Due to their high quality and durability, Samsung TVs are among the most popular models. Unfortunately, Samsung TVs sometimes malfunction. When this happens, how can we troubleshoot? 

You might be experiencing the following problems with your Samsung TV:

1. An issue with the power supply
2. Anynet + (HDMI-CEC) is enabled
3. There is a virus on your TV
4. Overheating of the TV
5. Update the software on your TV
6. There is a short in the cable connecting your main board and power supply board
7. The capacitors on the TV’s motherboard are malfunctioning

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Why My Samsung TV Keeps Turning Off Every 5 Seconds?

Samsung tv turns off by itself after few seconds

Hopefully, we can begin with some easy fixes, and then we can move on to serious fixes that require a bit of disassembly.

Power supply problems

Sometimes the answer lies in checking the outlet and power cord.

A lack of power will cause your Samsung TV to automatically shut off after five seconds since it won’t be able to maintain itself.

Here are some steps you can take if that is the problem:

1. Check the power cord first for any problems. If it becomes damaged or broken, it needs to be replaced. 
2. Next, investigate whether the outlet is experiencing a power problem. Disconnect the TV from the outlet and try a different one. 
3. If the outlet you are trying to use does not work, you can test it by plugging in another electronic device.

Note: It is also possible that you are using a surge protector or an extension cord that is causing the problem. Please check both before you replace your power cord.

We recommend plugging the TV directly into the wall and eliminating the surge protector and extension cords.

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Anynet+ (HDMI-CEC) is ON

A HDMI feature called HDMI Consumer Electronics Control (HDMI-CEC) makes your connected devices more cooperative.

The HDMI adapter enables your HDMI-connected devices to access your TV, and your TV to access your devices.

HDMI-CEC, for example, enables your television to control your DVD player. DVD players can change the TV’s input to HDMI when they are turned on, as well.

HDMI devices may be configured by default to turn off the TV whenever they turn off.

You should check Samsung’s Anynet+ feature (also known as HDMI-CEC) if your TV is auto-switching off.

You can do so by pressing the HOME button on your remote and then going to SETTINGS > GENERAL > EXTERNAL DEVICE MANAGER > ANYNET+ > OFF.

If you would like to control any other device with your TV remote, you will no longer be able to do so.

Disabling Anynet+ will see if your issue is resolved. If your Samsung TV does not shut off every 5 seconds, there are several other factors that may be at play.

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The System Is Corrupted

In addition to its corrupted system, your Samsung TV may be turning off every 5 seconds. Just like computers, smart TVs can get infected with viruses when they are used to download files or access the Internet. 

The internal components of your TV may be impacted by a virus. The TV will turn off every five seconds if that is the case. 

Here’s how you can determine whether the system on your TV is corrupt:

1. The Settings menu can be accessed by using your remote.
2. Go to the menu and select General.
3. Select System Manager.
4. Choosing Smart Security is the next step.
5. There is an option called Scan. Click on it. 
6. An automatic virus scan will be performed by your TV.

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To reset the TV if it turns itself off before scanning, try powering it on and off again. The Samsung TV is rebooted, erasing any viruses. 

The steps are as follows: 

1. Unplug your TV and turn it off.
2. Keep holding the TV’s Power button for two minutes (avoid using the remote and the TV power button!). 
3. The TV should now be connected to an outlet.
4. By turning it on, you can determine whether the problem persists.

If your TV keeps turning off, you can also perform a hard reset. Rebooting your TV to its factory settings means losing all your settings and information. 

Here’s how to do it: 

1. In the Settings menu, you can find your TV’s settings.
2. Choose Reset from the menu. Select your PIN to reset the TV. If you hadn’t changed your PIN when you bought the device, you can use its default PIN: 0000.
3. You will see your TV automatically restart when you select OK.

The Reset option may be located in a different menu on some models. Therefore, if you are unable to locate it, go to Support and select Self Diagnosis. Select Reset from the menu. 

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Overheating Samsung TV

If your Samsung TV is not properly ventilated, it may also turn off automatically.

TVs can overheat and malfunction without proper airflow and ventilation.

You can take the following steps if that’s the case: 

1. Turn off your TV.
2. Using a microfiber cloth, wipe all dust from the back of the TV.
3. It can result in overheating when a blockage prevents ventilation. Make sure that the vents are not blocked.

Keeping a room cool requires the installation of an air conditioner or choosing a room with better ventilation.

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Samsung TVs need an update

To ensure that a Smart TV works properly, the system must be updated constantly. A TV that is behind in its software updates may malfunction. 

Your TV model needs a firmware update that is the latest available.

The following steps must be taken:

1. Select Settings from the menu.
2. Choose the Support option.
3. Click on Software Update.
4. You can update your software by choosing this option.

Auto-updates will occur on your TV. You will receive a notification from your TV when it’s complete, but it may take a few minutes. 

You may also love to read: How to connect Samsung TV to your Wifi Network?

Samsung TV has a power short

You will see a cable running from the main board to the power supply board when you take off the back panel of your Samsung TV.

A short between these two boards can occasionally occur due to this cable. A TV will turn on and off as a result.

Getting rid of the short will be as simple as removing the fourth pin from the top pin of this cable connection.

Pull out the cable by pushing in and prying up. Your TV’s main board will automatically reboot if this signal stops shorting out.

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The Motherboard Is Failing

It can also be a faulty motherboard that causes your TV to turn off every 5 seconds.

As the communication hub for the various parts of the TV, the motherboard facilitates all electrical connections. In the event of a motherboard failure, the television will not function.  

This problem is most commonly caused by a failed capacitor on the motherboard. It is common for capacitors to fail due to an electrical surge caused by a lightning storm.

If the motherboard needs to be serviced professionally or if a new one is needed, you should get it done.

By lifting off the back panel of your TV and looking at the motherboard closely, you may be able to see swollen capacitors.

Purchase new ones and replace the bad ones if you think you’ve found the culprit(s).

You may also love to read: Samsung 7 series vs 8 series 

Conclusion

Despite being some of the most durable TVs available, Samsung TVs are not flawless. Like any other device, they can malfunction. 

My Samsung TV Keeps Turning Off Every 5 Seconds for a variety of reasons:

1. Power cords or sockets are not working. If this is the case, a new cable or socket can be installed to fix the issue. 
2. Whenever your TV is turned off, Anynet + (HDMI-CEC) is turning it off because of another nearby connected device. Make sure Anynet + is turned off!
3. You have a corrupted smart TV system on your Samsung. You must power reset the TV in order to fix the problem. 
4. Ventilation is insufficient on your TV. Remove dust from its back and clean it thoroughly. Alternatively, move to a more airy room. 
5. Samsung TVs need to be updated. Be sure to check the firmware regularly to avoid this issue. 
6. You have a short cable connecting your main board and power supply board. Disconnect the fourth pin of the connector at the end of the cable to resolve the problem.
7. The TV’s motherboard has a problem. You will need to get your TV serviced or replace it if it is broken. 

Hope you have find solutions about My Samsung TV Keeps Turning Off Every 5 Seconds. How did you find these troubleshooting tips useful? Share your thoughts below!

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