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Samsung TV Making A Buzzing Noise (Causes and How To Fix)  

As an owner of a Samsung TV, I know it can be incredibly frustrating when it starts making a buzzing noise. I recently experienced this issue and was determined to find a solution. After doing some research and testing, I am here to share how I solved the issue as well as other solutions I discovered.

Sometimes the buzzing, crackling, or humming noise that comes from your Samsung TV is caused by electrical feedback. When this happens, try to arrange the cables and make sure the TV has good ventilation.

When you find that your TV is making a buzzing noise, don’t worry. The reason why it does that may just be simple. Finding out what the problem is first will make it easier to fix.   

Volume Is Too HighBuzzing from speakers’ wooferLower the volume, check for software updates
Electrical FeedbackRelated to cables, bad ventilationArrange cables neatly, improve ventilation around the TV
Poor VentilationCramped space, overheatingOpen windows, use air conditioning, ensure enough space around the TV
Incorrect PlacementTilted or wobbly TVProperly mount TV on wall or place on a solid, flat surface
Problem with HDMI PortsOverheating HDMI portsUnplug cords from HDMI ports, check if buzzing stops
Problem with Power SupplyBloated power supply boardReplace power supply board
Software UpdatesOutdated softwareCheck for software updates, install automatic updates
Soft ResetGeneral troubleshootingTurn off TV, unplug for 60 seconds, plug back in, turn on TV
Hard ResetTroubleshooting, reset to factory defaultsGo to Settings > General > Reset, enter default PIN (0 0 0 0), click “Yes” to reset, set up TV again

Why is My Samsung TV Making a Buzzing Noise?

The following are some reasons why your Samsung TV is making that buzzing noise.

Volume Is Too High

When you hear a buzzing or humming sound when you’re watching from your Samsung TV, especially for 2022 models, this may be coming from the speakers’ woofer. 

This may happen if the volume is too high. Trying to lower the volume can help to check if that is indeed the problem. 

According to Samsung, upcoming software updates could help fix this issue. If you’re an owner of a new model that has this buzzing sound from the speakers, check for software updates.

Electrical Feedback

As mentioned earlier, when you hear a buzzing, crackling, or humming noise from your Samsung TV, it can possibly be caused by electrical feedback. This feedback is commonly related to the cables.

It can also be because of bad ventilation in the TV room or around the location where you placed your TV.

Poor Ventilation 

If your TV is in a cramped space in your house where little air may be flowing, or there may only be a small space at the back of your TV for air to pass through, it may get too warm.

Overheating caused by poor ventilation could be the reason why your TV has a buzzing sound. It is also one of the reasons for electrical feedback. 

Incorrect Placement or Installation

Sometimes the reason why your TV is buzzing is that it’s not securely placed on a solid and flat surface or that it’s not mounted properly on the wall.

If your TV is tilted or wobbly, it can cause glitches in the audio or video display. It’s good to plan out where to place your TV most conveniently and safely to avoid problems like a buzzing sound in the future.

Problem with HDMI Ports

Another place to check if your TV is making buzzing noises is the HDMI ports, which connect streaming devices to your TV. 

Samsung TVs usually have at least two HDMI ports. If you use these ports a lot, they may overheat and cause a buzzing noise from your TV.

You can check if this causes the buzzing noise by unplugging the cords from your TV’s HDMI ports. If the buzzing stops, the problem is with either or both of the HDMI ports.

Problem With Power Supply Board

If you have checked the previous reasons and resolved them and you still find your TV making buzzing noises, the problem may be more complicated and could be coming from its inner parts. 

This is possible especially if you’ve had your TV for a time now. You can check your TV’s power supply board, which looks like a large circuit board. Locate it and see if it’s bloated. If it is, it may need a replacement.

How to Get Rid of the Buzzing Noise from Your Samsung TV

The reasons have been laid out for why your Samsung TV may be making that buzzing noise. Now here are the things you can do to get rid of that annoying sound.

Keep Your TV Cables Neat

Sometimes the reason why there’s a buzzing noise is because of the TV cables at the back of your TV. Make sure they’re well placed and not tangled up. 

Carefully arrange your TV cables and make sure everything is plugged well in its proper place. Once you’ve done this, see if that gets rid of the buzzing sound.

Fix The Ventilation Around Your Samsung TV

One of the common causes of the buzzing noise is the lack of proper ventilation for your TV. To improve ventilation, open the windows in the room where your TV is so that air can circulate properly. Or you can turn on the air conditioning whenever the room is too warm.

If your TV is propped on a stand, make sure there’s enough space around the TV. It’s better not to have shelves positioned too close to avoid blocking air circulation.

If your TV is a wall mount, it’s important that there is enough space between the wall and the back of your TV so air can properly circulate.

Make Sure Your TV Is Properly Installed

If your TV is not properly installed, glitches to the audio and video may result. Make sure all the parts are in their place and that your TV has enough space in the room to prevent any problems. 

A reliable TV stand is needed so that your TV can be secure on a flat surface. It’s good to place it against a wall for better support. Check to see if your TV stand is wobbly by giving it a nudge on the side that’s most prone to accidents. If it wobbles, get a better TV stand. 

Make sure TV cables are arranged properly to avoid them being caught under, causing the TV to wobble. 

For wall-mounted TVs, installing may be a challenge, especially if you don’t have prior experience. It’s better to have someone help you as you follow a manual or guide. Make sure your wall-mounted TV is placed comfortably for you to avoid a neck or eye strain.

Update Your TV Software

Sometimes your TV software just needs updating to get rid of the buzzing noise. If your TV is connected to the internet, you can have your software updates installed automatically. The updates will be functional the next time you turn on your TV.

To install automatic updates, use your remote control and go to Settings. Select Support, then Software Update, and then Auto Update.

To install updates manually, go to Settings, select Support, then Software Update, and then Update Now. Do not turn off your TV until the update is finished. The TV will restart automatically once it’s done.

Replace Your Power Supply Board

If you find that the problem is with your power supply board, you can follow these steps.

  1. Locate your TV’s power supply board and take it out by pulling out the screws that keep them in place. Make sure not to lose any of the screws as you will have to put them back.
  2. If the power supply board looks bloated, it may be damaged and may need a replacement.
  3. If you indeed need a replacement, get a new power supply board and make sure it’s compatible with your TV.
  4. Install the new power supply board where the old one used to be and carefully put back the screws.
  5. Turn on the TV and see if the buzzing sound is still there.

If the buzzing sound is still there, check for other probable causes or consult a technician for help.

Try doing a soft reset

Often, a soft reset is all that is needed to solve issues on a Samsung TV. A soft reset does not erase any data. To soft reset a Samsung TV, you simply need to turn the TV off, then remove the plug from the wall outlet and wait for 60 seconds, then put the plug back in and turn the TV on again.

Try a hard reset

A hard reset involves completely reseting the TV to its factory defaults and your data will be erased.

To do this, do the following:

  1. Turn on the TV and press the “Home” button on the remote
  2. Go to “settings”
  3. Then click “general”
  4. Then click “reset”
  5. You must then enter a 4 digit pin number which is 0 0 0 0 by default
  6. Then click ”Yes” to reset the TV
  7. The TV will then turn off once it has finished resetting
  8. You can now turn the TV back on and set it up again

Problem Solved? We Sure Hope So!

We’ve laid out some of the reasons why your Samsung TV may be making that buzzing sound, and hopefully, we’ve helped you find a way to fix it. 

If not and you’ve already done what you can, don’t hesitate to consult your local Samsung TV support center for help.