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LG TV - Why is My TV Making a Cracking or Popping Sound? — LG Help

Some types of noises are normal. You will need to determine the type of noise to properly troubleshoot the issue.

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TroubleshootingTVs

What to Check First

  1. Does the noise get louder as you increase the volume? Yes No.
  2. The noise may be caused by the cabinet expanding or contracting due to varying temperatures.
  3. Do you hear the noise on all Inputs/Channels? Yes No.
  4. Do you hear the noise while watching live TV or something else, such as a Blu-ray disc or video game? Live TV Other.
  5. The noise may be vibration due to high volumes or high bass.
  6. If you hear the sound only during abnormally loud commercials or action scenes, try to activate the auto-volume feature from the audio menu.
  7. Try to hook a known working device into the same input. If you no longer hear the sound when the other device is hooked up, you may need to replace the cable or the faulty unit itself.
  8. Tune to an HD channel to check if the noise is present there as well.
  9. If the sound works well when tuned to other channels, it is likely coming from the program or broadcast station of that channel.
  10. Some types of noises are normal. You will need to determine the type of noise to properly troubleshoot the issue.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for LG TV - Why is My TV Making a Cracking or Popping Sound??

Does the noise get louder as you increase the volume? Yes No.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

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Read the Official LG Guide