Fix Your Hisense TV Flashing Red Light Fast!

Marc Ray

by Marc Ray

Last Updated on

Hisense TVs are popular for their affordability and features, but like any electronic device, they can sometimes experience issues like flashing red lights.

This can be caused by a variety of factors, including power supply issues, backlight problems, and motherboard issues.

Jump to Flashing Red Light Pattern

1 time | 2 times | 3 times | 4 times | 5 times | 6 times | 7/8 times | 9 times | 10 times

This article will explain the different flashing red light patterns and their corresponding solutions.

Understanding Hisense TV Flashing Red Light Codes

On a Hisense TV, a flashing red light is a diagnostic indicator that signals various potential malfunctions.

The table below shows the specific system or part that is the source of the problem based on the number of times the red light flashes.

1 Flash: Stuck in Standby Mode

When the red light on a Hisense TV blinks once, it is in standby mode and cannot be used.

The TV is simply waiting for you to take action to perform a task! It’s that simple.


To fix this, simply press the power button on your TV or the remote control. This will turn on the TV, and you will be able to watch it.

Power cycling the Hisense TV
Power cycling the Hisense TV

Power cycling the Hisense TV will also turn off the red light, essentially “waking up” the TV from its standby mode.

2 Flashes: Power Supply Issues

If the light is blinking 2 times, it indicates an issue with the power supply.

There is probably an issue with the power board or the voltage source that’s causing the TV to malfunction.

To fix it, you will have to perform the power cycling process! Follow these steps:

Power cycling the Hisense TV
Power cycling the Hisense TV

Step 1: Unplug the TV from the power outlet.

Step 2: Press and hold the power button on the TV for 20 seconds.

Step 3: Plug the TV back into the power outlet.

Step 4: Turn on the TV.

Power cycling is a widely adopted approach for resolving various issues with electronic devices, and it often proves successful in addressing power supply problems on Hisense TVs.

If it doesn’t work, you can also try to change the power cable of the TV or change the power outlet to ensure that the issue is not from any 3rd party device.

Lastly, try removing the surge protector and plug your TV directly into the outlet.

3 Flashes: Inverter or Backlight Issue

The inverter converts DC power to AC power, which is used to power the backlight of the TV. A backlight issue can manifest in various ways, including uneven or flickering brightness.

If the red light flashes 3 times in a cycle, it indicates an issue with the backlight circuit board.

To confirm this, you can perform a simple flashlight test.

Flashlight test on Hisense TV
Flashlight test on Hisense TV

Step 1: Turn on your Hisense TV.

Step 2: Shine a flashlight on the screen of the TV.

Step 3: If you see much dimmer pixels in the flashlight light, that indicates a broken backlight circuit board.


If you are not comfortable replacing the backlight circuit board yourself, you can contact Hisense customer support for assistance.

4 Flashes: Motherboard Problems

If the red light on your Hisense TV flashes 4 times in a cycle, there is a high chance of a faulty motherboard.

Symptoms: If your Hisense TV is experiencing frequent crashes, freezing, or unexpected shutdowns, these could be signs of a faulty motherboard.

Additionally, you may notice distorted pictures or sound, or the TV may not turn on at all.

Types of Motherboard Problems: The red light flashing four times can indicate various motherboard issues, including:

  • Overheating: This can happen due to dust build-up, insufficient ventilation, or a malfunctioning fan.
  • Faulty RAM: Random access memory (RAM) stores temporary data the TV needs to function. If the RAM is faulty, it can cause crashes, freezes, and other problems.
  • Damaged CPU: The central processing unit (CPU) is the brain of the TV. If it is damaged, it can cause severe malfunctions that require professional repair.
Hisense TV faulty motherboard
Hisense TV’s faulty motherboard


If you are not comfortable troubleshooting internal hardware components, contacting Hisense support is the safest and most effective course of action.

5 Flashes: Faulty T-CON Board

If the red light on your Hisense TV flashes 5 times in a cycle, it indicates an issue with the timing controller board (T-CON board).

Hisense TV's T-CON board
Hisense TV’s faulty T-CON board

Replacement T-CON boards can be readily purchased online through platforms like Amazon and eBay, typically ranging in price from $50 to well over $100.

You can replace the timing controller board (T-CON board) if you have experience with electronics, but it’s strongly recommended to have an expert do it if you’re not confident in your abilities.

Before you start:

  • Gather your tools and supplies. You will need a screwdriver, a spudger, and a replacement T-CON board.
  • Unplug the TV from the power outlet.
  • Place the TV face down on a soft surface, such as a towel or blanket.

