#1 How to troubleshoot a Samsung TV that keeps turning off by itself
If your TV is turning off by itself, there are several possible causes.
The common reasons for a TV that turns off by itself are your
settings and the external devices connected to the TV.
Method 1: Unplug the TV for 30 seconds
Unplug the TV from the outlet for 30 seconds and when plugging it
back in, plug it directly into an outlet that you know works properly.
This is called a ‘soft reset’ and should recalibrate the TV.
Method 2: Check your TV settings
Eco Solution settings
Auto Power Off is a Samsung TV's default setting, which saves
electricity by turning the off automatically after 4 hours if there is no
interaction with the TV from the user. A warning pop-up screen
appears before the TV is turned off. There is a way to turn off the
feature by following the path.
Settings -> General -> Eco Solution -> Auto Power Off -> Select Off)
Sleep Timer and Off Timer settings
Sleep Timer or Off Timer could be enabled if the TV suddenly turns
off by itself. You can turn this feature off with the path below.
Settings -> General -> System Manager -> Time -> Sleep Timer or Off
Timer -> Select Off)
Software updates
Keep your TV's software up to date.
Settings -> Support -> Software Update -> Update Now)
Method 3: Check your connections
The Set Top box remote controls connected to the TV can send out
standby commands.
IP connected "Smart devices" such as Google Alexa or SmartThings
that could issue a Standby command.
When there are no external devices connected to the TV, set the
Sources to TV. (Settings -> Source -> TV)