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How to Fix LG TV Blinking Lights (STEPS)

Why do my LG TV lights keep blinking?

The main reason why your LG TV lights keep blinking is because the TV is overheating, a faulty circuit board or outdated and corrupt firmware.



Though your TV has overheated, it will behave as if one of the circuit boards has failed within.

The TV will shut down with a flashing light to suggest that something is amiss; however, this is a protection function designed to safeguard the TV from harm caused by excessive heat.


Circuit Board Issues

The most common source of internal damage in an LG TV is the power board.

The power board is a circuit board that transforms the greater voltage entering the television into lower voltages that are delivered to the television’s various internal components.

A worn capacitor is the most prevalent problem with the power board. These often prevent harmful currents from harming the remainder of the TV’s components.

These are inexpensive and simple to replace.


Software Defect

It’s fairly common for all devices and technology to face a software error now and then. In this case, it may be the culprit behind the blinking or flashing light on your LG TV.

You can easily fix this error on your own at home without needing the aid of a technician or extensive knowledge about LG TV.


How do I fix a LG TV screen that keeps blinking?

To fix an LG TV screen that keeps blinking, you will need to let it cool down, check the circuit board, or do a hard reset on your TV.


Let It Cool

The best thing to do is to keep the vents at the rear of the TV open and free of dust.

  1. Consider putting your TV away from direct sunlight, as well as moving other gadgets away from the TV.
  2. The ten-minute pause may be enough to cool the TV down.
  3. However, if it is still hot, consider unplugging it overnight.


Check the Circuit Board

The most obvious indicator of a deteriorated capacitor is a change in form.

  1. Because there are so many capacitors to compare to on the power board, identifying a worn capacitor is simple.
  2. It will transform from its regular flat/cylindrical shape to a bulbous shape with a rounded top.
  3. Unfortunately, if a circuit board is broken, you will need to replace it to repair your television.
  4. However, if the component is a detachable element of the circuit board, such as the capacitors listed above, you may be able to replace it.


Hard Reset Your TV

A hard reset can only remove minor faults from the TV’s memory, but it is one of your few alternatives if you are unable to view the screen.

It will retain all of your downloaded material and stored preferences as well.


Follow the procedures below to complete this reset:

  1. Turn off the television and disconnect any linked gadgets.
  2. Unplug the TV from the power supply.
  3. For 30 seconds, press and hold the power button on the TV.
  4. Wait 10 minutes before turning on the television again.
  5. Check the TV for functionality and reconnect any devices.


LG TV blinking lights


What does it mean when my LG TV power light is blinking?

When your LG TV power light is blinking, it means that there is an internal fault that it is alerting you of.


When the TV detects a problem with its internal parts or hardware, the red light on your LG TV blinks twice to inform you.


Why is my LG TV blinking and not turning on??

The reason your LG TV is blinking and not turning on might be because of an error in its power supply.


While your LG TV is operating normally, a power loss causes a brief pause causing your LG Plasma TV to flash.

A power interruption causes abrupt pressure, which might harm the TV’s internal components. As a consequence, the TV begins to warn you with blinking codes.


If your LG TV suddenly starts flashing and does not turn on, try the following solutions:

  1. Check that your power line is working properly and that there is no voltage fluctuation or high-frequency voltage concerns.
  2. Avoid overloading the power grid by not utilizing too much electrical equipment at once.
  3. Inspect the power supply line for damage and fix or replace it.
  4. Avoid using malfunctioning electrical gadgets in the same socket where your TV’s cable is plugged in.


LG Smart TV blink codes

LG Smart TV blink codes represent several codes and errors. A solid red light, for example, shows a TV is off but receiving power. While a solid green light shows the TV is on.

Below, we discuss them in detail.

Colour No. of Flashes Meaning
Red Solid TV is OFF but receiving power
Green Solid TV is ON
Green Continuous Serious Internal Issue
Blue 3 times TV is powering ON
Blue Continuous TV attempting to turn ON but unable to power supply issue
Blue turns Red Continuous Internal Issue with TV
White Solid TV is ON
White 3 times TV is turning ON


Why does my LG TV screen keep flickering on and off??

The reason your LG TV screen keeps flickering on and off could be because of changing brightness levels.


The brightness of the screen may fluctuate gradually at random intervals or rapidly over time. The most common causes of video flickering are faulty image menu settings or external devices connected to the TV.

A setting in the Picture menu might cause the video to flicker. The occurrence of video flickering may be affected by the TV’s energy-saving mode setting, which you can change using the following settings:

  1. On the remote control, tap the SMART button Smart Button.
  2. Navigate to Settings > PICTURE > Energy Saving, then hit the Wheel or Enter button.
  3. If the Energy Saving option is set to AUTO, change it to OFF.
  4. If this addresses the problem, no further action is required.


Why is my LG TV power light blinking?

The reason your LG TV power light is blinking is because of an internal error which can easily be resolved by factory resetting your TV.


A factory reset will wipe any downloaded material as well as your saved preferences; thus, it is not recommended unless necessary.

  1. On your remote, press Home.
  2. Select Settings and go to General.
  3. From here select Reset to Initial Settings.
  4. When asked to input a code, the default value will be ‘0000’ or ‘1234.’
  5. Verify the factory reset.
  6. Please wait for the TV to completely restart before checking to see whether it is functioning again.
  7. To complete the setup, follow the on-screen directions.