Step 1: Remove the back cover of the TV. This is usually done by removing a few screws.

Step 2: Locate the T-CON board. It is usually a small board located behind the screen.

Step 3: Disconnect the cables from the T-CON board. Be careful not to damage the cables.

Step 4: Remove the screws that secure the T-CON board to the TV.

Step 5: Carefully remove the T-CON board from the TV.

Step 6: Install the new T-CON board in the reverse order that you removed the old T-CON board.

Step 7: Connect the cables to the new T-CON board.

Step 8: Replace the back cover of the TV.

Step 9: Plug the TV back into the power outlet and turn it on.


  • If the TV does not turn on after replacing the T-CON board, check to make sure that all of the cables are properly connected.
  • If the TV turns on, but there is no picture, check to make sure that the T-CON board is properly seated.
  • If the TV turns on and there is a picture, but it is distorted or has lines, try adjusting the contrast, brightness, and color settings.

If you are still having problems, please consult a qualified TV repair technician.

6 Flashes: Cooling System Fault

If the red light on your Hisense TV flashes 6 times in a cycle, it means that the TV is overheating and the cooling system is not functional.

Ensuring adequate ventilation around your TV is crucial for preventing overheating and potential cooling system malfunctions.


The best and quickest way to fix it is to clean the TV vents and use a can of compressed air to blow out any dust and debris, or you can also use a small duster.

Cleaning Hisense TV vents
Cleaning Hisense TV vents

You can also use a vacuum cleaner with a brush attachment, but be careful not to damage the components inside the TV. Because most of the time, it occurs because the vents get blocked by dust.

You also need to ensure that your TV is not placed near a window or in direct sunlight as it malfunctions the cooling system.

7/8 Flashes: Backlight Issues

Your Hisense TV’s red light flashing 7 or 8 times indicates a backlight issue that is more complex than the one that causes the red light to flash 3 times.

Difference between 7/8 Flashes and 3 Flashes

While both indicate backlight issues, the 7/8 flashes signify a more complex problem than the 3 flashes. It could involve a malfunctioning inverter board, damaged LED strips, or a combination of both. Troubleshooting and repair may be more challenging.

Replacing Hisense TV defective Backlight
Replacing Hisense TV’s defective Backlight


For more complex backlight issues, it is strongly advised to seek professional assistance from a qualified technician to ensure proper diagnosis and repair.

This Reddit thread discusses user experiences with backlight issues on Hisense TVs.

9 Flashes: Backlight Voltage Issue

If the red light on your Hisense TV flashes 9 times in a cycle, it also indicates an issue with the backlight, but this time, it is more specifically a current or voltage issue.

Risks of DIY Repair

Attempting to fix the backlight voltage issue yourself can be risky. If you are not experienced with electronics repair, you could further damage the TV or void the warranty.

Hisense Customer Support

For this issue, it is highly recommended to contact Hisense customer support. They have qualified technicians who can diagnose and fix the problem safely and efficiently. You can reach them by phone or online chat.

10 Flashes: Multiple Board Problems

Hisense TV Multiple Board Problems

If you see the Hisense TV flashing a red light 10 times a cycle, that is probably the worst case you can imagine.

If the red light on your Hisense TV flashes 10 times in a cycle, it indicates that the powerboard, motherboard, or backlight strips are faulty, or all of them are faulty.

There is also a possibility that only one board is faulty, but the other two boards cannot function because of that one faulty board.


To fix it, you should start with backlight strips. You can test them using an LED tester or batteries, though you must open up your Hisense TV to get to the internal hardware.


Diagnosing and fixing multiple faulty boards can be a complex process and may require advanced technical skills.

Once you have checked all of the LEDs, see if the red light is gone or not. If it does, then the issue is fixed; if not, then you might have to change the power supply board as well!

These boards are available on Amazon and eBay for less than $60. Just find the power board of the same model number. You can find the model number written on the board itself.

Replacing the Power Board in Your Hisense TV

Here’s a step-by-step guide on replacing the power board in your Hisense TV:


Gather your tools and materials:

  • Phillips head screwdriver
  • Microfiber cloth
  • Container for screws

Disassembling the TV:

  1. Place the TV face down on a clean and soft surface, like a towel or blanket.
  2. Locate the screws securing the back cover. These are typically located on the back panel of the TV.
  3. Unscrew the designated screws using the Phillips head screwdriver.
  4. Carefully remove the back cover and place it aside.

