How to Fix a TV that Keeps Turning OFF By itself


Why does my TV keep shutting OFF by itself?

The main reason why a TV keeps shutting off by itself is because of a power outage, a faulty power supply or the power saving setting is turned on.

 

  • Problems with power system
  • Problems with connected devices
  • Power outage
  • Dust
  • Moisture
  • Sleep timer
  • Power-saving feature
  • Outdated software
  • Problems with hardware or mainboard

As mentioned above, the problem may also be due to dust, moisture, a sleep timer, a power-saving feature or problems with hardware or the mainboard.

 

How do you fix a smart TV that keeps turning OFF?

If your TV keeps turning off and doesn’t stay ON, you can fix it on your own if you follow the tips mentioned below:

 

Problems with the power system

  1. Check if the power cable is in good condition. If there are any breaks and cuts, they should be replaced.
  2. Check the plug and socket to find if they are properly connected. If not, connect them correctly.
  3. Plug your TV into a different socket if the problem is with the socket.
  4. Replace the power supply capacitors with new ones there is a sudden surge in the power supply as it can affect them, especially if they are old. 

 

Problems with connected devices

External devices like remote control or a HDMI enabled device can trigger your TV to shut off automatically. 

  1. Check your remote control. If one of its buttons is stuck, it could be the reason. Clean your remote and make sure the buttons work properly. 
  2. Replace the remote control battery if it’s old and low.It may start to send random signals to the TV. 
  3. Turn OFF the automatic HDMI switching feature.If your TV has an HDMI-CEC feature, it will allow the TV to switch sources. 
  4. Disconnect the TV from Wi-Fi. Smart devices like Alexa or Harmony can cause your TV to switch off accidentally. Your mobile phone could also be a reason if your TV has the in-casting feature.If the problem is solved, you should start to find which device is why the TV shuts off.  

 

Power outage

Your TV may turn OFFif there is a brief power outage. Most of the time, it will turn on when the power supply is back. If it does not turn on again you can try the following steps.

  1. To power drain your TV all you have to do is unplug your TV.
  2. Press and hold the Power button for a few seconds. This will help to drain out the residual power remaining. 
  3. Plug the TV in again and turn it ON. 
  4. Plug the TV directly into a wall outlet if the power outage caused problems to the surge protectors. 

 

Dust 

When dust gets collected on the electronic board of the TV, it can cause overheating of the components. The overheating protection feature in the TV will turn the device OFF. To fix this issue, you should wipe it clean from time to time. 

  1. Unscrew the screws at the back. 
  2. Pull off the cover.
  3. Use a soft brush to clean the dust. 

 

Moisture 

  1. Clean the deposits of moisture as it can cause the possibility of short circuits,
  2. Electronic boards corroded because of moisture can be fixed by applying a few drops of solder. 

 

Sleep Timer

To stop the TV from shutting OFF automatically, follow the following steps.

  1. Turn the TV ON. 
  2. PressMenu on your remote control.
  3. Select the Setup menu.
  4. Select the Time menu.
  5. Turn OFF the Timer mode. 
  6. Exit the settings by pressing the Exit button.         

 

Power-saving feature 

Turn OFF the Auto Power OFF feature that is present in modern TVs to save energy. 

 

Outdated software

Update your TV’s software.

  1. Press Menu on the remote control.
  2. Select the TV Update setting.
  3. Click on Update Now. 

 

Problems in the mainboard

Get the help of a professional to fix the issue if the problem is not solved after trying one or more of the above steps. Problems in the hardware or the mainboard can be serious; don’t try to fix them yourself. 

 

TV turning off by itself

 

Why does my TV keep turning off after a few seconds? 

Your TV keeps turning OFF after a few seconds because of the problems with power cables or the external devices connected. Fluctuations in the power supply and onboard memory can also cause the problem. 

 

Power cables 

  1. Check the power cables to ensure there are no power supply issues. 
  2. Fix the cable correctly into the socket. 
  3. Plug the TV directly into the wall in place of the power strip you are using. 
  4. Change the cables if they are damaged. 

 

External devices

  1. Disconnect your TV from external devices like cable boxes and gaming consoles etc. 
  2. Connect the device to a different input. This will help to confirm that there is no problem with the port. 
  3. Try switching the HDMI cable. This will detect if the issue was because of a faulty input cable. 

 

Fluctuations in power supply

Turn the TV off if you see any light flickering. This precautionary action could save your TV from getting damaged due to a surge in power. 

 

Onboard memory

Power cycle your TV to fix onboard memory issues in your TV. 

  1. Turn OFF the TV.
  2. Unplug the plug from the socket. 
  3. Wait for a few seconds. 
  4. Plug in the TV again.
  5. Switch it ON. 

 

Factory settings

Go back to factory settings to reset your TV. 

