How To Fix Samsung TV Buzzing Noise?(6 Solutions)

One evening I was watching TV as usual, but then a sudden buzzing noise appeared.

Nobody likes trying to watch their favorite show and having the volume compete with an odd sound coming from the television itself! 

That’s why decided to investigate this issue further.

Buzzing in a Samsung TV could be caused by an electrical source of feedback, a need for a software update, or an issue with one of the external devices connected to the television.

To resolve these problems, check each cable connected to the television by unplugging and replugging them, make sure the software is fully updated, and disconnect all the external devices until the buzzing stops.

In this article, I will go over why the buzzing noise may be occurring on your Samsung TV as well as a step-by-step guide on how I fixed that issue. 

Why Does Your Samsung TV Make A Buzzing Noise?

Samsung TVs are certainly not made to create a buzzing sound outside of the audio that should be coming from your favorite television show.

If you hear buzzing, or indeed, a popping, crackling, or humming sound, something definitely needs to change.

Below, you’ll find a list of potential reasons why your Samsung TV is making a buzzing noise.

  1. Your Component Cables are Plugged into the Wrong Inputs.
  2. Your RF Coaxial Cables Are In a Bad Channel.
  3. Your Device Needs A Software Update.
  4. Your Audio Cable is Malfunctioning.
  5. Your Cable Box is in a Bad Input(a very common issue).
  6. Your External Device is Malfunctioning(a very common issue).

Let’s take a closer look at each of these issues so that you can analyze why one of the problems is causing your Samsung TV to buzz.

1. Your Component Cables are Plugged into the Wrong Inputs

Component cables are identified by their colors: two red, and one white.

These must be placed in the corresponding colored inputs on the back of your Samsung TV.

Otherwise, your Samsung TV could experience electrical feedback, which is what causes the pesky buzzing sound. 

It is often difficult to tell which input is marked for the corresponding cable because, often, the back of your television faces a wall and there isn’t much access to light.

For this reason, it is a common mistake to mix up the audio and video cable inputs for your component cables.

2. Your RF Coaxial Cables Are In a Bad Channel

RF Coaxial cables are another potential culprit when it comes to hearing a buzzing sound that should not be coming from your Samsung TV. These are often connected on one end to a cable provider or an antenna.

 Usually, the reason a buzzing sound is coming from your RF Coaxial Cable’s involvement with your Samsung TV is not because it is plugged into the incorrect input.

Rather, it is usually because an RF Coaxial Cable is plugged in, but unable to receive input from the channel it corresponds to.

This can cause a constant buzzing sound.

3. Your Device Needs A Software Update

Samsung TVs are no exception to today’s constantly-updating software trends.

To make sure your Samsung TV isn’t creating a sound simply out of a need for bugs to be fixed in the latest software update, the best thing to do is check the Settings section using your remote.

Most of the time your TV will update itself automatically once there is an update available, but it won’t hurt to take a look at the updates manually.

4. Your Audio Cable is Malfunctioning

Possibly one of the first places to check when considering the source of a buzzing sound coming from your Samsung TV is the source of audio.

If you have an audio connection cable and it is either malfunctioning or connected improperly, this is the source of the buzzing sound. 

Audio cables are not just connections to external speaker devices.

An HDMI cable often doubles as an audio and visual cable, and so can an RF Coaxial cable, as previously mentioned. 

5. Your Cable Box is in a Bad Input

This is quite a common reason for many TV-related issues, including the buzzing sound.

If your Samsung TV is creating a buzzing noise, check that the cable box is not in an input that is malfunctioning due to dust or a broken piece of hardware.

I suggest you disconnect your cable box from the TV and then reconnect it in a few minutes, preferably to a different input.

If your cable box is not the issue, analyze the connections of your other devices, which we’ll cover in the section below.

6. Your External Device is Malfunctioning

Besides cable boxes, other external devices can be responsible for the buzzing sound your TV is making thanks to malfunctions in their hardware or even in their cables.

If you have any video game systems, DVD players, or other external devices connected to your Samsung TV, unplugging them will quickly reveal whether or not they are responsible for the sound.

This is the thing that was a troublemaker in my case. 

Once I disconnected and reconnected my streaming stick, the buzzing sound was gone.

It turned out that the TV wasn’t the one to blame.

How to Fix Samsung TV Buzzing Sound

To fix your Samsung TV’s buzzing noise, check the following guide:

  1. If Component Cables Are Plugged in Incorrectly – First, locate your component cables on the rear of the television. Unplug each of them, gently blowing into the inputs to clear them of dust. Then, with the help of a flashlight, make sure the red cables are plugged into the red inputs and the white cables are plugged into the white inputs.
  2. If your RF Coaxial Cables Are in a Bad Channel – The fastest way to both identify and resolve this issue is to make sure the cable is sitting firmly in its input, then change the corresponding channels until the buzzing stops or the Coaxial cable is ruled out as the source of the sound.
  3. If your device needs a software update – The easiest way to solve this problem is to use your remote to go to the Settings of your TV. Then, navigate to “Support,” sometimes called “Device Care.” Select “Software Update.” Next, restart your Samsung TV.
  4. If your Audio is Malfunctioning – If the Audio Cable is malfunctioning, replace it with a new version. If the buzzing persists after swapping out cables, test your original audio cable on a different TV. This way, you can rule out audio cables as the problem.
  5. If Your Cable Box is in a Bad Input – Disconnect the cable box(or any other external device) from the TV. Try gently vacuuming the back of the Samsung TV to remove dust and debris from the inputs. Then, plug the cable box back in. If the buzzing continues, test your cable box on a different TV to see if you need a brand-new cable box. If it does not continue, the problem was debris and a poor connection to the input.
  6. If your External Device is Malfunctioning – Once you’ve tested the cable connections between your devices like DVD players and video gaming systems and found the buzzing to remain consistent, you’ll need to get a completely new external device or have the old one serviced, because your Samsung TV is not the cause of the buzzing. 

Here are a few other articles that will be helpful in troubleshooting the buzzing noise:

6 Ways To Fix Samsung Soundbar Volume Problems

Your Samsung TV Has No Sound?(We Found 8 Quick Fixes)

4 Easy Ways To Fix Samsung TV Optical Out No Sound

How To Fix Samsung TV Sound Keeps Cutting Out?(8 Fixes)


To wrap it all up, buzzing comes from electrical feedback which can be caused by poor cable connections, external devices such as cable boxes or DVD players malfunctioning, or incorrect cable plugins.

 If you’ve cleaned the inputs on your TV of debris, made sure all cables were connected properly and tried changing channels, the buzzing is not coming from your Samsung TV!

If, however, you do all of these things and the buzzing stops, congratulations! You’ve solved the problem.