Acer Monitor Blue Light Blinking [7 Quick Fixes To Fix]

Acer monitor blue light blinking

While I was engrossed in a project at my desk, I observed an unusual occurrence: the blue light shining from my Acer monitor.

At first, I thought it was just a minor issue that would go away on its own, but this wouldn’t be solved easily as time passed but later it becomes major issue.

I do some research to find out the solutions to this problem. After researching, I found that various issues can be caused for this problem

In this article, we will look at why your Acer monitor blue light is blinking and how to fix it.

Let’s get started!

How To Fix Acer monitor blue light blinking

These are the possible solutions if your monitor blinks blue light, you should try these solutions.

1. Power Reset The Monitor

When you face a problem like that, you should power reset the monitor before any troubleshooting.

Hopefully, it may work, and you may not need any other troubleshooting.

Reset your monitor by following these steps.

  • Shut down your monitor 
  • Disconnect the monitor from power cable also all other cables
  • Press the power button on the monitor and keep pressing the button for about 20 seconds
  • Now, reconnect the power cable with the monitor and ensure that DVI is connected securely
  • Turn on the monitor and check the monitor if it works.

2. Loose Cable Connection 

To solve the issue, you must ensure that all cables are connected securely.

If there is any loose connection, then remove the cable from both ends and plug it back tightly.

If it does work to solve the issue, then you must inspect if any old port is malfunctioning or damaged, and you must replace it with a new one.


You should not consider replacing the port by yourself as it can cause further damage; you must get in touch with an expert technician to avoid any potential damage to the monitor.

3. Defective Power Supply

Bad power supply boards or worn-out wires are major issues for the defective power supply.

If you face a problem, check if the power supply is connected to the power strip; if connected, ensure it is connected well.

Sometimes, the electric hardware is connected to a single power strip, it can lead to an electromagnetic issue that leads to a light blinking issue.

If you find any electric hardware connected to a single strip, remove all hardware connected to the single strip.

You should also check all cables connected to the power supply and check for faulty or cracked cables.

4. Update Drives

You should check the drives of your monitor; if you find any update or expired drives, you should need to update them.

You can check the updates of drives by following these steps:

  • Click on the “window key” then select the “settings.”
  • Search a “device manager” in the search bar then click on it 
  • Now look for the “driver” option, then click on it 
  • Double-click on the “SanDisk” or any of the options that you get by expanding the driver 
  • Now click on the “driver” and then click on the “update driver.”
  • Then select “Browse my computer for driver updates.” 
  • Select the “Desktop” by clicking on the browser option, then clicking on the next 

5. Monitor In Power Save Mode 

If you have not used your monitor for a long time, then the monitor will automatically go into the power save mode to save energy.

In order to solve the issue, you must inspect if your monitor is in power-saving mode. If it is, then you must exit the power-saving mode.

If your monitor is not connected well to the power supply, then there may be a lot of chances it can cause it to go into the power save mode.

Firstly, ensure that the monitor is connected properly to the power source. 

Sometimes, clicking on the keyboard and mouse awakes the monitor from power save mode.

6. Faulty Capacitors

Capacitors can be blown by overheating of the monitor. When the vents are blocked, heat can not escape, so heat blows up the inside capacitors.

If the inside capacitors are faulty, the monitor can not run properly, and faulty capacitors can also produce flickering on display.

If you face a problem, you should check the inside capacitors. If you find a faulty capacitor, you need to replace or repair it.

You can check the capacitors by following these steps

  • Power off the monitor and disconnect the monitor from a power supply
  • Unscrew all the screws from the back of the monitor and remove the back of a monitor 
  • Remove the power unit, unplug all the cables that connected the power unit to the supply power unit
  • Check the capacitors; if they are blown or faulty, you should replace them with a new one
  • Reassemble the monitor and tight the back of a monitor 
  • Now turn on the monitor if it works

7. Contact Customer Support

If you’re still facing the issue with your Acer monitor. You must contact Acer customer support.

Customer support will be able to provide you further instructions for this issue. They can also provide you a replacement or repair offer if your monitor is under warranty.

Final thoughts

These are possible solutions, if your Acer monitor flashing blue light.

  • Power reset the monitor
  • Loose cable connection
  • Defective power supply
  • Changing in the refresh rate


How do I turn off the blue flashing light on my Acer monitor?

Here are the steps to turn off the blue flashing light on the Acer monitor:

  • Firstly, turn off your monitor 
  • Now unplug every cable from your monitor and pc 
  • Press the power button of your monitor for about 15 seconds 
  • Then, reconnect the power cord to the monitor and turn it on to see if it works. If the monitor is still flashing light, then you must get in touch with an expert one

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