How to troubleshoot the Samsung TV that keeps turning off by itself

Cold shutdown

Unplug the TV from the outlet for 30 seconds and when you plug it back in, plug it directly into a known working outlet. This is called a “cold shutdown” and should recalibrate the TV.

TVs and projectors that can connect to SmartThings can be turned on using compatible devices, sometimes automatically. However, if abnormal "power on" signals are sent through the wireless network, they will trigger this function and make the TV turn on.

If you do not want this function

Step 1. navigate to Settings

Step 2. Go to General and then Network

Step 3. Open Expert Settings

Step 4. Select Power On with Mobile and turn the setting off.

Eco Solution Configuration

The Eco Solution function turns off the TV to save energy when it detects no activity for a long time, follow the path below to check its settings:

Settings > General > Eco Solution > Auto power off > Turn off

Timer Settings

The Timer turns off the TV after a preset period of time, follow the path below to check its settings:

Settings > General > System Administrator > Time > Timer > Turn off

Software Updates

Keep your TV software updated, follow the path below to check its settings:

Settings > Support > Software update > Update now

• If a set-top box, game console, PC, or other external device was connected to your TV, disconnect the power cables from the external devices and reconnect them. The TV screen may display a black screen if the source your TV was connected to is turned off.

• When no external devices are connected to the TV, configure the Sources connected to the TV via the path: Settings > Source > TV

• Be sure to use a certified HDMI cable. If you use an HDMI cable that is not certified, the screen may appear black or a connection error may occur.