How to Fix a Samsung TV That Keeps Power Cycling

If your Samsung TV keeps power cycling, turning on and off repeatedly, it can be frustrating and disruptive. This guide provides step-by-step methods to diagnose and fix the issue, ensuring your TV operates smoothly again.

Method 1: Perform a Soft Reset

A soft reset can help resolve temporary glitches causing the TV to power cycle.

Turn off the TV using the remote or the power button on the TV.
Unplug the TV from the power outlet.
Wait for 60 seconds to allow the TV to fully discharge.
Plug the TV back in and turn it on.
Check if the power cycling issue persists.

Method 2: Check for Overheating

Overheating can cause the TV to power cycle as a safety measure.

Turn off the TV and unplug it from the power outlet.
Feel the back and sides of the TV to check for excessive heat.
Ensure the TV’s vents are not blocked and have proper airflow.
Let the TV cool down for 30 minutes.
Plug the TV back in, turn it on, and monitor if the issue continues.

Method 3: Update the TV’s Software

Outdated software can cause power cycling due to bugs or compatibility issues.

Press the Home button on your remote to open the Smart Hub menu.
Navigate to Settings > Support > Software Update > Update Now.
Wait for the TV to download and install the latest software.
Restart the TV after the update is complete.
Check if the power cycling issue is resolved.

Method 4: Disconnect External Devices

Faulty external devices can interfere with the TV’s operation and cause power cycling.

Turn off the TV and unplug it from the power outlet.
Disconnect all external devices (e.g., gaming consoles, soundbars, or USB drives).
Plug the TV back in and turn it on.
If the issue stops, reconnect devices one at a time to identify the problematic device.
Replace or repair the faulty device if necessary.

Method 5: Inspect the Power Cable and Outlet

A damaged power cable or faulty outlet can cause power cycling.

Turn off the TV and unplug it from the power outlet.
Inspect the power cable for any visible damage, such as fraying or cuts.
Test the power outlet by plugging in another device to ensure it’s working properly.
If the cable is damaged, replace it with a compatible one.
Plug the TV back in and turn it on to see if the issue is resolved.

Method 6: Reset the TV to Factory Settings

A factory reset can resolve software-related issues causing power cycling.

Press the Home button on your remote to open the Smart Hub menu.
Navigate to Settings > Support > Self Diagnosis > Reset.
Enter your TV’s PIN (default is usually 0000).
Confirm the reset and wait for the TV to restart.
Set up your TV again and check if the power cycling issue is resolved.

Method 7: Check for Power Supply Issues

A faulty power supply board can cause the TV to power cycle.

Turn off the TV and unplug it from the power outlet.
Open the back panel of the TV (if you’re comfortable doing so) to inspect the power supply board.
Look for signs of damage, such as burnt components or bulging capacitors.
If you notice damage, contact a professional technician for repair or replacement.
Plug the TV back in and turn it on to see if the issue is resolved.

Method 8: Disable Auto Power On/Off Features

Auto power features can sometimes cause the TV to power cycle unintentionally.

Press the Home button on your remote to open the Smart Hub menu.
Navigate to Settings > General > Power and Energy Saving.
Disable features like Auto Power Off or Sleep Timer.
Restart the TV and check if the power cycling issue stops.

Method 9: Test the TV in a Different Outlet

Electrical issues in the outlet can cause the TV to power cycle.

Turn off the TV and unplug it from the current outlet.
Plug the TV into a different outlet in another room.
Turn on the TV and monitor if the power cycling issue persists.
If the issue stops, the original outlet may need repair by an electrician.

Method 10: Contact Samsung Support

If none of the above methods work, it may be time to seek professional assistance.

Visit Samsung’s official support website or call their customer service.
Explain the issue and the steps you’ve already tried.
Follow their instructions or schedule a repair service.
Allow a certified technician to diagnose and fix the problem.