Why LG TV Wont Turn On

LG TV Won’t Turn On (Do This Easy Fix!)

Indeed, an LG TV that won’t turn on is the last thing you need when you arrive home and just want to have a good time after work. Lucky for you, this is a common issue that can be easily fixed with suitable methods.

To fix an LG TV that won’t turn on, power cycle it, which simply means plugging it out of the wall and putting it back on. Also, ensure your remote control and HDMI cables are functional and in tip-top shape. 

Of course, fixing a TV can be daunting. But no worries, in this post, we’re giving you not one easy fix but 10 — providing you with the steps to each one and all the tools you need to quickly bring your unit back to life and save movie night!

DifficultyHard ●●●●○
Duration1 hour and 26 minutes
Number of Fixes10
Things You Need• LG TV
• LG TV remote control
• 2 AA batteries
• Replacement HDMI cable
• Replacement power cable
• Screwdriver
• Wirecutter5-in-1 tool
• Suction cups
• Tape
• Replacement LED strips
• Soldering iron
• Soldering iron wires
Possible Costs$175 – $356

Why LG TV Won’t Turn On

The reasons an LG TV won’t turn can vary. However, there are common reasons that might be causing your LG TV not to turn on, as provided below.

  • Too much residual electrical energy stored inside the LG TV and remote control causes them to malfunction.
  • Problematic HDMI and power cables.
  • Problematic HDMI and DC-IN ports.
  • Problematic power/electrical outlet.
  • Wrong input source selected.
  • Faulty hardware and components inside the TV.

Being able to zero in on the cause behind your TV’s lackluster performance can go a long way in troubleshooting the unit. It’s best, therefore, to be as systematic as possible in applying proven-and-tested quick fixes. 

How to Fix LG TV Not Turning On

Fix LG TV not turning on by discharging the residual electrical charge on the TV and the remote control. You can also check the power and HDMI cable connections and replace damaged hardware and faulty components.

You need to replace key parts such as the LED strips, capacitors, and boards for hardware damage.

Indeed, some of the solutions can be challenging. But never fear as the step-by-step troubleshooting guides below, complete with pictures, should have you covered. 

1. Discharge the residual electrical charge on your LG TV.

Difficulty Very Easy ●○○○○
Number of Steps4
Duration1 minute and 5 seconds

If your LG TV won’t turn on, an easy fix you can try includes discharging the residual electrical charge stored inside your LG TV via power cycling. Power cycling also functions as a soft reset, which helps fix minor issues causing your TV not to turn on.

A power cycle works by holding the power button on your LG TV while disconnected from the power source to drain any residual power. Once it’s drained completely, reintroduce electricity to help the TV reboot without any issues.

Follow these steps to discharge the residual electrical charge on your LG TV:

  • Unplug the power cable of your LG TV from the power/electrical outlet.
  • Press/hold the power button located on the back/underside of the LG TV.
  • Stop holding the power button after 30 seconds have passed.
  • Give your TV 30 more seconds before plugging its power cable back into the power/electrical outlet.

Note: The power cable of your LG TV must be fitted securely into the power/electrical outlet. Otherwise, a loose connection will result in an unstable power supply, and your LG TV might not reboot correctly.

You might wonder about the number of seconds you must observe before moving forward. This is a way for you to ensure residual electricity won’t play a role in the process. 

2. Remove and replace the batteries inside the remote control.

Difficulty Very Easy ●○○○○
Number of Steps5
Duration15 seconds
Costs$5 – $10

A simple LG TV won’t turn on easy fix is to check if the batteries inside your remote control have enough power left. If they’re already running low on juice, it might lead you to believe that the TV has a problem when the remote is the actual culprit.

Believe it or not, many users find replacing the batteries inside the remote control difficult due to the back cover being tricky to open. It’s not hard to open if you know what you’re doing, but it can be confusing when you’re not paying close attention.

If you’re one of those people struggling with opening the cover to the battery compartment, carefully follow our instructions below. Please note that you need to prepare a fresh pair of AA batteries beforehand for the replacement.

Follow these steps to remove and replace the old batteries on the remote:

Step 1: Flip the remote control and press the oval shape that says “PUSH.”