Locating and Removing the Faulty Power Board:

  1. Identify the power board. It’s usually a rectangular metal plate with multiple cables connected to it.
  2. Carefully disconnect all cables connected to the power board. Note the position and order of the cables for easier reassembly.
  3. Locate the screws holding the power board in place.
  4. Unscrew the screws using the screwdriver and carefully remove the faulty power board.

Installing the Replacement Power Board:

  1. Take the new power board and position it in the designated slot where the old one was.
  2. Secure the new power board using the screws you removed earlier.
  3. Carefully reconnect all the cables to the new power board in the same positions as you noted earlier.

Reassembling the TV:

  1. Replace the back cover of the TV and align it with the screw holes.
  2. Secure the back cover with the screws you removed earlier.
  3. Turn the TV upright and place it on a stable surface.
  4. Connect the power cord to the TV and then to a wall outlet.

Testing the TV:

  1. Turn on the TV using the power button.
  2. Observe if the red light has disappeared and the TV functions normally. If it does, you’ve successfully replaced the power board!

Additional Tips:

  • Take pictures of the disassembled TV and cable connections before removing the faulty power board. This will help you reassemble the TV correctly.
  • Be careful when handling the cables and electronic components. Avoid touching any exposed circuits or components.
  • If you’re not comfortable replacing the power board yourself, it’s best to seek help from a qualified technician.

That’s it. Hopefully, this will fix your Hisense TV faulty boards.

Additional Tips for Preventing Hisense TV Red Light Issues

In addition to the troubleshooting steps outlined above, here are some proactive measures you can take to prevent red light issues from occurring on your Hisense TV:

1. Keep the vents clean and unobstructed: Dust and debris buildup can block the vents and restrict airflow, leading to overheating and potential damage to the internal components. Regularly clean the vents with a compressed air duster or a soft brush to ensure proper ventilation.

2. Avoid placing the TV in direct sunlight or near heat sources: Excessive heat can stress the TV’s components and shorten its lifespan. Position your TV in a cool, well-ventilated area away from direct sunlight and heat sources like radiators or fireplaces.

3. Maintain a comfortable room temperature: Extreme temperatures, both hot and cold, can negatively impact the TV’s performance and potentially trigger red light problems. Aim to keep the room temperature between 60°F and 85°F.

4. Use surge protection: Power surges and fluctuations can damage the TV’s internal circuitry. Connect your Hisense TV to a surge protector to shield it from unexpected power fluctuations.

5. Update the TV firmware: Hisense regularly releases firmware updates that address bugs and improve performance. Updating your TV’s firmware to the latest version can help prevent red light issues and enhance the overall user experience.

6. Handle the TV with care: Avoid dropping, bumping, or subjecting the TV to physical stress. This can damage internal components and trigger red light problems.

7. Avoid using harsh chemicals or cleaning agents: When cleaning the TV’s exterior, use a soft, damp cloth and avoid harsh chemicals or cleaning agents that can damage the surface or internal components.

By following these preventative measures, you can significantly reduce the risk of encountering red light issues on your Hisense TV and ensure its long-lasting performance.


While the information provided in this article is intended to be helpful and informative, it is essential to remember that attempting repairs on your TV can be risky. If you are not comfortable with troubleshooting electronic devices or lack technical expertise, it is highly recommended to seek professional assistance from a qualified TV technician.

This disclaimer helps to manage expectations and prevent potential harm to yourself or the TV due to inexperienced repair attempts.

Additional Resources

Last Thoughts on Hisense TV Red Light Blinking Issue

Knowing what the different flashing red light patterns on a Hisense TV mean can help you troubleshoot the problem and determine if you need to contact a professional for assistance.

The red light patterns range from being stuck in standby mode to having a serious problem with the internal hardware. You cannot fix all of the technical issues just by reading an online guide; sometimes, you need to call in the experts to swap out a few parts.

Intricate problems with internal circuitry need a cautious approach to these fixes. You may fix the flashing red light on your Hisense TV by following the correct procedures and, if necessary, consulting a professional.

We encourage you to share your experiences with your Hisense TV’s red light issue and any troubleshooting tips you may have found helpful in the comments section below. Your insights can help others who are experiencing similar problems.

Troubleshooting Other Common Hisense TV Problems

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About the author

Marc Ray

Marc Ray

Marc Ray, Founder of A tech enthusiast & expert in smart home technology, helping homeowners upgrade their homes with the latest smart home security & automation solutions. Marc has over 10 years of experience in smart home technology. He holds a certification in Home Automation Systems and has been featured in Hubspot. You can learn more about Marc and his work. Read his Book, Smart Home Hacks!

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