Dryer Making Loud Noise: What It Means and How to Fix It

A dryer that suddenly starts squeaking, thumping, or rattling is hard to ignore — and for good reason. While dryers do make some normal operating noise, a new or worsening sound is almost always a sign that something specific has worn out or shifted out of place. The good news is that most dryer noises point to a fairly small list of causes, and many of them are quick, affordable fixes.

1. Squeaking or Squealing Noise

A high-pitched squeak, especially one that happens as the drum turns, is one of the most common dryer complaints. It’s usually caused by:

• Worn drum support rollers: Many dryers use small wheels to support the drum as it spins. Over time, these rollers wear down or develop flat spots, causing a squeak with every rotation.
• A worn idler pulley: This pulley keeps tension on the drive belt. If its bearing wears out, it can produce a squeal that gets louder as the dryer runs.
• A dry or worn drum belt: As the belt ages, it can start to squeak against the drum or pulley system.

2. Loud Thumping or Banging

A rhythmic thumping sound is often more alarming than it needs to be. The most common causes include:

• A single heavy item (like a shoe, a hoodie with a hood, or a comforter) tumbling unevenly
• A broken or loose drum support roller allowing the drum to shift slightly as it spins
• Items with metal or plastic parts (zippers, buttons) hitting the drum

If the thumping continues even with a normal, balanced load, it’s more likely a worn support component than the laundry itself.

3. Rattling Noise

Rattling is often caused by something loose rather than something broken. Common sources include coins or small items caught inside the drum or in the lint trap housing, a loose front or back panel that vibrates during operation, or a foreign object that’s found its way into the blower housing. It’s worth checking pockets thoroughly and inspecting the drum before assuming a part has failed.

4. Grinding Noise

A grinding sound is one of the more serious noises to hear, and it usually points to a worn-out drum bearing or a support roller that has deteriorated significantly (often beyond just squeaking at this stage). Continuing to run a dryer with a grinding noise can cause further damage to the drum or motor, so this is one noise worth addressing sooner rather than later.

5. Buzzing or Humming

A buzzing sound is usually related to the motor or blower wheel. This can point to a failing motor bearing, a blower wheel that has come loose or is hitting its housing, or in some cases, a motor that’s struggling to start properly. If the buzzing is accompanied by the dryer not tumbling at all, it likely points to a motor issue.

Is Some Noise Normal?

Yes — a certain amount of low mechanical hum, air movement, and the sound of clothes tumbling is completely normal for any dryer. What’s worth paying attention to is a new noise, a noise that’s gotten noticeably louder, or a rhythmic sound that repeats with every drum rotation. These patterns almost always point to a specific mechanical cause rather than normal wear.

Quick Checks Before Calling a Technician

1. Stop the dryer and check pockets and the drum for coins, buttons, or small items
2. Run the dryer empty for a minute to see if the noise persists without a load
3. Check that the dryer is sitting level and isn’t wobbling on uneven flooring
4. Listen for whether the noise happens constantly or only during specific parts of the cycle (start, tumble, or stop)

Is It Worth Repairing?

Most noise-related dryer repairs — drum rollers, idler pulleys, and belts — are relatively inexpensive and quick to replace compared to the cost of a new dryer. Bearing or motor issues are a bit more involved, but still typically far cheaper than replacement unless the dryer is very old. Catching these noises early often prevents a small, affordable repair from turning into a bigger one (a worn roller left unaddressed can eventually damage the drum itself).

Get an Accurate Diagnosis, Nationwide

A dryer making an unusual noise can be hard to diagnose over the phone, since several different parts can produce similar sounds. Our technicians provide on-site dryer repair service across the USA, identifying the exact cause of the noise at your home and giving you a clear, upfront quote before any work begins. If your dryer runs but isn’t heating, see our guide on dryer not heating: causes and fixes.