Step 2: Slide the back cover to the direction the engraved arrow is pointing to.


Note: You must be pressing/holding on to the oval shape to be able to slide the back panel.
Step 3: Remove the old pair of batteries from the battery compartment.

Step 4: Install a fresh new pair of AA batteries.


Note: Pay attention to where the positive and negative ends of each battery should go to install them properly.
Step 5: Slide the back cover to close the battery compartment again.

3. Discharge residual power inside the remote control.

Difficulty Very Easy ●○○○○
Number of Steps5
Duration1 minute and 30 seconds

Like your LG TV, its remote control can also be discharged of any residual charges stored inside its components to fix any malfunction. Troubleshooting the remote control for a minor issue like this is an effective LG TV that won’t turn on an easy fix.

You can discharge residual power from your LG TV remote control by disconnecting it from its power source, the batteries. While the batteries are removed, you can press and hold the power button to help drain any remaining electrical charge.

Additionally, it’s also recommended to repeatedly press all of the buttons on the remote to make sure none of them are stuck. This also helps clear any dust build-up in the gaps around these buttons that might contribute to them not working.

Follow these steps to discharge the remote control of your LG TV:

Step 1: Open the battery compartment on the remote control and remove the batteries.

Step 2: Press the power button on the remote control for 60 seconds.

Step 3: Press all of the buttons on the remote control to loosen their gaps from any
            dust buildup.


Note: You can also smack your remote into your hand to dislodge any dust buildup inside the remote control.
Step 4: Reinsert the batteries and close the battery compartment.
Test if the remote control is working again and if you can turn on your LG TV.

Step 5: Repeat everything up to five times if it didn’t work the first time.

4. Unplug the power cable from the back of your LG TV.

Difficulty Very Easy ●○○○○
Number of Steps3
Duration1 minute and 5 seconds
Costs$10

Sometimes, it’s not enough to simply unplug the power cable from the power/electrical outlet. It also helps to keep the power cable unplugged from the DC-IN port at the back panel of your LG TV.

This action can help you reset this connection and ensure that the power cable isn’t loosely connected. Please note that you must also wait a minute before plugging the power cable back into your TV’s DC-IN port.

Follow these steps to unplug the power cable from the back of your LG TV:

  • Unplug the power cable of your LG TV from the power/electrical outlet.
  • Unplug the other end of the power cable from the DC-IN port on your LG TV.
  • Wait 60 seconds before plugging the power cable back into the power/electrical outlet and the DC-IN port on your LG TV.

In case of a faulty or damaged power cable, we highly recommend buying a replacement cable as soon as possible. Your fave online store should have you covered or for that matter, your go-to electronic store. 

5. Plug the power cable of your TV into a different power outlet.

Another simple LG TV that won’t turn on easy fix is to try plugging its power cable into a different power/electrical outlet. Plus, this is also a quick and easy way to test if the power outlet you’ve been using is problematic or not.

If your LG TV turns on properly when connected to a different power/electrical outlet instead, this is your confirmation that the previous outlet is faulty. For good measure, you can test the outlet again using a voltmeter to check if you can get any readings.

This method should also be able to tell you if the power cable or the LG TV itself is problematic. You can make this conclusion if your LG TV doesn’t turn on after trying other different power electrical outlets.

6. Check if your LG TV’s HDMI port & cable are working.

Difficulty Very Easy ●○○○○
Number of Steps4
Duration10 seconds
Costs$10 – $20

An LG TV might appear turned off if the HDMI connection is faulty and isn’t transmitting data correctly to the display. This can be due to a loose connection between a faulty HDMI cable or port on your LG TV and the external input device.

Make sure to unplug the HDMI cables from both your LG TV and the external input device. When you plug the cable back in, it must be tight and secure to prevent a loose connection from messing up the input.

We also recommend blowing air inside the HDMI ports of the LG TV and external input device to eliminate any dirt or dust buildup. Check also if you’re using the appropriate input source on your LG TV so you can switch to the correct one.

Switch to the correct input source on your TV by following the steps below:

Step 1: Press the input button on your TV remote control to open a menu panel on the bottom of the display.

