How to Fix a Samsung TV That Keeps Turning On and Off

If your Samsung TV keeps turning on and off, it could be due to power problems. To resolve the problem, make sure the power cord is securely connected to both the outlet and television itself.

Another potential cause of this issue could be your television overheating. To prevent this, ensure there is adequate airflow and ventilation in your home.

1. Power supply

If your Samsung television keeps turning on and off, it could be due to a power supply problem. In this instance, unplug it and wait a few moments before plugging it back in; this should resolve the issue.

If you have exhausted all other methods and still can’t turn your television on, check the standby light. This is the red light located at the lower edge of your tv when in standby mode or connected to an outlet. If this light is out, take a look at whether there is power available.

Your television’s standby light will blink if there is an issue with its power supply. This is usually an easy-to-detect indicator, so be sure to inspect it promptly.

However, if the power supply is working but your backlight is dimming, this could be indicative of a hardware problem such as a capacitor. This small chip powers many electronics in your TV and it can become damaged from an abrupt spike in voltage.

Another potential cause for a Samsung TV that won’t turn on is an issue with its HDMI cable connection to your television. Sometimes these can get tangled up in each other and prevent proper voltage delivery to work properly.

One way to test the HDMI cable is to unplug it from your television and reconnect it. If the backlight does not illuminate, that indicates that the HDMI cable cannot reach its power supply.

Though this can be a frustrating situation, don’t despair. Most of the time, this issue is an easy fix that can be handled quickly and effortlessly.


If you own a Samsung TV, chances are it has an HDMI port on the back that can be used to connect other devices. This makes watching movies, television shows and video games on larger screens possible.

HDMI provides access to a number of features you may find useful, such as consumer electronics control (CEC), one-touch play and system standby. While not all devices support these functions, having them available can be an invaluable convenience.

HDMI ports enable devices to be controlled by the same remote that controls all other devices on your home network, making it simple to adjust inputs on the TV, adjust volume and set a sleep timer without having to modify remote settings across each device.

However, if the HDMI port isn’t functioning optimally, you might experience problems with other devices as well. Signs of trouble include no image, signal dropout or incorrect resolution from the source device being used.

Check your device’s HDMI cable for broken, frayed or split sections that could be causing issues. Also, ensure the device is using an HDCP-compliant cable compatible with your television set.

Another solution to try is unplugging both your TV and other device from their power sources, disconnecting both HDMI cables, then reconnect them. This should reset any issues with the connection so you should be able to get a clear picture on your television once more.

You can also enable the ARC feature on your TV, which sends audio from the TV out to an external speaker via HDMI connection. This enables you to listen to your TV with an amplified sound system if you have enough room for one.

3. Anynet+

Anynet+ is a feature available on Samsung TVs that enables you to link up compatible devices like your soundbar, Blu-ray player and Home Theatre System with one click from your remote control. It makes switching between devices easier too; simply press one button and you’re all set!

Anynet works through HDMI Consumer Electronics Control (CEC) technology, enabling your TV to control an external device connected via an HDMI cable. Compatible with most Samsung televisions, CEC technology is an ideal way to simplify your home entertainment setup and bring together different components.

To enable Anynet+ on your Samsung TV, you need to connect an HDMI-CEC-enabled device and activate it through the settings menu. This process may take up to two minutes.

Your TV will begin scanning for all connected devices and then sync with them. After this has been completed, it will begin automatically connecting and turning on those linked to it.

If you’re not satisfied with the results, you can disable Anynet+ by going into the settings menu and selecting that option to disable it. Note: this may require plugging out your device’s power cord for a few seconds in order to reset it.

Once that’s done, you can re-enable Anynet+. Just make sure that any external devices connected to your TV via HDMI cable are also HDMI-CEC capable and enabled for this protocol.

Anynet+ is an excellent way to streamline your home entertainment setup and make it more efficient. However, keep in mind that this system works only with Samsung products that support Anynet+; if you’re uncertain whether your product supports Anynet+, contact customer service for further instructions.

4. Sleep timer

Your Samsung TV or Roku streaming stick offers the sleep timer feature, which lets you automatically turn off your device after a certain period. This is useful when binge watching shows on Netflix or keeping it powered off until after work when you return home.

One possible issue that may cause your Samsung TV to power on and off by itself is the Eco Solution or Sleep Timer. These features help save electricity by turning off the television when there is no input for a specified period of time.

By default, the Eco-Solution option is enabled. To disable it, select Settings > General. Under Eco Solution, click on the Auto Power Off button to begin.

If your Samsung TV is still turning on and off by itself, try manually turning it off. If this does not solve the issue, you may need to update the software of your television.

One of the most common reasons for a Samsung TV to keep turning on and off by itself is an outdated firmware version. You can download the most up-to-date software update from either your television’s website or via USB drive.

This update should resolve many of your television’s technical problems. It also brings your television’s video and audio settings up to date.

Finally, you can try to disable the Eco Solution and Sleep Timer on your Samsung TV by unplugging it from its power outlet for 30 seconds. This should reset the television and resolve any issues you are currently encountering.

5. Other devices

If your Samsung TV keeps turning on and off, there are several steps you can take to resolve the problem. These include checking for power issues, connecting it to another outlet, performing a soft reset, and more.

First, ensure your power cord isn’t damaged. If it’s shaking or not securely attached to the outlet, it could cause your TV to turn off abruptly. To resolve this problem, unplug the TV from its current outlet and plugging into another one may help; if that doesn’t solve it, replace the power cord altogether.

Another potential cause is a malfunctioning power surge protector. This can prevent your television from getting enough juice to stay on, leading to frequent shutoffs. To test this hypothesis, bypass the surge protector and plug your television directly into an ordinary outlet.

It should give you an indication of whether your surge protector is malfunctioning; however, if it remains the culprit, replacing it may be necessary. Furthermore, look for any shorts in the board as these can cause the TV to shut off automatically.

Finally, inspect all devices connected to your Samsung TV. These could include routers, HDMI devices, USB wireless LAN adaptors and any other connected items. If they aren’t properly connected or have an incorrect connection type, it could cause your television to shut off automatically.

These tips should help fix your Samsung TV so it stops turning on and off every 5 seconds. If the issue persists, feel free to reach out directly to Samsung for assistance in fixing it.

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