Why Is My Projector Flashing? [Fix Flickering issues in 2 minutes]


If you think, Why is your projector flashing, then read this article to get the problem fixed. Talking about best projector, there are countless types and models of projectors are available from different companies and brands which are made of different parts and systems. 

So it's best to refer to the user manual that comes with the projector in order to determine why the projector is flashing or blinking. However, here we discuss some of the most common reasons and solutions for why projectors flash and produce a blinking image.

common projector flashing issues

1.Power Light: Always check your power light. If your power light is blinking green light, it means that the projector is on or in some cases warming up. But if the power light is orange or blinking orange light, it means that the projector might be in standby mode or might be turned off.

2.Lamp Light: If the lamplight on the projector is flashing orange or red color, then it means that the lamp light is going to burn out soon and it needs to be replaced.

3.Temperature Light: If your temperature light is flashing orange or red, it means that your projector is overheating and you need to shut it off for a while or that it needs cleaning.

Note: Before you proceed with solutions, take a look at how to set up 3D projector to check whether you have connected everything properly.  Also make sure that you clear any clutter or unneeded things from around the projector. Also, remove the things that may be blocking its vents.

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solution for Projector Flashing issues

Here are some of the other things that you can do to make sure your projector stops flashing.

First, check the video cables. Make sure the cable is connected properly and securely to your projector and if possible change the cable on pr twice. If you are using a projector in Video mode, be careful to which input the cable is connected. Ensure that the cable is connected to the proper input.

  • Try a different video input and check if the flickering is not just on one type of connection.
  • Unplug or remove any devices that may cause interference with your device such as other projectors, TVs, bulbs, radios, fans etc.
  • Connect the projector to another computer.
  • Use another power outlet.
  • Check the image resolution of the pictures which are displayed in the frame and make sure that the video card, graphics card or video source is compatible with the setting that you want to display.
  • Make sure your device is suitable for your projector. 
  • Use the display settings recommended in the User manual.
  • Change refresh rate in Windows.
Why Is My Projector Flashing

refresh rate for Windows

Windows 8 and 10

  • Right-click on Start, then go to the Control panel.
  • Double-click on Display.
  • Click "Change display settings" that are displayed on the right-hand margin.
  • Click the "Advanced settings"
  • Then, Click the "Projector" Tab
  • Under "Projector Settings" is "Screen refresh rate".

Windows 7

  • Click on Start, go to Settings and then go to the Control panel.
  • Double-click on DISPLAY.
  • Click "Change display settings" in the right-hand margin.
  • Click on the "Advanced settings".
  • Click the "Projector" Tab.
  • Under the names of "Projector Settings," you will see "Screen refresh rate"

Windows XP

  • Click on Start, then go to Control Panel.
  • If you are under Category View, then click on the "Switch to Classic View" in the left-hand menus.
  • Double click on the "Settings" Tab.
  • Click on the "Advanced" button.
  • Click on the "Projector" Tab.
  • Under "Projector Settings" you will see the "Screen Refresh Rate"

For Mac users running operating system OS X, you can go to System Preferences directly and click on Display where you can change the refresh rate for an external display that is connected to your Mac.

Some video cards may have their different utility software with its own instructions. So refer to your graphic card's user manual for instructions related to changing the refresh rate.

Many times, both film and digital projectors can face problems like blinking, flickering or flashing when projecting an image on the screen. This may be due to multiple sources like a fluctuating power source, a bulb or optical problem. It can also be due to a low refresh rate on a digital projector or a low frame rate on a film projector.

The refresh rate is referred to as the number of times a displayed image is regenerated or produced again using a digital projector. On the other hand, the frame rate refers to the number of frames shown on the screen after every second using a film projector.


When you are encountered with a flashing projector, make sure you consider all the above-mentioned possibilities. I hope this article has answered the question Why is my projector flashing.  Share your thoughts about this article in the comment section 🙂

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