LG TV Keeps Turning Off? Here’s 10 Easy Fixes


Has your favorite show or movie been interrupted for the umpteenth time by your LG TV turning itself off?

You’re not alone. LG TV’s have a bit of a reputation for switching themselves off. Almost like they’re wanting to take a quick powernap before getting back to your regularly scheduled programming.

The most common causes of an LG TV turning off is due to power cord issues, needing a software update and resetting the TV, deactivating quick start, and auto power. Each of these are a common cause for an LG TV switching off repeatedly.

That’s the quick answer, though.

If you’re struggling with an LG Television, you’re in the right place. Below we’ve covered all 10 known causes of these models switching themselves off, with solutions for each.

If that sounds good, then let’s dive in and fix this together.

10 Ways to Solve LG TV Turning Itself Off

#1 Check the Power Cord Is Plugged in Properly

Before you start dismantling the back of the TV and changing the motherboard, we’ll start with some of the simplest fixes. These are often the things that we overlook and could quickly solve the problem.

Let’s have a look at the first one. Checking that the power cord or the power cord is plugged in properly. You should double-check that the power cord is firmly plugged into the wall socket and the back of the TV. If it is not, you could experience problems with your TV cycling on and off.

TV cord in socket
Push the cord firmly into the socket, make sure it isn’t popping back out at all

#2 Ensure the Power Cord Isn’t Damaged

The next step is to ensure that your power cord isn’t damaged. If it is, it will begin to malfunction and mess with the proper running of your TV. Check for any fraying or exposed wire.

When checking for damage, make sure you plug the TV out first. If you find any damage or smell any burning around your power cord, you should discontinue using the TV. You will need to replace the cord.

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#3 Test the Power Socket

Ok, so what if the power cord itself isn’t the problem, but the power socket is? If your power socket isn’t working as it should do, it could be the culprit of your TV on and off problems.

To test your power socket, do the following.

  1. Plug the TV out of the power socket
  2. Plug another device into the power socket, such as a hairdryer
  3. Turn the hairdryer on to the maximum speed and heat. If the hairdryer works as it should, you can conclude that there isn’t a problem with your power socket. If it doesn’t, you may need to call an electrician to repair the faulty connection.

#4 Reset the TV

Resetting your TV is a good way to clear it of anything that may be stopping it from working properly.

Here’s how you can reset your LG TV.

  1. Turn off the TV using the power button
  2. Plug the power cord out of the wall socket. Keep it unplugged for 1 minute.
  3. Plug the TV back in
  4. Turn it back on using the power button
Unplugging TV
First turn the TV off, then unplug it at the mains

#5 Deactivate Quick Start +

Some LG TV owners have found that deactivating the Quick Start + function on the TV puts an end to their TV on/off problems.

Here is how you can deactivate Quick Start + from your LG TV.

  1. Press the “HOME” button on your remote control
  2. Choose “SETTINGS”
  3. Navigate to “GENERAL”. You should then see the Quick Start + option in the dropdown menu. Click this option then choose “OFF”.

#6 Disable the SimpLink Setting

LG TV’s have a ‘SimpLink’ setting which allows the TV to automatically change inputs or turn off depending on what’s connected to it via HDMI. It’s a likely culprit for LG TV’s specifically.

To turn off SimpLink:

  1. Go to the “MENU”
  2. Go to “GENERAL”
  3. Go to “HDMI SETTINGS”
  4. Disable the “SimpLink” option.

#7 Disable the Power Off Timer

The power off timer on an LG TV will turn the TV off automatically at a set time during the day. It will turn the TV off at the predetermined time every day specified in the timer. This will turn the TV off regardless of whether you were actively watching it or not.

It is possible that someone selected and set this option by accident. So, here are the steps you need to disable the power off timer.

  1. Press the “HOME” button on your remote control
  2. Choose “SETTINGS”
  3. Click on “GENERAL” then “TIME”
  4. Then choose “TIMERS”
  5. Select “POWER OFF TIMER” and click to disable the option

Are you ready to take a look at some of the steps we’ve seen so far in more detail? Then take a look at this tutorial.

#8 Clear the Cache

If deactivating the timers didn’t fix your TV’s problem, then you might need to clear its cache. Do you use your TV primarily to stream shows and movies? Then your TV could be suffering from a cache overload. This overload could cause it to malfunction, making it turn on and off for no reason.

To fix this problem, take a look at the steps below. They will help you clear the cache on your LG TV.

  1. Press the “HOME” button on your remote control
  2. Choose “SETTINGS”
  3. Navigate all the way down to “EDIT APP LIST”
  4. For each app, go in and clear the cache. Unfortunately you typically need to do this app by app.

#9 Update Your Software

Performing a software update may solve the power on/off problem that you’ve been having with your LG TV. This is because software updates do the following.

  • Increase the security of your appliance
  • Improve the stability of your software
  • Remove outdated features
  • Remove bugs and prompt your system to work properly

Are you ready to perform a factory update on your TV? Then here are all the steps you will need.

  1. Press the “HOME” button on your remote control
  2. Choose “SETTINGS”
  3. Navigate to “SUPPORT” or “GENERAL”. (This will vary depending on your TV model).
  4. Select “ABOUT THIS TV”
  5. Choose “SOFTWARE UPDATE” in the dropdown menu. This option will search for a software update if one is available and prompt you to perform it.
  6. Click “CHECK FOR UPDATES”. If an update becomes available click “UPDATE”

Fancy seeing this step in more detail? Then here’s a quick tutorial.

#10 Factory Reset the TV

Have you completed the other fixes in this article but are still having problems with your TV? Then you may need to factory reset the TV for it to work properly.

You should bear in mind that factory resetting will remove your personalized settings. For example, it will remove any downloaded apps and return all settings to their defaults. You may want to save a backup of your accounts onto a cloud storage before performing the reset. You should make sure you have access to all of the account passwords.

Here’s what you can do to reset your LG TV.

  1. Press the “HOME” button on your remote control
  2. Choose “SETTINGS”
  3. Navigate to “GENERAL” then press “RESET TO ORIGINAL SETTINGS” in the dropdown menu

Would you like to take a look at this step in more detail? Then here’s a tutorial video.


Does your LG TV turn itself off? There’s nothing more frustrating than an appliance that has a mind of its own. Luckily, I am sure the 10 tips in this article have helped you to put an end to this problem and get back to uninterrupted TV viewing.

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Have a great day!


Austin Sharman is a Technical Support Specialist with over 10 years of experience across a broad range of IT roles. Austin has years of experience with professionally installing and repairing televisions, home theatre systems, smart home devices, computers, networks, and other electronic systems. In working as part of BestBuy’s ‘Geek Squad’, Austin helped thousands of customers resolve issues with their IT systems, both residential and commercial. Austin has a ton of experience handling just about every issue that can crop up with digital systems. Nowadays, Austin works as technical support for the school division of York County. He handles the computers, systems, high-end printers, and networks to support the teachers and students of the school division. Read more