(SOLVED) Why Does my Hisense TV Keep Turning OFF?


Why does my Hisense TV keep turning off?

The reason why your Hisense TV keeps turning off is due to a power issue, a cable issue, or a software issue.

 

Causes

  • Power issue
  • Cable issue
  • Outdated software

 

Outdated software

Later software versions come with a lot of improvements and fixes on old versions. Most TVs these days default to update their software automatically when an update is available, and your TV is connected to Wi-Fi.

 

However, if you (or someone) else using your TV toggle this setting off, you will have to manually keep checking for updates every now and then. If you don’t do this and run your version for a very long time while more and more updates come out, you’re bound to face glitches and bugs like these.

 

Cable issue

Loosely connected cables can send weak or unstable signals to your TV. This will confuse your TV’s main board and cause glitches. When your TV gets several of these signals at a time, it will shut itself down automatically to stop malfunctioning.

 

Please note that this can also happen if your TV’s cable ports are damaged. Perform a cable reset on your TV to resolve this issue quickly.

 

Power issue

Power issues are the most common reason behind your TV shutting off for no reason. Your TV, like all electronic devices, runs on power. If it gets this power via an unstable source, or if the power it receives is insufficient, it will stop functioning normally.

 

When the lack of power becomes severe enough, your TV will turn on its own (since it is not receiving enough power to support it).

 

Power issues can be caused by multiple factors. They can result from a power issue from your main supplier, a loose power plug in the main socket, or a faulty power cable.

 

Hisense TV keeps turning off

 

How can I fix my Hisense TV that keeps turning off?

To prevent your TV from turning off, either power reset it, cable reset it, or update its software.

 

Power reset

  1. Turn off your TV
  2. Unplug the power cord from the wall socket
  3. Press and hold the power button below the screen for half a minute
  4. Release the power button and let your unplugged TV rest for 10 minutes
  5. Come back and plug it back into the socket
  6. Start up your TV.

 

Cable reset

  1. Start by clicking the power button on the remote to turn your TV off.
  2. Now, unplug the TV from the main socket.
  3. Next, start unplugging all cables connected to your TV.
  4. After this, use a cloth to clean up the cables and your TV’s ports
  5. Check the cables and ports for any signs of damage
  6. If the cables appear damaged, replace them.
  7. If the ports show signs of damage, call customer support or an expert technician to have them replaced.
  8. After this, firmly place the cables back into their respective ports
  9. Plug your TV back into the wall socket and use the remote to switch it on.
  10. Click the power button on the remote again to turn your TV off and see whether the screen has stopped blinking.

 

Software update

  1. Navigate to settings
  2. Find and click support
  3. Go to system update
  4. Find and click firmware update
  5. Click check for updates
  6. Click install now if an update is available

 

My Hisense TV keeps on shutting off on its own- Why?

The reason your Hisense TV is automatically shutting off is either that your TV is overheating or because the backlight panel is damaged.

 

Causes

  • Overheating device
  • Damaged backlight panel

 

Overheating device

Hisense TVs are designed to protect themselves from overheating damage. Overheating usually occurs in TVs when they’re used back-to-back for long hours without breaks. While TVs are designed to withstand long hours of usage, they will begin to overheat if you use them long enough or if you do intensive work on them. i.e.  play high-quality videos/ games.

 

Overheating can eventually damage your TV’s internal hardware permanently- rendering it completely useless. To prevent this from happening, your TV shuts down when it has been overheating for too long. This allows it time to cool down.

 

Damaged backlight panel

Whatever you see on your TV’s screen is produced by its backlight. If your TV’s backlight gets damaged (or deteriorates), the screen will go black- giving you the impression that your TV has shut down. In such cases, calling customer support (or an expert technician) is your best bet.

 

How can I stop my Hisense TV from automatically shutting off?

You can stop your TV from shutting off automatically by giving it sufficient breaks between long usage or by getting it repaired by an expert.

 

Sufficient breaks

Giving your TV sufficient breaks between long use is a really good way to avoid overheating. As a bonus, doing this also lets your eyes rest and helps you connect back to the real world. You could also try keeping your TV in a cool environment to prevent it from overheating, i.e., turning on the AC. 

 

Repairs

If your TV’s backlight gets damaged, your only option is to call customer support and get it fixed, or, if the issue is too severe, check whether you’re eligible for a warranty.

In such cases, you could also call third-party technicians to conduct the repairs, but we recommend going to them after you’ve checked in with Hisense’s official customer support (it saves you from any potential warranty issues).

 

Why is my Hisense TV’s backlight turning off?

Your TV’s backlight is turning off randomly either because the sleep timer is activated or because the auto-brightness feature is enabled.

 

Sleep timer

Sleep timers are helpful. They let you keep track of your time on the couch. However, if you unintentionally activate one, you will get confused when your TV shuts down for no reason. This will also be the case if someone else in your house activates the timer without your knowledge.

 

Auto-brightness

Auto-brightness adjustment is the default setting of most smart TVs today. This feature saves energy and helps reduce the strain on your eyes while doing so.

 

The feature works by adjusting the screen’s brightness and matching it to the brightness of the environment your TV is in. This feature only causes issues when your TV is calibrated and makes a mistake while registering the level of brightness in its surroundings.

 

Specifically, if your TV detects lower light than is actually present, it will dim down the screen- causing the backlight to appear dark.

 

How can I turn my Hisense TV’s backlight on again?

To turn on the backlight, either deactivate the sleep timer, extend it or turn off auto-brightness.

 

Turn off auto-brightness

  1. Click the menu button on the remote
  2. Use the right arrow key to go to picture settings
  3. Increase the brightness via the remote
  4. Find auto-brightness settings in the menu and deactivate them.

 

Deactivate the sleep timer

  1. Click the menu button.
  2. Find the clock menu by tapping the right arrow button thrice
  3. There, you will find the sleep timer option.
  4. Turn it off or extend the timer limit.

 

Why does my Hisense TV’s screen blink before I switch it off?

Hisense TV’s screen blinks before it turns off, usually when there is some issue with the cables connected to your TV. For example, the port or cable could be damaged or faulty.

 

Damaged or faulty cables/ ports that connect your TV to third-party devices can glitch up your TV in different ways by sending it mixed, interrupted, or no signals from the third-party device. These signals can confuse your TV’s mainboard and cause your TV to malfunction in different ways. One commonly noted symptom of this issue is that your TV’s screen will blink right before you switch your Hisense TV off using the remote.

 

Luckily, a simple cable reset can resolve this issue very quickly.

 

Here are the steps:

  1. Start by clicking the power button on the remote to turn your TV off.
  2. Now, unplug the TV from the main socket.
  3. Next, start unplugging all cables connected to your TV.
  4. After this, use a cloth to clean up the cables and your TV’s ports
  5. Check the cables and ports for any signs of damage
  6. If the cables appear damaged, replace them.
  7. If the ports show signs of damage, call customer support or an expert technician to have them replaced.
  8. After this, firmly place the cables back into their respective ports
  9. Plug your TV back into the wall socket and use the remote to switch it on.
  10. Click the power button on the remote again to turn your TV off and see whether the screen has stopped blinking.

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