AV Receiver Clicking and Ticking Noises: Causes and Easy Solutions

What to Do About an AVR That Clicks and Ticks

Imagine settling in for a thrilling movie night, only to be interrupted by unsettling clicking and ticking sounds coming from your Audio Video Receiver (AVR). These unsettling noises, far from being mere annoyances, can be indicators of underlying problems within your beloved device.

Don’t let these sounds disrupt your entertainment experience! In this article, we’ll shed light on the common causes and implications of these clicks and ticks, empowering you to restore harmony to your home theater.

Identifying the Cause

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Clicking and ticking sounds emanating from your AV R can be concerning, but understanding their origins is crucial for proper troubleshooting. Here’s a breakdown of the common culprits:

Clicking Sound

  1. Power Fluctuations: When faced with an unstable voltage supply, your AV receiver automatically switches between power sources to maintain stability. This switching can produce audible clicks, especially noticeable during high demand or fluctuating electricity.
  2. Internal Relay Malfunction: The internal relay plays a crucial role in managing power sources within your AV Receiver. Over time, wear and tear can cause its contacts to deteriorate, leading to clicking sounds with each activation.
  3. Loose Connections: Loose cables inside the AV Receiver can vibrate against internal components, resulting in clicking noises.

Ticking Sound

1. Cooling Fan Issues:

The presence of noise from an Audio Video Receiver (AVR) is an indicator that the internal cooling fan may need attention.

Dust buildup on the fan can cause it to make a ticking noise as it disrupts the fan’s normal operation. Similarly, worn-out bearings within the fan may lead to a whirring sound due to increased friction.

In both cases, the noise suggests that maintenance is required to clean or possibly replace the fan, ensuring the AVR remains at a safe operating temperature and continues to function correctly.

2. Transformer Problems:

The low hum or ticking sound from your AVR could also be a sign of transformer issues. While tackling these yourself can be tricky due to the complexity of the component, understanding the symptoms and taking some preliminary steps can be helpful:

  • Increased volume or buzzing: A noticeable increase in the transformer’s humming sound alongside buzzing in the speakers might indicate internal damage.
  • Burning smell: This is a serious warning sign and potentially indicates a dangerous electrical issue. Immediately shut down your AVR and seek professional help.
  • Fluctuating power output: If the sound is accompanied by unstable power output, such as flickering lights or audio dropouts, this might also point towards transformer problems.

While these steps offer some clues, remember that diagnosing and repairing transformer issues best left to qualified technicians. Their expertise and equipment are crucial for accurate assessment and safe repair or replacement.

Do not attempt to open your AVR yourself to access the transformer, as this can expose you to dangerous electrical currents.

Check out: Do AV Receivers Add Input Lag?

Troubleshooting Solutions

General Tips

  • Restart the AVR: Sometimes, a simple restart can resolve temporary glitches. Power off the AV Receiver, wait for a few moments, and then power it back on.
  • Check Connections: Ensure all cables are securely plugged in and in good condition.
  • Update Firmware: If available, update the AV Receiver’s firmware for potential performance improvements and bug fixes.

Specific Solutions

Clicking Sound

  • Stabilize Power Supply: Consider using a voltage regulator or an Uninterruptible Power Supply (UPS) to ensure a constant and stable power supply, reducing the need for automatic switching. You can get a voltage regulator on Amazon.
  • Replace Internal Relay: If the clicking persists and is determined to be caused by a worn-out internal relay, consult a qualified technician for safe and proper replacement.

Ticking Sound

  • Clean the Fan: Remove dust and debris from the fan blades with compressed air to restore smooth operation and eliminate noise.
  • Replace the Fan: If cleaning the fan doesn’t resolve the issue, consider replacing it with a compatible model for optimal performance.

Advanced Troubleshooting

  • Error Codes: Consult the user manual or manufacturer’s website for guidance on troubleshooting specific error codes displayed by your AV Receiver.
  • Internal Diagnostics: Some AVRs offer self-diagnostic tools to identify potential hardware issues.
  • Professional Assistance: If the problem persists or involves complex repairs, don’t hesitate to seek assistance from a qualified technician.

Preventative Measures

To minimize the risk of clicking and ticking sounds and ensure the longevity of your AV Receiver:

  • Regular Maintenance: Regularly clean the AV Receiver and its components, and inspect for loose connections.
  • Avoid Overloading: Ensure connected devices don’t exceed the AVR’s power capacity to prevent overheating and damage.
  • Surge Protection: Protect your AV Receiver from power surges and spikes with a surge protector.
  • Upgrade the AVR: Consider upgrading to a newer model with advanced features and better reliability, especially if your current AVR is outdated.

Consulting a Professional

If troubleshooting efforts do not resolve the noises or if you suspect internal damage or electrical issues, it’s time to consult a professional. A qualified technician can safely and effectively diagnose and repair any issues with your AV Receiver. Their expertise is crucial in ensuring that the repair or replacement of components is done correctly and safely.

Conclusion

By promptly addressing clicking and ticking sounds in your AVR and following the provided troubleshooting tips, you can ensure its smooth operation and extend its lifespan. Remember, regular maintenance, avoiding overloading, and seeking professional help when needed are key to maintaining optimal performance.

Sources:

  1. HiFiVision.com
  2. Overclockers Forums – Voltage Regulator Clicking?
  3. AudioShark Forums – Amplifier keeps cutting out and make clicking sounds
  4. AVS Forum – Denon X3700H – Transformer Switching Sound
  5. Home Theater Academy – What To Do About An AVR That Clicks And Ticks
  6. Linus Tech Tips – AVR ticking non-stop
  7. Techy Concepts – Denon Receiver Clicking On And Off! How Did I Fix It?
  8. Reddit – r/ASUS – AVR TICKING/CLICKING NOISE
  9. Audioholics – What causes AVR’s to make clicking noises?
  10. Tom’s Hardware – So my AVR started making noises.

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