Why Brand-New Dryer is Making a Thump Noise and How to Fix It?

Like many household appliances, dryers generate various sounds during operation, ranging from gentle humming to the rush of airflow. These noises are commonly accepted as part of the dryer's typical operation. However, among the array of sounds, a brand-new dryer making thump noises can be a cause for concern. Unlike the typical background noise, thumping noises are notable for their persistent and repetitive occurrence.

Understanding the origins and implications of these thumps is crucial for maintaining a smoothly functioning dryer and ensuring a peaceful laundry experience.

What are The Common Causes of Dryer Drum Making Thump Noise?

There could be various reasons why thumping noises occur in dryers, and it's important to understand the root cause of the problem before attempting to fix it. Some common causes include:

  • Misaligned drum: Vibrations during transportation or installation can displace the drum, causing it to collide with the dryer's interior.
  • Presence of foreign objects: Loose screws or clothing items may inadvertently enter the drum, generating disruptive thumping sounds during operation.
  • Mechanical issues with components like the idler pulley, drum rollers, or belt: Wear and tear over time or lack of maintenance can cause these parts to malfunction, leading to irregular drum movements and subsequent noise.

Identifying and addressing these common causes are essential steps in resolving thump noises in dryers and ensuring smooth laundry cycles.

How To Identify the Type, Duration, And Timing Of Dryer Thump Noise?

Different sounds indicate different issues with your dryer. Here's a breakdown of common noises and their potential causes:

  • Rattling or screeching: Loose objects in the dryer's baffles or drum felt.
  • Thumping or squealing: Dryer's idler pulley or drum rollers may have run dry.
  • Tapping: Split dryer belt slapping against the drum.

To effectively address thump noises in dryers, it's essential to conduct thorough diagnostic steps. 

Start by discerning the characteristics of the thump noises, including their type, duration, and timing. Are the noises sharp or dull? Do they occur intermittently or persistently during the drying cycle? Understanding these features can offer valuable insights into the root cause of the problem.

Then, proceed with a systematic examination of the dryer. Begin by unplugging the appliance and meticulously inspecting the drum for any foreign objects, such as loose screws or small clothing items. Eliminate any debris to mitigate potential sources of noise.

Additionally, inspect the drum alignment to ensure it sits evenly on its support rollers. Misalignment can cause the drum to thump against the dryer's sides during operation. 

By diligently adhering to these diagnostic steps, you can identify the underlying cause of the thumping noises and implement suitable measures to resolve them effectively.

How To Prevent Thump Noises in Dryers? 

To avoid recurring thump noises in your dryer, consider the following preventive measures:

  • Empty pockets before loading laundry to prevent foreign objects from entering the dryer.
  • Adhere to loading specifications to maintain balance and prevent excessive wear on dryer components.
  • Schedule regular maintenance checks to ensure proper alignment and functioning of dryer parts.

Integrating these preventive measures into your laundry routine can assist in preserving the optimal performance of your dryer and extending its lifespan.

How to Troubleshoot the Problem and Repair It?

Addressing thump noises in dryers requires detailed troubleshooting and repair techniques. 

Begin by inspecting the drum alignment and adjusting it as needed to prevent contact with the dryer's sides during operation. If misalignment isn't the issue, focus on identifying and replacing worn components such as the idler pulley, drum rollers, or belt. 

By following step-by-step instructions tailored to each specific cause, you can effectively resolve thump noises and restore your dryer's smooth operation. 

If you come across complicated issues or aren't confident about troubleshooting on your own, it's advisable to seek professional help. Trained technicians possess the necessary expertise and specialized tools to accurately diagnose and fix intricate problems, assuring the safety and optimal functioning of your dryer.

Feel free to contact a trusted appliance repair service for assistance beyond your expertise. Investing in professional help can save time, prevent additional damage, and prolong the lifespan of your dryer.


Dealing with a loud noise coming from your brand-new dryer can be quite bothersome. However, with proper diagnosis and troubleshooting steps, you can efficiently tackle this issue. By following the guidelines mentioned above, you will be able to determine the underlying cause of the noise and take necessary measures to fix it.

Remember to prioritize safety and consult a professional if needed for complex repairs. Enjoy quiet and efficient drying cycles with your newly fixed dryer!