How do I reset my LG TV if it won’t turn on?

To reset your LG TV, if it doesn’t turn on, you will have to reset your TV hard. This will not delete any existing data and can be done without turning your TV on or remote on.


To do so, follow these steps:

  1. Find the Power button on the TV and hold it down for roughly 10 seconds.
  2. Unplug the TV from the wall when it turns off.
  3. You must wait at least a minute for the power to cycle and complete the restart.
  4. Reconnect the TV and turn it on.
  5. Follow these steps to see if the issue that required you to restart has been addressed.


What causes a Blinking LG TV Logo?

The cause for a blinking LG TV logo could be a software error which multiple factors can cause.


It can be caused by anything from app bugs, faulty programming, power surges, settings, defect, software complexity, and much more.

You may easily resolve the software error issue on your LG TV by performing a factory or hard reset.


Other methods of repair include:

  1. Ensure the power stability of your house.
  2. Seek the assistance of a TV technician to resolve programming faults, software flaws and complexity, and setting defects.


How to fix LG TV flickering horizontal lines?

To fix an LG TV that is flickering horizontal lines, you will have to address its issue, which is the input device.

  1. To begin, try a different cable. This comprises both the Coaxial cable from the wall to the receiver and the signal line from the receiver to the TV, usually HDMI.
  2. If the problem remains even with fresh wires, you should contact your cable/satellite provider and request a replacement receiver.
  3. Because the other inputs are working properly, the problem is most likely with the external device rather than the TV.
  4. If the problem remains after attempting new cables and a new set-top box, you should have a professional repair specialist diagnose it.


Why does my LG TV blink a black screen?

The reason your LG TV is blinking a black screen is because of a power source problem that you can easily fix.


One of the most prevalent issues with LG TVs is that they randomly turn off and display a blank screen while in use. This problem is frequently resolved by changing the power supply.

  1. This can be determined by doing standard troubleshooting, such as a TV reboot.
  2. When using your LG TV, you should also avoid overloaded power strips wherever feasible.
  3. We always recommend connecting your TV straight to the wall.
  4. Whether the problem persists, try another TV’s power supply cable to see if it works.
  5. This will assist you in narrowing down the issue.


Why does my LG TV flash a green screen?

The reason your LG TV flashes a green screen is because of a hardware failure. As a consumer, the underlying hardware fault on an LG TV is the most difficult to spot.


This is because there are numerous pieces within the TV that users cannot see or access without opening the TV. This makes it difficult for customers to determine which part is defective.

If you feel your TV’s problem is due to internal hardware failure, we recommend calling a professional or LG technical assistance.


Why is my LG TV red light blinking?

The reason your LG TV red light is blinking is that there might be an unstable power connection.


A spike of energy usually causes this to your TV, which shorts out a component.

  1. Depending on where the power flow is disrupted, you will resolve this issue in a variety of methods, employing a variety of tools and replacement parts.
  2. Because replacing a power cable, power board, or television is costly, and it is recommended that you first check your surge protector and wall outlet.
  3. Connect your TV to a separate socket, using an extension cord if necessary, to determine whether or not your TV is the source of the problem.
  4. If it turns on, you know you need a new surge protector or an electrician to inspect your outlet.


Why is my LG TV flashing a orange light??

The reason your LG TV is flashing orange light is that it might be on power-saving mode.This is intended to turn off your TV after inactivity so that it does not remain on all day.


When this option is selected, your TV may go into sleep mode, and the light may blink orange. As a precaution, double-check your power mode settings.

  1. Turn on your LG TV and press the “Setting” button on your remote control.
  2. Then, using the remote’s “OK” button, navigate to “All Settings.”
  3. Then choose “General Eco Mode.”
  4. Turn off the 4-hour “Auto Power” setting by selecting the “Auto Power Off” option.


Why is my LG TV flashing a yellow light?

The reason why your LG TV is flashing a yellow light is because it may be overheating.


Overheating is to blame for the circuit board’s internal breakdown and the TV’s flashing yellow lights.

When your LG TV overheats, the flashing light indicates that something is incorrect or that an error has occurred.

  1. The best remedy to this problem is to perform a hard reset.
  2. The hard reset will erase the fault from the memory of your television.
  3. Please wait 10 minutes for your TV to cool down before resetting it.


Why is my LG TV flashing a white light??

The reason why your LG TV is flashing white light is because it is receiving remote control signals.


When you press a button on your remote control, your TV receives a signal. If the light is constantly flashing, then you should check if there is a button that is stuck on your remote causing the flashes.


How to fix LG TV power light blinking but has no picture

To fix an LG TV that has the power light blinking but no picture, you will need to reset your TV.


The first should be to do an electrical reset to eliminate any potential problems that are preventing your TV from starting up. To accomplish this:

  1. Unplug your LG TV’s power line from the wall.
  2. Wait two minutes.
  3. Reattach the power cord to the wall outlet.


Why does my LG TV power light fade out?

The reason why your LG TV power light fades out is that it is on power-saving mode.

To preserve power and lower power consumption, your LG TV can switch to power-saving mode, which changes a lot of things on your TV.

It will cause the power light to fade out and the display to get dimmer to save energy. You can turn this feature off easily through your TV settings.

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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