  1. PressMenu on the remote. 
  2. Select the Settings option. 
  3. Click Reset

 

Why does my TV keep turning OFF after a few minutes?

Your TV keeps turning OFF after a few minutes because of an accumulation of dirt and dust or a faulty remote control or bulged capacitor. A loose HDMI cable and turned ON Auto Shut OFF feature can also cause the issue. 

 

Dirt and dust 

  1. Clean the dust and dirt accumulated because dust can cause heat buildup. The trapped heat can make your TV turn OFF after a few minutes.
  2. Remove the rear cover. 
  3. Use compressed air to blow away the dust. 
  4. Wipe with a soft cloth to get rid of finer dust. 

 

If you are not confident in your skills to remove the rear cover and clean the inner parts, don’t do it. Call a technical expert to do it for you. 

 

Faulty remote control 

  1. Check if the remote control is the reason because it may give random signals if it is not working properly. 
  2. Replace the old batteries with new ones in the remote control. 
  3. Try operating the TV directly without using the remote control. If the TV doesn’t shut off by itself, you must repair or replace the remote control. 

 

Capacitors 

  1. Inspect the capacitors of the TV. 
  2. If the capacitors look bulged and not flat, replace them. Always go for high-voltage capacitors of high quality to avoid problems in the future. 

If you don’t have soldering skills, don’t do it yourself. 

 

HDMI cable 

  1. Check if the HDMI cable is loose. 
  2. Check the power cord to make sure it is fixed properly.

 

Auto shut OFF

  1. Check if there is an unusually high voltage in the current supply. The Auto shut-OFF feature will turn off the TV if it identifies high voltage and high temperature. 
  2. Turn off the feature in the settings. 

 

Why does my Samsung TV turn on and off randomly? 

Your Samsung TV may turn ON and OFF randomly if the Auto Power feature is ON or if the capacitors are blown. Outdated software and faulty power connections can also be the reasons. 

 

Power ON

Check the event logs to find the reason why the TV is turning OFF and ON randomly. 

  1. PressMenu on the TV remote.
  2. Select Support.
  3. Click on About TV. (About TV feature is available only in Samsung TVs manufactured in after or in 2019. 
  4. Check the event logs.
  5. Deactivate all apps connected to the device because they could be controlling your TV. 

 

Capacitors

  1. Check the capacitors of the TV.
  2. Replace any blown capacitors.

 

Power connections 

  1. Check if the HDMI cable is fixed correctly. If you have any doubts, remove and refix. 
  2. Look for signs of wear and tear in the power cables. 
  3. Disconnect the TV from the surge protector and connect it directly to the wall. 

 

Software update

Update your TV to the latest software because outdated software may result in all types of erratic behavior in your TV, including random turning ON and OFF. 

  1. Go to the menu of the television. 
  2. Select Settings.

 

Go to Support.

  1. Select Software Update.
  2. Click on Update Now.

 

Deactivate Anynet+

Turn OFFAnynet+as it turns ON the TV automatically whenever an external device like PlayStation or others is turned ON. 

  1. Go to Settings.
  2. Click on General.
  3. Go to External Device Manager.
  4. Turn OFF the Anynet+ option.

 

Why does my Samsung TV keep turning itself OFF? 

Your Samsung UA32T4340 TV may keep turning itself OFF if the Eco-solution settings or sleep timer settings are turned ON. Outdated software and problems with the motherboard may also be the causes. External devices and recalibration issues are also probable causes. 

 

Eco-Solution settings turned ON

Turn OFF the Eco-Solution settings that you might have turned on unknowingly. 

  1. PressSettings on your TV remote control. 
  2. Select General.
  3. Go to Eco-Solution.
  4. Select the feature Auto Power OFF.

 

Sleep timer setting turned ON

Turn off the Sleep Timer setting that you might have set for a pre-set time unknowingly.

  1. Go to Settings.
  2. Select General.
  3. Select System Manager.
  4. Click on Time.
  5. Select Sleep Timer.
  6. Turn the timer OFF. 

 

Outdated software

Update the software if it is outdated. 

  1. Switch your TV ON. 
  2. Go to Settings.
  3. Click on Support.
  4. Select Software Update.
  5. Click on Update Now. 
  6. Wait for up to 30 minutes until the software is updated. 
  7. Make sure the TV is not turned OFF while updating.
  8. Check for updates constantly and keep it updated to avoid minor issues. 

 

External devices 

  1. Unplug the external devices’ cables like game consoles connected to the TV. 
  2. Plug the cables back again.
  3. Make sure they are properly connected. 
  4. Set the Source to TV if no external devices are connected. 

 

Recalibration 

  1. Soft reset your TV to recalibrate it. 
  2. Unplug the TV for a few seconds.
  3. Plug it directly into a wall outlet. 

