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Why is my 55 inch LG TV turning off by itself?

Why is my 55 inch LG TV turning off by itself?

While watching tv, it will shut off by itself. I have to unplug it wait a few minutes and plug it back in again, then it works again for awhile, then shuts off again. I have no idea why. I have it plugged into a power surge protector. I was gone away on vacation for 2 weeks and it was previously working fine, until I returned home. Now it shuts off by itself.

ANSWERS:

@gwilliam could be an issue with failed capacitors on the power board or over heating. Your set shuts off because it goes into protection mode. It will definitely help if you can provide the exact model number. It might also be helpful if you post some images of all of your boards inside your TV with your question. That way we can see what you see. Use this guide Adding images to an existing question for that.

My LG started turning on….then off….then on….and so on. I unplugged everything waited plugged just the tv back in and it kept doing it. So I went and got in front of the tv and it stopped so I figured it was batteries in one of the remotes. I was right the fire stick batteries were dead and that is Amazons stupid idea of telling me to change the batteries in the fire stick remote!!! I was mad thinking my tv was on the fritz contemplating buying a new tv. Problem solved CHECK YOUR BATTERIES.

If you have another device attached to your tv check the batteries on the remote, we had the same issue with a firestick after battery replacement it was fine

I’ve had my LG 55” TV 2 years last night it started powering OFF every 5 seconds when I turned it On. I checked the power cable, disconnected all HDMI inputs (cable box , blu ray player and Echo Cube). This had no effect. I replaced the batteries in each remote control. When I replaced the batteries in the Echo Cube remote it stopped.  The batteries in the Eco Cube remote were half dead which was causing the remote to send out power Off commands to the LG TV.  The TV has been working fine ever since. I hope this helps.

Double check the fuse in the plug. Mine was a 10amp fuse, but on the plug says it was meant to be a 13amp one. So I changed it and had no problem since.

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