Step 2: Select/click the correct input from this menu panel.
Step 3: Select/click Home Dashboard to set an input source as default.
             
Step 4: Select/click an input device to put a checkmark on it and set it as the default.

If the HDMI cable you’re using isn’t working, it might be damaged or faulty. We recommend buying a replacement cable immediately. Again, you can order things online. 

7. Disconnect the Fail Circuit wire inside your LG TV.

Difficulty Easy ●●○○○
Number of Steps4
Duration2 minutes

The LG TV not turning on can be the result of a false positive due to the unit drawing too much power. This can happen when you set your LG TV to a high-performance configuration such as increasing its display brightness level to around 100.

In this case, the LG TV won’t turn on easy fix is to disconnect the Fail Circuit wire that’s tripping as a result of the false positive. This involves opening up your LG TV but it’s a rather easy method to perform as it only involves cutting one wire.

Follow these steps to disconnect the Fail Circuit wire inside your LG TV:

Step 1: Use a screwdriver to unscrew and remove the back panel of your LG TV.
Step 2: Look for the Fail circuit wire using the label guide printed on the power supply board as a reference.


Note: In this example, the Fail Circuit wire is the fifth wire from the bottom so make sure to only target that specific wire.
Step 3: Cut the Fail Circuit wire using a wirecutter.

Step 4: Reinstall the back panel of your LG TV and check it turns on.

The Fail Circuit wire is only a protective mechanism that prevents your TV from sustaining damage from power spikes so it should still work even without it. However, it’s still an important feature so you can still reconnect it afterward using a wire.

Before you reconnect it, make sure that you’ve already dialed down the settings configuration that caused your LG TV to draw too much power. With this, your TV should turn on and work like normal again.

8. Conduct a flashlight test to check the backlights of your LG TV.

Difficulty Hard ●●●●○
Number of Steps21
Duration1 hour
Costs$40 – $100

FAIR WARNING:
First up, we recommend you understand the instructions here thoroughly so you can apply the flashlight test successfully. Never be haphazard when dealing with sensitive electronics. 

An LG TV might also appear to not be turning on if its backlights are dead. You’ll be able to confirm if this is the case by shining a flashlight into your LG TV display screen to look for images.

If the result of the flashlight test doesn’t show any images on the display, then another reason is causing your LG TV not to turn on. However, if you see images on the display, that means that you need to replace the LED strips on your LG TV.

Replacing the LED strips on your isn’t easy to do but if you can afford a repair service, you can always let a technician do it for you.

Follow these steps to install replacement LED strips on your LG TV:

Step 1: Put your TV on a smooth and flat surface facing down. 
           Use a screwdriver to unscrew and remove the back panel.


Note: Taking a photo of how your LG TV looks on the inside is highly recommended. This will help you reinstall everything you’re taking apart back to their proper places.
Step 2: Disconnect the cables from the speakers and remove these speakers.

Step 3: Use a screwdriver to unscrew the plastic cover under the T-con board.

Step 4: Disconnect the cable on the main board to remove the plastic covers.

Step 5: Use a screwdriver to unscrew the metal covers above the scan drive boards.

Step 6: Use a screwdriver to unscrew the bezel from all sides.

Step 7: Lift/remove the metal covers above the scan drive boards.

Step 8: Lift the scan drive boards and unplug the ribbon cables that connect them to the T-con board.

Step 9: Flip the TV and remove the bezel you unscrewed earlier.

Step 10: Flip the scan drive boards to the side of the LCD panel and secure them with tape.

Step 11: Remove the tapes and tabs from all sides of the TV that holds the LCD panel and the chassis together.

Step 12: Use suction cups to carefully lift and remove the LCD panel.

Step 13: Release the tabs holding the filter frame and the chassis together to remove this frame.

Step 14: Tape the corners of the light filters to hold them together and remove them from the chassis.

Step 15: Flip the TV once more and dislodge the reflector clips by pinching them with
              your pliers.

Step 16: Flip the TV once more and disconnect the clips holding the reflector sheet.


Note: You can remove these clips smoothly by sliding them slightly to the side before lifting them.
Step 17: Lift/remove the reflector sheet from the chassis.

