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(11 Fixes) LG TV Keeps Turning Off [Updated 2022 Guide]

LG TV Keeps Turning Off

Before you start thinking…

“My weekend’s ruined!” 

Or…

“There goes my chance to watch the playoffs.”

Your problem isn’t a lost cause. 

Because I helped my neighbor fix their LG TV the other day. 

And it didn’t take the whole night. 

So, what’s your next best step?

Continue reading to discover:

  • 11 easy ways to fix your LG TV (and keep it from turning off).
  • 3 ways to inspect your power cord and supply to diagnose your issue. 
  • Step-by-step guides on how to disable your sleep timer and Auto Power off mode.
  • And many more…

Why does my LG TV keep turning off?

Your LG TV keeps turning off because of a damaged power outlet or cord. Another reason is your sleep timer or Auto Power Off functions. Other causes could be outdated software, overheating issues, or worn-down hardware. Lastly, your LG TV keeps turning off because the remote needs new batteries. 


LG TV keeps turning off: 11 ways to fix it


#1: Check your power cord

If you keep your plugs at the back of a cabinet, for example…

It’s easy to overlook the fact it might’ve been chewed on or that it’s loosely connected.

In addition, power outages can damage any plugged-in device or appliance. 

If you’ve experienced several storm surges lately…

And your TV was plugged in, it might’ve damaged your:

  • Plug.
  • Power outlet.
  • Television unit.

The end result? 

Your TV doesn’t have enough power to run smoothly. 

What’s more, it hardly stays on for a minute and ends up turning off repeatedly.

Best fix for this:

First, inspect your power cord:

  • Is the plug bent or is there noticeable damage? 
  • Is it tightly secured and plugged into your power socket?
  • Do you see any holes, burn marks, or damage around the cord?

If you see any of these, you need a new cable

However, if your plug and power cord are fine, then…

#2: Test your power outlet

What’s worse than a damaged plug? 

A fried power socket. 

Meaning, there’s barely any current running through it. 

No current, no power. 

In short, your TV doesn’t stay turned on.

How does it happen? 

Mostly through power surges or factors like overheating, age, and corrosion. 

Best fix for this:

  1. Grab another device (phone charger or hairdryer). 
  2. Plug either one into the same power outlet. 
  3. Check if your device works normally. 

For example, if you set your hairdryer to its max setting…

And it runs below its expected output, or it’s not as strong as it should be, then…

Your power outlet’s the problem. 

From here, you’ll need an electrician to inspect your wiring. 

Read also: LG TV Not Turning On: 9 Ways To Fix It

#3: Disconnect smart devices from your LG TV

Is your Alexa or Google Home device synced with your LG TV?

Because here’s a possible issue that might happen:

If you try saying the command “Sleep sounds” to your Echo Dot, you’ll notice something odd. 

What happens is Alexa processes your request on your TV and turns off your screen. 

Weird, right? 

Dig deeper: Should Smart Devices Be on a Separate Network? The Truth

But it’s a good thing the solution’s easy to do. 

Best fix for this:

For any Echo device, follow these steps: 

  1. Open your Alexa app. 
  2. Tap “Devices.” 
  3. Select “All Devices.”
  4. Choose your LG TV.
  5. Tap “Remove device.” 

If you have a Google Home, the process is similar. 

Make sure you have the app (App Store or Google Play Store) installed on your phone too. 

From there, do the following:

  1. Open your Google Home app.
  2. Scroll down until you see your TV. 
  3. Tap on your device. 
  4. Press the settings option (gear icon) at the top-right part of your screen.
  5. In your “Device Settings” menu, tap “Remove Device.”

If you want a video tutorial on how to disconnect devices from Google Home, this video should help:

#4:  Reset your LG TV

If the problem persists, it’s time for a reboot.

What this does is it wakes up your TV from its glitchy or frozen state. 

A reboot is useful when…

  • The buttons on your remote stop working.
  • Your screen’s freezing, flickering, or turning off repeatedly. 
  • Your TV’s sensor doesn’t respond to any of your remote control’s functions.

Best fix for this:

It’s simple. 

Here’s how:

  1. Unplug your TV. 
  2. Wait for 1 minute. 
  3. Plug your TV back into its power source.
  4. Check if the issue still persists.

Related read: Smart TV Keeps Freezing: 4 Reasons & 5 Instant Fixes

#5: Shut off “Auto Power Off” feature

Why do this? 

Because your LG TV might have its Auto Power mode set to its default setting of 2 hours. 

What that means is…

Your TV shuts down automatically if…

  • No activity was detected over a 2-hour span. 
  • You don’t press any buttons on your remote for 2 hours. 

Best fix for this:

For users with an older LG TV model:
  1. Press the smart button (Home icon) on your remote. 
  2. Select Settings (top-right part of your screen).
  3. Scroll down and press “All Settings.”
  4. Select “General.”
  5. Tap “Timers.” 
  6. You should see “Auto Power Off” at the bottom. 
  7. Tap the slider to toggle it off. 
If you have a newer LG TV model:

Step 1: Tap the settings option (gear icon) on your remote. 