 

Problems with the motherboard

Contact an authorized expert if your TV keeps turning OFF after trying all the above-mentioned tips because you cannot fix the issues with the motherboard. 

 

Why does my TCL TV keep turning itself off? 

Your 40S6505 TCL TV may keep turning itself off because of residues or outdated software. Returned ON sleep timer and HDMI-CEC can also be the causes. 

 

Residues 

Restart your TV to eliminate the residues that cause it to turn OFF itself. 

  1. Turn the TV OFF.
  2. Unplug the power cable.
  3. Wait for a few seconds.
  4. Replug the power cord. 
  5. Switch the TV ON. 

 

Outdated system

Update the system if it is outdated.

  1. Go to Settings.
  2. Select System.
  3. Select System Update.
  4. Click on Update if any updates are available.

 

Sleep timer ON

Turn OFF the sleep timer if it is ON.

  1. Go to Settings followed by System, and then Timer.
  2. Click on Sleep Timer.
  3. Turn OFF the timer. 

 

HDMI-CEC

Turn OFF the HDMI-CEC if it is ON. 

  1. Go to Settings.
  2. Select System.
  3. Select Control other Devices (CEC)
  4. Deactivate all the devices that are turned ON. 

 

Power Cycling

  1. Switch your TV OFF. 
  2. Remove all cables and devices that are connected to your TV. 
  3. Let the TV remain switched OFF for a few minutes. 
  4. Plug in the cables and wires separately to find if there is any issue with any of them.
  5. Switch your TV ON.

Before trying all the above, ensure the power button on your remote control is not stuck. 

 

Why does my Sony TV keep turning itself off? 

Your Sony KD-5574K TV keeps turning itself off because of outdated software or faulty power cords. Problems in the remote control and wrong settings may also be the causes. 

 

Update software

For Google TV Model 

  1. Press Quick Settings on the remote control. 
  2. Go to Settings.
  3. Select System.
  4. Select About.
  5. Click on System update.

 

For the Android TV Model

  1. Press the Home button on the remote control.
  2. Go to Help. For the Android 8.0 model, go-to Apps and then Help
  3. Go to Status and Diagnostics.
  4. Select System Update.

 

Power cords 

  1. Check if the mains lead power cord is plugged in properly. 
  2. Ensure that the connection between the power cord and the adaptor is intact.
  3. Check if the power cord to the wall outlet is plugged in correctly.
  4. Remove surge suppressors and connect directly to the wall outlet.
  5. Try connecting the TV to a different outlet. 

 

Factory settings

For Google TV and Android TV

Reset the TV to the factory settings to stop the TV from turning itself OFF.

  1. Turn the TV OFF. 
  2. Remove the power cord from the outlet. 
  3. Leave it for a couple of minutes.
  4. Plug the power cord back into the outlet. 

 

Remote control 

  1. Remove the batteries from the remote control and insert new ones.
  2. Check if the issue persists. 
  3. If the problem is solved, it shows that the problem is with the remote control and not with the TV.

 

Why does my LG TV keeps shutting by itself? 

Your LG 43LEM5650PTA TV keeps shutting by itself because of wrong power connections and faulty TV settings. 

 

Power Connections

  1. Check if the cables are correctly connected. 
  2. Unplug your TV if you are using multiple sockets because the chances of voltage fluctuations are high when multiple sockets are used. 
  3. Plug a lamp into the wall to detect voltage fluctuations. Set the lamp to turn ON whenever you switch the TV ON. If the bulb emits bright light, the power supply is normal.

 

TV settings 

  1. Check that the auto settings of your TV are correctly made. The settings may have changed after a power failure or TV resetting.
  2. Deactivate the Eco function if it is activated. 
  3. Check if updates are available and if so, install them. 
  4. Make sure the Auto Shut OFF mode is not activated. 

 

TV reset 

  1. Unplug your TV from the outlet of the wall. 
  2. Keep it unplugged for a few minutes. 
  3. Plug the TV once again and restart your TV. 

 

Why does my Vizio TV keep turning itself OFF? 

Your Vizio TV keeps turning itself off because of stuck remote control buttons and a few wrongly turned-on features. 

 

Reset TV

  1. Turn OFF the device. 
  2. Unplug from the wall outlet. 
  3. Leave it OFF for a few minutes. This will discharge its memory and allow it to reboot. 

 

Remote Control button

  1. Check all the buttons of the remote control individually to make sure none of them is stuck. 
  2. Clean the dust and dirt in between the buttons with a cotton swab. 

 

Disable a few features

 

Disable Auto Power OFF feature.

  1. Press Menu on your remote control. 
  2. Go to Timers.
  3. Turn OFF the Auto power OFF feature if it is turned ON. 

 

Disable the CEC feature. 

  1. Go to Menu followed by System.
  2. Select CEC and turn the CEC function OFF.
  3. Check if the issue is fixed. 

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