Fix LG TV Turns Off By Itself With These Solutions?

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Written By Dinu Sri

Dr H. T. D. S. Madusanka is an electronic expert with 10 years of experience, involved in the research and development of SMART HOME systems.

Many LG TV owners are frustrated by an annoying problem: their TVs shut off independently. When unexpected issues arise, the first thing many people do is contact technical support. But before you go to the doctor, do a few things at home. 

LG TVs often switch off due to auto-timer and linked device issues, the most common culprits. Timer disablement and device removal are the most common fixes in most circumstances. If removing these features does not solve the issue, check your controller for misfires or a broken power cable.

Features that users seldom utilize cause a large number of TV-related issues. An LG TV shutting down on its own result from a user-initiated auto-timer setting to satisfy their curiosity. Try the following solutions; they usually work for the majority of individuals.

Reasons Why LG TV to Shut Down 

Smart TVs are still a relatively recent innovation in home entertainment. Since the early 2010s, it has been steadily developing and has been a successful product. No one deny its shortcomings, particularly in terms of AI integration. Your LG TV is at blame if it unexpectedly shuts itself off while you are viewing.

Timers That Are Set By A Computer

Adding a timer to a TV is a standard marketing strategy manufacturers use to encourage buyers. With a single adjustment of the timers, the TV shut off itself if you need this and know how to use it. 

In actuality, most individuals only use this function once before abandoning it. The issue arises when the user forgets to turn this function off after testing. When a piece of equipment fails, it is because it is defective.

Affecting The Power Supply

A broken power cable is another typical reason LG TVs shut off randomly. Older televisions are more likely to suffer from this issue because of wear and tear. Determine whether there is a hole in your cord’s protective case. Unfortunately, a professional electrician is necessary for this instance.

A Connected Device

Connected devices override the local settings of your LG TVs. There are several ways to switch off the LG TV, such as a Google Home and Alexa linked to the device. It is more likely that a settings mismatch occur if you have many smart devices linked to your TV.

A faulty remote control is another strange issue resulting in your LG TV shutting down. Wear can cause the remote to suffer significant damage. LG TVs are turned off if the control is too worn or broken.

Common LG TV Shutdown Problems and Solutions –

To solve LG TV’s automatic shutdown, we need to know the most typical reasons. These are just for simple software repairs and are not designed to remedy problems caused by actual hardware issues.

Disconnect And Re-plug

If the issue persists, unplug and plug the device back in. Make sure the power cord is unplugged first. Before connecting it back in, wait 60 seconds. Your LG TV’s power reset when you do this operation. 

Unplugging the machine entirely shuts it off, and it has a more significant effect on utilizing a remote control.

Remove Devices Connected

Unplug the TV’s linked gadgets for a quick remedy. After a certain period of inactivity, some gadgets would automatically transmit a “turn off” signal. LG itself cites the automated shutdown of the Bose soundbar as an example of this. This conserves power, but it is inconvenient if you’re going to be watching for an extended period.

Alternatively, you unplug your TV from the WiFi network for a few days to see if it helps. You be able to unplug all of your electronic gadgets in one fell swoop. If the automated shutdown vanishes when your TV is disconnected, review your linked devices for conflicting settings.

Disable The Timers


LG’s intelligent TVs built after 2014 use WebOS. Disabling it is the simplest solution for those who have never used the timer. Using your remote, press the “Home” button and then choose the gear symbol in the upper right corner of the screen. A fresh collection of icons is expected.

  • Turn off the “Sleep Timer” icon in the screen’s upper-right corner.
  • The “Time Power Off” option in the General settings switches off all your TV timers.


If you are using a Netcast remote, go to your sleep timer settings by pushing the button on the device. There is no one-size-fits-all method for this, but you should find the sleep timer option under the clock settings. Once you have disabled this option, you are good to go.

Reset The Battery

If all other remedies fail, the best option is to do a factory reset. In the “General” section of your local settings, choose “Reset to Initial Settings.” The HDMI-CEC functionality was disabled if you like to have a variety of settings.

Make Sure You Have Turned Off SIMPLINK

Smart TVs with Simplink switch on automatically. Your TV turns on if a gadget linked to the smart tv is switched on if sampling is enabled. If your LG smart tv doesn’t power on, try disabling SIMPLINK.

  • Utilizing your LG TV’s remote control, choose “home.”
  • Choose “Settings” from the menu.
  • Next, go to the available drop-down menu.
  • Make use of the SIMPLINK option.
  • The automatic power sync option now be disabled.

Once you’ve done so, see whether the problem with the LG TV starting up again was addressed or not. Other troubleshooting actions are necessary if it doesn’t work.

Disable Simplink And Getting Started Guide Plus Before Clearing The Cache

Now It is necessary to clear the LG smart tv’s cache after disabling SIMPLINK and fast start plus. Quickstart Plus on LG smart tv doesn’t clean cache. Here are the instructions for deleting the LG smart tv’s memory cache.

  • The LG smart tv should now be turned off.
  • Make sure your LG TV is unplugged from the wall.
  • Keep an eye on the timer for a good 15 to 20 minutes.
  • Plugin your LG television and power it on.

The LG smart tv now be used for a while. On your smart television, the problem of your LG TV restarting itself is no longer an issue.

Upgrade The System On The LG Smart TV

LG claims that a simple software update resolves several problems. Maybe LG already has published an update for the LG intelligent tv model that fixes the LG tv keeps going on and off. As a result, a software upgrade able to assist you in resolving this problem. To upgrade your LG smart tv’s firmware, follow the instructions below.

  • Press the settings tab on your LG tv control to access the menu.
  • Once you’ve finished scrolling through the options, be sure you’ve selected everything you want.
  • Select “About This TV” from the main menu.
  • If there is a newer version available, pick that option.
  • Updates are available for download and installation.
  • Now see whether the problem with LG smart tv going on and off is fixed.

Restore Factory Settings On The LG Smart TV 

The LG smart tv keeps resetting itself. If it does not work, try wiping the LG smart tv and starting again. Follow these procedures to do a factory reset on your LG smart tv.

  • The LG remote control has a setting button.
  • Go through all the options.
  • Choose ‘General’ from the drop-down menu.
  • After that, click on Reset to factory settings.
  • Reset the LG smart tv by entering the standard pin 1234 or even your pin.

Follow the on-screen instructions to finish setting up your LG smart tv when the Reset has been completed.


Follow these instructions to do a power cycle on your LG TV if it keeps shutting off and the red light is blinking on it. How to repair an LG TV that is constantly shutting off? The LG smart TV’s main board potentially malfunction. 

Either you or a specialist take on the task of swapping out the main board in this case. I hope these tips help you to solve the problem.

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