Step 18: Unplug the cable connected to the LED strips.

Step 19: Detach and uninstall the LED strips using a 5-in-1 tool.

Step 20: Install the replacement LED strips and plug the cables connecting to them back in.


Note: You can secure the LED strips to the chassis by putting double-sided tape directly where you’re installing them.
Step 21: Put everything back in its original position and reinstall the back panel of
your LG TV.

That certainly can be winding. But you should remember that factoring repairs yourself can save you tons of precious dollars if done right, that is. 

9. Replace the faulty and damaged capacitors inside your LG TV.

Difficulty Easy ●●○○○
Number of Steps6
Duration10 minutes
Costs$10 – $16

Over time, the capacitors inside your LG TV might sustain burn damage or become swollen and bloated. You can usually tell if your capacitors are faulty because a common sign of this is when you hear clicking sounds on your TV.

A straightforward LG TV won’t turn on easy fix for this hardware issue is to replace the faulty capacitors with new ones.

Please note that replacing the capacitors requires you to solder the replacements into the power supply board. If you’re not confident with your soldering skills, we recommend sending your TV for a repair service to save you the trouble.

Follow the steps below to replace the capacitors inside your LG TV:

Step 1: Use a screwdriver to unscrew and remove the back panel of your LG TV.
Step 2: Inspect the capacitors installed on the power supply board of your LG TV.

Step 3: Look for swollen/bloated capacitors as shown in the image below.

Step 4: Remove and flip the board containing the faulty capacitors.
Use a soldering iron to melt the solder on the capacitors to uninstall them.

Step 5: Install the replacement capacitor in place of the faulty capacitors.

Step 6: Flip the board once more to solder the replacement capacitors into the board.


Note: Use a wirecutter to snip the long ends of the capacitors down to where you soldered them.

Being careful where you put your soldering iron can pay huge dividends for you. Wrong placement of the hot rod can turn your PCB upside down. 

10. Check/replace the faulty board inside your LG TV.

Difficulty Easy ●●○○○
Number of Steps6
Duration10 minutes
Costs$100 – $200

Aside from the capacitors on your LG TV, the main board and power supply board themselves might be faulty. Damage to any of these boards will prevent your LG TV from turning on.

Your only option to fix this hardware problem is to replace one or both of these boards. Replacement boards can be pricey, but they should still be cheaper compared to buying a new LG TV.

Again, if you’re not confident with your technical skills, we highly suggest contacting LG customer support so you can book a repair service with their qualified technicians.

Follow these steps to check/replace the faulty boards on your LG TV:

Step 1: Put your TV on a smooth and flat surface facing down.
Use a screwdriver to unscrew and remove the back panel.


Note: Taking a photo of how your LG TV looks on the inside is highly recommended.
This will help you reinstall everything you’re taking apart back to its proper places.
Step 2: Disconnect the main board and power supply board so you can get a better look at them.

Step 3: Check both boards for any signs of damage such as burn marks.

Burn marks below the main board.
Step 4: Replace them with new boards if damaged or faulty.

Another requirement to do repairs is a trained eye. If you’re having trouble seeing the letters in the paper, then doing sensitive TV repair may not be for you or you could be making the situation worse. 

FAQs About LG TV Won’t Turn On

Why is my LG TV suddenly not turning on?


A power supply issue is the common cause for LG TVs to suddenly not turn on. Other possibilities include the remote control not working and hardware-related damages.

Why isn’t my LG TV turning on even when the standby light is on?


Your TV is not turning on even when the standby lights are on means the remote control is dead. Even if the TV is powered, it still wouldn’t turn on if the battery of the remote is not working. 

Why isn’t the standby light turning on when I plug in my LG TV?


There’s no electricity flowing into your LG TV. This is why the standby light on your TV isn’t turning on whenever you plug it into the power source. Also, this could be due to a faulty power outlet or power cable.

How much is the repair service for an LG TV not turning on?


Repair services cost $150 – $250 if you send your TV to an LG technician for consultation. This is to cover charges for both labor and functional parts.

If the repair requires more parts that aren’t included in the flat rate, the price can go much higher. Indeed, doing the repairs yourself can save you some. 


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