My LG TV turns off by itself – why is this happening? 10 most common reasons.

Written by Adam Morris
7 Min read
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TV switching itself off? Here’s why.

LG Electronics is a Korean company who are committed to providing its customers with innovative solutions to their everyday problems, helping them to lead better, easier, and more efficient lives.

LG TVs are amongst the very best available on the market, and their realistic pricing strategy makes investing in the latest TV gadgetry achievable for most people’s pockets.

However, even the best appliances can run into problems, and when this happens to one of the most used devices in your home, any downtime could mean missing the most crucial episode of your favorite show, and no one wants that!

So, whether your LG TV is playing up and you need some fast answers, or you’re researching TVs in preparation for a big new investment, this article is the one for you. 

LG TV switches off

Different types of LG TVs

There are a number of different LG TVs available to purchase, including:

  • LED TVs – a flat panel TV set that uses light-emitting diodes for its backlight sources, as opposed to older TV models which used to use cold cathode fluorescent lamps
  • OLED TVs – the ultimate in LED technology
  • 4K TVs – TVs with around 8.3 million pixels, which is around four times more than traditional full HD TVs, meaning a much more detailed and vivid picture quality
  • 8K TVs – TVs with around 33 million pixels – four times more than 4K TVs and currently the highest of all TV resolutions available


A recent article reported that the very best LG TVs for 2022 are OLED (which stands for organic light-emitting diodes), and this is because they have been the main drivers of OLED technology.  OLED TVs feature ultra-thin screens with unrivalled picture quality.

OLED TVs are infinitely better than LED TVs at handling darkness and lighting with precision. They offer a wide viewing angle which makes them a great choice for large families or groups of people.

The 10 most common problems with LG TVs

When it comes to TVs, you won’t go far wrong with an LG TV! However, no matter how much money you spend on an electronic device, or how many great reviews a gadget has been given, its longevity can never be guaranteed.

Here are some of the most common LG TV problems you are likely to encounter, along with a few helpful hacks to get you back up and running again.

Switching itself off and on intermittently

If you’ve never experienced a TV randomly switching itself off during the most crucial part of a Netflix series you’ve invested days into, then you can count yourself extremely lucky!

It’s a little-known fact that most TV-related issues can be traced back to the built-in features that don’t get used very often, and in the case of a TV that switched itself off and on intermittently, this could be due to the auto-timer setup.

The auto-power off feature is a setting that will switch your TV off automatically, and it will do this if there has been no user input after a pre-selected time. This is to stop your TV from operating when there’s no one watching it.

How to repair an LG TV that keeps turning off

  • To check whether the TV timers have been set, click the Smart button on your TV remote
  • Select settings
  • Select time
  • Click wheel or enter
  • Check whether the off time option has been set and deselect if required
  • Check whether the on time has been set and set to off if required
  • Check whether the sleep timer has been set and deselect if required

If none of these fixes resolved the issue, you may need to reset your LG TV

How to reset an LG TV

  • Click the gear wheel button on your remote
  • Select general
  • Select reset to initial settings
  • Your TV may ask if you’re sure you want to do this, select confirm

Your TV should now restart, and you’ll need to enter the details of your country, language, and internet provider.  

LG Smart TV: How to Factory Reset Back to Default Settings as if Brand New Out of the Box

Failing to connect to Wi-Fi

If your LG TV struggles to connect to the internet or keeps disconnecting itself, just a few simple steps should rectify the situation.

Firstly, check the signal strength to make sure there’s enough Wi-Fi power going into your TV. If your signal is weak, consider investing in a booster box.

Some other solutions include:

  • Shut down the internet router and wait a few seconds before turning it back on again
  • Reposition the router somewhere in the house where the signal is stronger
  • Change the date and time settings by accessing settings and selecting your time zone
  • Disable quick start/Simplink features by heading into your settings and turning off any quick start options such as ‘Simplink’ or ‘cinema mode’.
  • Update the DNS settings by connecting to the correct DNS server

Failing to respond to the remote control

This sounds obvious, but when was the last time you checked the batteries in your remote? If the answer to this is ‘never’ or ‘not for a while’, then you should consider replacing the batteries in your remote control as soon as possible.

