LG TV Keeps Turning On and Off Repeatedly? Here’s Why and How to Fix

If you own an LG TV, chances are you’ve experienced the frustration of it turning on and off repeatedly. I know I have. After hours of research and troubleshooting, I finally figured out the cause and solution – and I’m here to share it with you. In this blog post, I’ll explain why your LG TV keeps turning on and off and provide some tips on how to fix it.

Troubleshooting Steps for LG TV Not Turning On
1. Physical check – Make sure the main cable is not damaged and that the TV is properly plugged in.
2. Hard reset – Unplug the TV, wait for 30-2 minutes, and then reconnect it.
3. Timer issue – Ensure the timer options are set to “Off” in the Settings menu.
4. Memory dump – Hard reset the TV and wait for 10-15 minutes for it to refresh its RAM.
5. Clearing cache – Disable “Quick Start+” and “SIMPLINK” from the TV Management and HDMI Settings menus.
6. Up-to-date – Check for updates in the About This TV or Support menus.
7. Hardware repair – If none of the above steps work, take the TV to a service center or call customer services.

Table of Contents

Why Is My TV Turning On and Off Again Repeatedly?

There are several reasons why your LG TV might be turning off and on again. That said, there are several troubleshooting steps that you can try to fix the issue for good.

Physical Check

Before doing anything with the TV, you’ll want to do a check on the device itself.

Make sure that the main cable of the device isn’t damaged or has any exposed wires.
That the TV is well connected and plugged into the wall outlet correctly and firmly.
Make sure the power cord is also fastened properly on the TV’s back.

Hard Reset

The second solution you’ll want to try out is doing a hard reset, as it’s the simplest one and usually does the trick.

Unplug the TV from the outlet.
Wait between 30 seconds to 2 minutes.

Reconnect the TV to the power socket.

This refreshes the TV’s internal system and should fix it, if it doesn’t it’s time to continue with the troubleshooting process.

Timer Issue

This is another problem people sometimes face without knowing that it’s set up. Checking if it’s off is a good way to resolve the issue.

While the TV is on, use your magic remote and press the “Settings” button.
Select “All Settings” and go down “General”.
From that panel select the “System” option.

This will lead you to a new panel, from which you’re going to go to “Time &Timer”.
Scroll down until you find “Timers” and select it.
On this page, you’ll find four options: “Sleep Timer”, “Power On Timer”, “Power Off Timer”, and “Auto Power Off after 4 Hours”.

Make sure that all of these options are “Off”.

This will make sure that the device doesn’t have any schedule planned to which it would turn on or off by itself.

Memory Dump

LG TV owners who use their TV heavily, especially on streaming services, complain that their TV turns off and back on by itself. This issue is because the device’s internal memory aka its RAM is running out.

The TV at that moment tries to regain some of that lost memory by restarting itself. However, sometimes that regained memory isn’t enough so it restarts again after a short period.

To resolve the issue the user needs to do a hard reset as previously mentioned. But instead of waiting a couple of minutes, this time they’ll have to wait for 10 to 15 minutes.

Clearing Cache

Another way to clear the TV’s cache is to disable some of the features on the device. They usually associate turning on the TV or off with other devices connected with it.

To do that you’ll need to:

Press the “Settings” button on your remote.
Select the “All Settings” option on the left of the screen.

In the new panel select “General” then “Devices”.
In the “TV Management” option, turn off “Quick Start+”.
In the “HDMI Settings” turn off “SIMPLINK”.

Do a hard reset.

Up to Date

It’s important that you have your TV’s firmware up to date, so after you’ve finished the previous steps, make your TV check for updates.

This is to make sure that the issue isn’t a software one, as LG might have released an update with a patch for it.

First, on your remote press the “Settings” button.
Select “All Settings” and then “About This TV” (in some models there is a “Support” tab in it there is a “Software Update” option).
Select the “Check for Updates” button.

If there’s one then proceed to download and update your TV’s firmware.

Hardware Repair

If you completed all of the previous troubleshooting steps and the device is still turning itself on and off by itself then it’s time to seek out external help.

The problem might be a hardware issue rather than a software or option one. This could happen if the power supply of the device keeps getting overheated.

This pushes the TV to shut itself off so that no permanent damage happens to the internal circuitry.

In this case, you’ll either have to take your TV to a service center or call customer services to find a solution.