Step 2: Scroll down until you hit “All Settings.”

You should see a menu pop up with the following options:

  • Sound.
  • Picture.
  • Support.
  • General.

Step 3: Select the “Support” option. 

Step 4: Tap “Energy Saving.”

Step 5: Select “Auto Power Off.”

In the pop-up menu, you’ll see the options: 

  • Off. 
  • 2 hours.
  • 4 hours.
  • 6 hours.
  • 8 hours. 

By default, your LG TV’s set to the 4-hour mark. 

Step 6: Set your Auto Power Off to “Off.”

#6: Turn off your sleep timer 

The sleep function works by turning off your TV after a specified number of minutes have elapsed. 

By default, it’s set to 30 minutes. 

And if that’s the case, it’s no wonder your TV keeps turning off.

Best fix for this:

  1. Press the smart button (home icon) on your remote. 
  2. Tap Settings (top-right part of your screen).
  3. Select “All Settings.”
  4. In the pop-up menu, select “General.”
  5. Choose “Timers.”
  6. Tap “Sleep Timer.”
  7. Set the function to “Off.”

If you recently bought an LG TV, accessing your sleep timer function’s much easier:

  1. Tap the settings (gear icon) on your remote. 
  2. A pop-up menu should appear on the left part of your screen.
  3. Scroll down until you hit “Sleep Timer.”
  4. Turn it off. 

#7: Update your LG TV’s software

Update Your LG TV's Software

Sometimes, a firmware update’s needed to…

  • Fix any errors your television unit has.
  • Remove bugs or glitches in your TV system.
  • Improve the functionality and viewing experience.

If your LG TV’s outdated, some functions may not even work. 

And the only way to fix that is by doing a software update

Best fix for this:

  1. Press the settings function (gear icon) on your remote. 
  2. Scroll down and tap “All Settings.”
  3. In the pop up menu, select “General.”
  4. Keep scrolling down until you hit “About This TV.”
  5. Tap “Check For Updates.” 
  6. Install the update. 
  7. Wait for the installation to finish. 

#8: Whack your power cord

Sounds a little crazy, right? 

But here’s the thing. 

This approach fixed my neighbor’s LG TV.

As odd as it seems, it’s one method you can do if you’ve tried most of the technical fixes already.  

Best fix for this:

How exactly do you whack your power cord? 

Think of it like…

An open-handed swat as if you’re smashing an insect.

How many times, you might ask? 

Once is enough. 

Warning: Proceed with this fix at your own discretion. Don’t smack too hard that you end up causing more problems to your TV.

#9: Cool your TV’s back panel with a fan

Yes – it happens. 

Your TV overheats and then shuts down.

Even laptops and phones do this too. 

Why? 

Because of their processors

Put simply, these small chips that allow your devices to operate are heat-sensitive

The hotter your processors are, the slower they run. 

And once it reaches heat levels that are too high, it shuts down. 

Have you tried touching the back panel of your TV? 

If you notice that it’s hotter than usual, it could be the reason behind your problem. 

You might also like: (15 Fixes) My TV Turns On Then Off Immediately

Best fix for this:

The best solution is to let your TV rest by turning it off. 

Alternatively, you can cool it down by using a fan.

Make sure the air’s facing your TV’s back panel or any warm part. 

Then, check if your screen still turns off repeatedly. 

#10: Change the batteries of your remote

Think of it this way. 

Your remote controls your TV. 

When it’s low in power, some of its functions can cause malfunctions or glitches too. 

This issue is common in Roku, LG, and Samsung devices. 

Fortunately, the solution’s simple.

Best fix for this:

Change the batteries on all your TV remotes. 

In fact, you might even see the issue disappear after removing the battery from your remote. 

#11: Contact LG customer support

In the end, the worst that could happen is a broken hardware component. 

Specifically, your TV’s power board

Basically, this component is what allows your TV to turn on. 

What damages it, you might ask? 

Either because of a storm/power surge or overheating. 

Best fix for this:

Should you replace your TV’s power board? 

That’s definitely one way to go about it. 

But preferably, it’s best to contact LG first. 

That way, a professional can diagnose your TV and give you a list of solutions to do. 

It’s not wise to do any DIY fixes if you don’t have any technical background or expertise. 

Conclusion: Why won’t my LG TV stay on?

Your LG TV doesn’t turn on because its AC cord might be damaged. 

As a result, there isn’t enough power supply and it can’t operate normally. 

However, other factors that contribute to your LG TV not staying on include the following:

Why your LG TV keeps turning offExplanation
Power/storm surgesDamages your power outlets and plugs. 
Auto Power Off and sleep timer are turned onShuts down your TV automatically after a specific number of minutes/hours.
Outdated softwareYour TV’s functionality is limited and causes unresolved bugs/glitches. 
Overheating issuesExtreme temperatures lead to sluggish performance. Inevitably leads to the device shutting down.
Drained remote batteryTV functions don’t operate properly. Turning on/off becomes glitchy
Hardware problemDamaged power board leads to your TV not being able to turn on.