The second most obvious fix is to check nothing is blocking the IR sensor that is situated at the bottom of the front of your tv. Items placed on TV units such as plants or ornaments could be blocking the signal that sends messages from the remote to the TV.

If neither of these solutions helps, or if only certain buttons are failing such as the home screen, you may need to reset your TV remote.

How to reset your LG TV remote

Resetting your LG TV remote should help to resolve niggling issues such as the home button not working.

To do this, you must take the following steps:

  • Press the back and home buttons on your remote simultaneously
  • Hold them down for at least five seconds
LG Magic Remote Reset / Pairing | LG Smart TV's Remote Reset | Tip#100 ⚡⚡⚡

Horizontal or vertical bars appear on the screen

Lines appearing on your TV screen is an irritating issue that will interfere with your viewing enjoyment.

When any part of a TVs display gets damaged for any reason, it can cause these lines to appear.

Some of the most common reasons for horizontal lines include:

  • LCD screen damage
  • Loose cable connections
  • Too many other devices connected to the TV
  • Poor connections between internal elements of your TV
  • A faulty T-con board

If, after checking all connections and resetting your TV you are still experiencing issues, you may need to chat to an LG TV repair specialist.

There is sound but no picture

If you switch on your TV and can hear all the action but only see a black screen, you will want to consider the following solutions:

  • Unplug the TV and wait for 10-15 minutes before switching back on again. This is known as a power cycle
  • Turn the TV off and then try switching it on again using the power button on the TV rather than the remote
  • Check the power cables are plugged in correctly
  • Try plugging the HDMI cable into a different connection
  • Reset back to factory settings

Inconsistent colors

According to Netflix, if the colors on your TV are not displaying correctly on your LG TV, this could be because your Dolby Vision display has been set to vivid mode.

If the issue is more prominent when in a dim viewing environment, change the display mode to movie dark. If the issue is more prominent when in brighter rooms, change the display mode to movie bright.

You can also recalibrate the color by desaturating the color settings until the picture displays in black and white. Then adjust the contrast until the black and whites are distinct from each other, and then the brightness until the blacks display as a deep black as opposed to dark grey. Finally, turn the sharpness all the way up before gradually bringing it down until the halos around lines and letters disappear.        

How many years does an LG TV last?

A lifespan of between 40,000 to 60,000 viewing hours – equates to around 5–7 years (providing you’re not watching the TV all day every day!) There are some simple things you can do to prolong the life of your TV, getting more from your investment by as much as a year or two.

  • Turn off your TV regularly – keeping your TV on as background noise for just three hours a day adds an additional 1,000 hours per year
  • Avoid covering the TV ventilation – An overheated TV is an unhealthy TV and will eventually cause you problems. It is recommended that you leave four inches of space between the TV and any sides or a wall
  • Use a voltage regulator – voltage regulators take an incoming AC voltage and stabilize it; they also often contain surge protectors which will block high voltage spikes to protect delicate electrical components
  • Clean it regularly – Gently wipe around your TV regularly using a soft, dry microfibre cloth

A few final thoughts

LG TVs are good value, reliable, and technically advanced appliances, but as with everything in life are not guaranteed to last forever. However, thankfully these issues are few and far between and anyone investing in an LG TV will be able to enjoy a seamless cinematic experience for many years to come.


Why does my LG TV keep turning itself off?

The reason your LG TV keeps turning itself off could be because of the auto-timer feature that has been pre-set. This feature switches the TV off if it hasn’t detected any user activity for a set period of time. In order to resolve this issue, you should access the timer settings within the TV menu and switch off any unwanted timers that are in place.

How do I reset my LG TV?

Re-setting your LG TV is as simple as selecting the option to ‘reset to initial settings’ from your TV settings.
You can also unplug your TV, leave it switched off for at least five minutes before switching it on again.

Appliances made simple. 

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