Why Does My LG TV Keep Turning Off?

Is your LG TV keep turning off by itself? Don’t worry, we have got you covered.

To resolve the random turn-off problem of LG TV, you can try disconnecting all external devices, place your LG TV in a well-ventilated place, update the system software, look for power problems, or do a factory reset.

This guide will walk you through a series of solutions to fix the LG TV’s turning-off issue.

Why LG TV keeps turning off?

Here are a few of the reasons why your LG TV is turning off.

Overheating
Incorrect TV Settings on Sleep Timer, Simplink
Defective devices connected to your TV
Power supply issue due to damaged power cord, power outlet or
Issue with TV Remote
Virus in TV
Motherboard issue
Internet issue

How to Fix “LG TV keeps turning off”?

There are a number of proven tech tips that can help you prevent the LG TV from turning off.

It’s best to work through them in the order listed below as these solutions are organized from simplest and quickest to more complex and lengthy.

Fix 1: Restart the LG TV

Most of the issues with LG TVs can be fixed by restarting the TV. So, as a first step, just restart the TV.

Turn the TV off by pressing the Power button on the TV itself or on the remote.
Then unplug the cable from the power outlet.
Wait for 30 seconds.
Plug it back then.
Turn the TV back ON using the Power button.

Fix 2: Disconnect the external devices connected to LG TV

If any external devices such as USB, laptops, etc. are connected to your LG TV, then disconnect the cables of these external devices from your TV.

When there are no external devices connected to the TV, set the Sources to TV.

Follow the below steps to do it.

Press INPUT button on remote to access the input sources
Select the one which represents TV.
Press the OK button to confirm your selection.

Fix 3: Check the power supply to LG TV

Check whether your power cord is broken or damaged. If it is broken, then you need to replace it.

If it is working fine, then you need to check the power outlet. If there is low power, then your TV will keep turning off.

To check the power outlet, you can connect some other device to the same power outlet and check whether it is working fine.

You can also try connecting your LG TV to a different power outlet and check whether the random turn-off issue is now resolved.

If you are using a Surge protector, check whether it is faulty or not. To check this, you need to plug the TV cord directly into the outlet. If the LG TV is working fine, then you need to replace or repair your Surge protector.

Note: Make sure to use a certified HDMI cable. If you use an uncertified HDMI cable, the screen may be black, or a connection error may occur.

Fix 4: Check the TV Remote

Sometimes, the TV remote will send signals to automatically turn ON and OFF your TV at random intervals.

It’s usually because your remote batteries are low. Remotes are known to send off some weird signals when they’re on the last bit of juice.

Your TV could be interpreting infrared noise from your remote as an “OFF” command. So, you can replace your battery on the TV remote to check the issue still persists.

You also need to check the power button on the remote. Sometimes, it could be stuck.

Fix 5: Update LG Firmware

Sometimes, updating the Firmware of your LG smart TV to the latest version will fix the issue.

If you have not updated your LG TV for a while, follow the below steps to update it.

Connect LG Smart TV to Internet connection
Go to the “General Setting” of your TV menu using remote controller and open the menu named “About this TV“
Click on “Check for Updates” option in the menu
New software information will pop up on menu if available to update
Click on “Yes” to download and install new version (download progress will be visible in screen)
Wait until download complete 100%
Your TV will be installed and updated to the new software once you re-start the TV next time.

Fix 6: Provide proper ventilation for LG TV

Your TV may overheat and stop working if there is poor ventilation and airflow. In that scenario, you can take the following actions:

Turn off your TV.
Using a dry microfiber towel, clear the TV’s back of all dust.
Check to make sure nothing is obstructing the TV vents, as this could limit airflow and cause overheating.

Fix 7: Disable the Sleep Timer settings

Sleep Timer turns the TV off after a certain period of time. So, you need to check whether you or someone else enabled it earlier.

Follow the below steps to check whether you have enabled it or not.

Press HOME to access the Home menus.
Press the navigation buttons to scroll to SETTINGS and press OK.
Press the navigation buttons to scroll to the Sleep Timer.
Set Sleep Timer to OFF
Press the Close button

Fix 8: Turn off “OFF time” settings

You should also set OFF Time to OFF. This is because OFF Time automatically shuts off the TV at a specific time.

So, you need to check whether you or someone else enabled it earlier.

Press HOME to access the Home menus.
Press the navigation buttons to scroll to SETTINGS and press OK.
Press the Navigation buttons to scroll to the Sleep Timer.
Set OFF Time to OFF
Press the Close button

Fix 9: Disable SIMPLINK

SIMPLINK is LG’s version of HDMI-CEC. Every time an associated device, such as a PS4, is switched on, this feature turns on the TV.

A malfunctioning gadget could cause your TV to turn on and off at inconvenient times.

Take a look at disabling HDMI CEC on your LG TV.

Press INPUT button on remote to access the input sources
To access the SIMPLINK, press the Redbutton.
Set SIMPLINK to OFF

Fix 10: Carry out a factory reset of your LG TV

If none of the above techniques work out, you can do a factory reset of your LG TV.

When you do a factory reset, all of the TV’s software will be restored to the state when it left the factory.

Follow the below steps to do a factory reset of your LG TV.

Press the “Menu” button on the remote control.
Select “All Settings” from it.
Select Support.
Select General.
Press “Reset to Initial Settings”.

The TV will shut down and default to the original settings.

When it powers up you will need to go through the basic setup again, but once done this solved the problem.

The initial setup will need to be repeated when it powers on, however once completed, this fixed the issue.

Fix 11: Contact LG TV support

Sometimes, the issue might be with the LG motherboard or with a faulty capacitor or something else. Unless you have technical skills, you cannot repair it.

In this case, it is better to report the issue to the LG Service Center. Once you have reported the issue, you will get help from trained technicians.

If your TV is under warranty, you might also get it repaired free of cost.

Fix 12: Buy a new TV

If none of the above techniques works out, then it is better to buy a new Smart TV. This time, go for a different brand.

Wrapping Up

Summing up, if your LG TV keeps turning off :

Restart the TV
Check if the socket is faulty and if the TV starts to work in another socket.
Check the power cord cable for any damage or cuts.
Check the Sleep Timer, Simplink settings
Carry out a factory reset
If the issue still persists, contact LG Service Centre and let the experts handle your TV.

If you are under warranty, the manufacturers will cover the repair costs or will give you a new TV.

In case the repair cost supersedes the purchase cost, consider buying a new TV rather than attempting to bring life back inside an old TV. All the best to get your LG TV up and running!