JUMP TO SOLUTION Solved

Original topic:

TV shuts off every 15 minutes

(Topic created: 09-10-2025 11:39 AM)
627 Views
BruceRocketman
Constellation
Options
LED and OLED TVs

QN90D Series Neo QLED is two months old and shuts off automatically every 15 minutes. 

1 Solution


Accepted Solutions
Solution
Samsung_Moderator
Community Manager
Community Manager
Options
LED and OLED TVs

Hello BruceRocketMan. Welcome to the Samsung Community! Here are some troubleshooting steps to try. 

Step 1: Check and disable settings
The most likely cause is an active timer or an energy-saving feature.
Disable "Auto Power Off": This setting can turn off the TV after a period of inactivity.
Press the Home button on your remote.
Go to Settings > All Settings > General & Privacy > Power and Energy Saving.
Find and disable the Auto Power Off function.
Disable "Auto Power Saving": This feature uses Wi-Fi signals and remote usage to turn off the TV if it detects inactivity.
From the same Power and Energy Saving menu, disable Auto Power Saving.
Disable "Sleep Timer": A sleep timer will turn off the TV after a preset time.
Navigate to Settings > General & Privacy > System Manager > Time > Sleep Timer.
Ensure the Sleep Timer is set to Off. 
Step 2: Perform a power reset
A power reset can clear any temporary software or electrical glitches.
Turn off the TV.
Unplug the power cord from the wall outlet.
Wait at least 30 seconds.
Plug the power cord directly into a working wall outlet, bypassing any power strips or surge protectors.
Turn the TV on to see if the issue is resolved. 
Step 3: Check external devices and connections
A faulty external device or cable can cause unexpected shutdowns, particularly if an HDMI-connected device is sending signals to the TV. 
Disconnect all external devices from the TV's HDMI and USB ports.
Watch the TV for 15 minutes to see if it stays on.
If it stays on, reconnect your devices one by one to determine which one is causing the problem.
You may need to disable the HDMI-CEC feature (called "Anynet+" on Samsung TVs) to prevent connected devices from controlling the TV. 
Step 4: Update the TV's software
Make sure your TV's firmware is up to date, as software updates can fix known bugs and improve stability. 
Navigate to Settings > Support > Software Update.
Select Update Now and install any available updates. 
Step 5: Consider hardware issues and contact support
Since your TV is only two months old, it is still under warranty. If the steps above do not solve the problem, there may be a hardware defect.
Possible hardware issues: The problem could be caused by a faulty power supply board, motherboard, or overheating.
Contact Samsung support: Since the TV is new, contact Samsung customer support to have a technician diagnose and repair the TV under warranty. 
Please let us know if this any help! 

View solution in context

1 Reply
Solution
Samsung_Moderator
Community Manager
Community Manager
Options
LED and OLED TVs

Hello BruceRocketMan. Welcome to the Samsung Community! Here are some troubleshooting steps to try. 

Step 1: Check and disable settings
The most likely cause is an active timer or an energy-saving feature.
Disable "Auto Power Off": This setting can turn off the TV after a period of inactivity.
Press the Home button on your remote.
Go to Settings > All Settings > General & Privacy > Power and Energy Saving.
Find and disable the Auto Power Off function.
Disable "Auto Power Saving": This feature uses Wi-Fi signals and remote usage to turn off the TV if it detects inactivity.
From the same Power and Energy Saving menu, disable Auto Power Saving.
Disable "Sleep Timer": A sleep timer will turn off the TV after a preset time.
Navigate to Settings > General & Privacy > System Manager > Time > Sleep Timer.
Ensure the Sleep Timer is set to Off. 
Step 2: Perform a power reset
A power reset can clear any temporary software or electrical glitches.
Turn off the TV.
Unplug the power cord from the wall outlet.
Wait at least 30 seconds.
Plug the power cord directly into a working wall outlet, bypassing any power strips or surge protectors.
Turn the TV on to see if the issue is resolved. 
Step 3: Check external devices and connections
A faulty external device or cable can cause unexpected shutdowns, particularly if an HDMI-connected device is sending signals to the TV. 
Disconnect all external devices from the TV's HDMI and USB ports.
Watch the TV for 15 minutes to see if it stays on.
If it stays on, reconnect your devices one by one to determine which one is causing the problem.
You may need to disable the HDMI-CEC feature (called "Anynet+" on Samsung TVs) to prevent connected devices from controlling the TV. 
Step 4: Update the TV's software
Make sure your TV's firmware is up to date, as software updates can fix known bugs and improve stability. 
Navigate to Settings > Support > Software Update.
Select Update Now and install any available updates. 
Step 5: Consider hardware issues and contact support
Since your TV is only two months old, it is still under warranty. If the steps above do not solve the problem, there may be a hardware defect.
Possible hardware issues: The problem could be caused by a faulty power supply board, motherboard, or overheating.
Contact Samsung support: Since the TV is new, contact Samsung customer support to have a technician diagnose and repair the TV under warranty. 
Please let us know if this any help!