Is the blinking red light on your LG TV putting you into chaos? We are here to help. It occurs due to insufficient power supply, blown fuse, power board failure, defective TV components, etc. Sometimes, it might indicate that your LG TV runs with outdated firmware. In this article, we have discussed the reasons and simple fixes to troubleshoot the red light blinking issue on your LG TV.
Why Does LG TV Have a Blinking Red Light
|Power cycle the LG TV.
|Voltage fluctuations or wall sockets may be defective.
|Check if your wall socket receives sufficient power.
Use a surge protector and plug in the LG TV.
|Issue with a HDMI cable or TV port may be faulty
|Check if the HDMI cable is connected firmly.
Connect the device to a different port.
|Remote not working issues.
|Re-pair the LG TV remote.
|Outdated LG TV firmware.
|Update the LG Smart TV.
|Any internal component may be malfunctioned.
|Contact the LG Service Center and repair it.
How to Fix Red Light Blinking on LG TV
Here are the troubleshooting methods that you can follow to fix the red light blinking issue on LG TVs.
Inspect the Power Socket
In most cases, fluctuating voltage might be why the red light blinks on the TV. If there is a power supply failure, turn off your TV and unplug the power cable. Contact an electrician to get the issue fixed. Once the power supply issues are fixed, connect the power cable of your TV to the power cord and turn it on. Then, check if the blinking red light issue is fixed or not.
Check the Power Cord
Inspect the LG TV cord for any visible damage or loose connection. Sometimes, the red light may blink if the cable is tangled. Unplug the power cord and reconnect it to check if it works.
The kinks and knots on the power cable increase the electrical resistance and generate heat. It may cause damage to the hardware of your TV. If the power cord is damaged, contact the LG Service Center to buy a new one.
Power Cycle LG Smart TV
You can manually restart your LG TV to resolve the red light blinking issue.
1. Unplug the power cord of your TV.
2. Press and hold the power button for 30 seconds.
3. Wait for a few minutes.
4. Then plug it back into the power supply.
Check if the red light blinking issue on your LG TV is resolved.
Update LG TV to the Latest Version
If cooling down your LG TV doesn’t fix the issue for you, the reason might be the software update issue. So, ensure you have updated your LG TV to the latest version. If not, update your LG TV’s firmware to the latest version.
Go to Settings > All Settings > Support > Software Update > Check for Updates. Within minutes, your LG TV will be updated to the latest version.
Replace the HDMI Cable
The faulty or damaged HDMI cable connected to your TV may cause the red light blinking issue on your LG TV. It is highly recommended to buy premium HDMI cables because the local HDMI may get damaged easily when used in the long term. Still, if the problem is not resolved, the issue may be with the HDMI port. So check the HDMI port for damage.
Reset LG Smart TV
There might be some technical bugs on your LG Smart TV. This may be why your LG TV is displaying a red light continuously. You can factory reset your LG TV to rectify this issue. Doing this will erase all the data stored on your LG TV. After the reset, check if the red light still blinks on your LG TV.
Go to Settings > All Settings > General or Support > Reset to Initial Settings. Confirm the same to reset the LG TV to factory Settings.
Turn Off the LG TV and Turn it On
If you find that your LG TV is overheated, turn off your LG TV and unplug the power cable. Then, wait 2 hours to make your LG Smart TV cool down. After that, plug the LG TV into the power socket and turn it on. Check if the red light blinking issues on your TV still occur. If the issue is not fixed, try the next method.
Check for Main Board/Power Board Damage
If none of these methods fix the issue, the main board may be a culprit. To check that, take the TV case apart and use the multimeter to check the correct voltage across the boards. Visit the nearest LG Service Center to replace the main board, which will cost between $200 – $400. If your LG TV has a warranty, they will fix the issue at no cost.
Observe the LG TV Blinking Codes
Sometimes, the blinking light may indicate a particular issue. If you observe the blinking light in a particular pattern, follow these fixes to rectify it.
|LG TV red light blinking once
|Change the IC and main board.
|LG TV red light blinking 2 times
|Change the capacitor and T-Con board.
Replace the backlight strips.
|LG TV red light blinking 3 times
|Replace the faulty capacitor with a newer one.
Change the main board.
|LG TV red light blinking 4 or 5 times
|Keep the LG TV turned off for 2 hours.
Change the backlight strips.
Contact Customer Support
If nothing works to turn off the blinking red light, the last solution is to contact LG Customer Support. You can contact them through chat or call. Then, follow the guidelines provided by the support agent to fix the issue.
If you find an internal component failure, contact the LG Service Engineer and repair your TV before it shuts down completely.
Frequently Asked Questions
It is an indication that it requires service. Contact the LG Service Center and ask them to fix the issue.
Generally, continuous red light flashing indicates a power glitch on the PSU (power supply unit) or an overheating problem.