If you see one or more horizontal lines on your LG TV screen, then your TV has become vulnerable to errors. As horizontal lines are caused by technical difficulties and hardware issues, going to customer support isn’t the only solution.
Meanwhile, if you would like to fix this horizontal lines issue on your own, then here are some troubleshooting measures you can try.
Why Does My LG TV Showing Horizontal Lines on Screen?
The horizontal lines on your LG TV mostly occur due to internal hardware issues. However, that is not the case. It is also caused due to a loose cable connection, issues with your cable, bugs on the TV, and a lot more.
How to Resolve the Horizontal Line Problem on LG TV
There are multiple fixes you should follow to fix the horizontal line problem on your LG TV. To fix the problem easily on your own, simply follow the troubleshooting measures given in the following article.
Restart Your LG TV
In most cases, users have found that restarting the LG TV solves the vertical lines on the screen. By restarting, you can clear the memory and any bugs present on your TV system, thus fixing the issue of your TV in no time.
So unplug and replug the power cable in 3-5 minute time intervals. Then turn on your LG TV to finish restarting.
Check for Loose Connection
Do you see horizontal lines while using an external device on your LG TV? If so, this implies a connectivity issue. If your external cable is partially connected to your LG TV, it won’t receive a vast signal, which results in horizontal lines.
So, remove the external cable and plug it again into your LG TV to resolve this issue.
Manually Tune Your Cable Connection
If you own a cable TV provider and find its screen showing horizontal lines, the problem is a poor signal. Due to the wrong antenna positioning on the roof and issues with manual tuning of the antenna, you will face this issue.
So, to fix this, first, make sure to position the antenna on your terrace. Next, go to the Settings on LG TV and choose the Channels option. Then, choose Manual Tuning. Now, you will see the signal strength of your cable TV provider. If the signal strength is lower, either use a signal booster or call your Cable operator regarding the issue.
The above-listed fixes will support cable and satellite dish users.
Take a Picture Test on an LG TV
If you have no idea about the issue, then simply take a picture test on your LG Smart TV via the following steps.
- LG webOS 6.0: Launch All Settings → Click on the Support tab → tap Screen Self-Diagnosis → Yes.
- LG webOS 4.0: Open All Settings → Hit Support tab → Choose Additional Settings → Click on Picture Test → Yes.
After taking a picture test, you can determine the type of issue your LG TV is facing. With the results, you can come up with a counter-fix to fix the issue.
Pixel Clean Your LG TV
Pixel cleaning is a feature that removes unwanted pixels stored on the screen. You can use it to remove the horizontal lines on your LG TV.
To perform the pixel cleaning on LG TV,
- LG webOS 2022: Choose All Settings → tap on the General tab → OLED Care → click on OLED Panel Care → Choose Pixel Cleaning → Done.
- LG webOS 5.0: Press the Settings button on remote → choose All Settings → Picture → go over Additional Settings → select OLED Panel Settings → tap on Pixel Refresher.
Once you tried pixel refresher, check if your LG TV screen is still showing the horizontal lines on the screen.
Factory Reset Your LG TV
When the above-mentioned methods don’t fix the horizontal Lines on LG TV, then it is possible that your LG TV is facing an internal hardware problem. So before assuming, try factory resetting your LG TV as a last resort to fix the problem.
Once you’ve done the resetting, boot up your LG TV and check if the horizontal lines have gone. If a reset doesn’t help, you should stop troubleshooting and contact LG TV customer service for help. They will check if the issue is hardware and give you the solution you need.
This is how you should deal with seeing a horizontal line issue on your LG TV screen. Try out the fixes I have listed here, and let me know how they helped you in my community forum chat room.
