of television Power Supply Boards (PSB). Consider them energy storage facilities; they smooth out voltage spikes caused by lightning or the opening and closing of electrical switches.

They provide a steady, predictable electrical current to the circuits in your television! That is, when they function properly.

Unfortunately, Samsung has a history of using undersized capacitors in many of their televisions. To be specific, two capacitors on the Power Supply Board (470uf to 3300uf 10v).

These faulty capacitors are essentially known flaws. A class action lawsuit was filed in 2012, followed by another in 2017. Both lawsuits claimed that faulty capacitors caused Samsung televisions to turn on and off on their own.

Of course, Samsung settled these lawsuits and admitted no wrongdoing. If you’re feeling adventurous, you can remove the back paneling of your TV and inspect the capacitors on your PSB to see if they’re swollen or leaking. Faulty capacitors are frequently visible with the naked eye.

If you can’t spot the exact capacitor/capacitors that are at fault, consider replacing the entire power board. However, if you do find the capacitor that’s the culprit, you’ll need to order a similar capacitor with same or greater values and then use a soldering tool to remove the bad one and replace it.

9. Replace The Main Logic Board

If you’ve replaced your PSB (or the faulty PSB capacitors) but your Samsung TV continues to turn on by itself, the problem is most likely with your main logic board.

You should replace the entire board. This problem is caused by a fried IC (integrated circuit, or microchip) on the main logic board, which is a fairly common issue in Samsung TVs. Check to see if any of the ICs on the board are discolored or appear to be burnt.

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Each chip’s numbers should be visible to you. If you can’t read a chip, that’s most likely the culprit. See the video below for step-by-step instructions on how to do this properly.

10. Samsung TV support

If you can’t solve the problem on your own, it’s probably worth contacting Samsung support. They provide a variety of service options, including in-home service and mail-in options.

The cost of this service will vary depending on the final diagnosis and whether or not the work is warranted. The good news is that a certified Samsung technician will inspect your device.

11. Samsung TV guarantee

You can also look online to see if Samsung’s warranty covers your television. Unfortunately, Samsung TV warranties typically last one year, and the majority of cases I’ve heard of TVs turning on by themselves are on several years old TVs. It’s still worth a shot.

Why Does My Tv Keeps Turning On and Off Repeatedly

There is no guarantee that something is wrong with a television that switches on or off by itself. In most cases, the issue is something uncomplicated and quickly resolved. There could be a problem with the power button on the remote, or perhaps the batteries in the remote are running low. There is a chance that an internal timer will be programmed to turn on the TV by accident.

CONCLUSION On Why Does My Samsung TV Keep Turning On By Itself?

It can be aggravating to have a Samsung TV turn on by itself. It can also consume electricity if it occurs when you are not at home and the TV is left on for several hours. Typically, the TV will turn on by itself due to faulty HDMI connections, a faulty power supply, or a problem with SmartThings or outdated TV software.

FAQs On Why Does My Samsung TV Keep Turning On By Itself?

Why does my Samsung Smart TV keep restarting?

If your Samsung Smart TV repeatedly restarts, it could be due to outdated software or faulty power cables. In the case of software, a simple restart is all that is required to resolve the issue. You can also inspect and repair cables on your own.

Why is my Samsung TV not turning off?

If your Samsung TV does not turn off, press the power button on the TV and check the remote batteries to see if they need to be replaced. If it keeps shutting down, make sure the HDMI and power cables are securely connected.

Why does my Samsung TV turn on and off repeatedly?

If your Samsung Smart TV is power cycling (turning off and on repeatedly), it could be that the device is damaged or that it simply needs to be updated.

Do Samsung televisions turn themselves off?

Samsung smart televisions are sophisticated devices that can turn off on their own. In most cases, this is by design, but it can become a problem if the behavior is disliked by the TV owner.

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