Dryer Making Metal Noise: Causes & Fixes

Quick Answer

A true metal noise in a dryer usually means metal-to-metal contact from a worn drum support (rollers, rear bearing, or glides) or a loose/broken blower wheel rubbing the housing. Stop the cycle, disconnect power, and do a slow hand-rotation test of the drum. If you feel scraping, binding, or hear a steady rub, do not keep running it until you locate the contact point.

Identify the Noise First

Use this quick guide to match your situation. Metal-to-metal sounds are typically sharp scraping, grinding, ringing, or a rhythmic clank that repeats with drum rotation.

During drum rotation: Steady scrape or rhythmic metal tick once per revolution points to drum supports, drum seam rubbing, or an internal object contacting the drum.
At startup: A brief metal clank followed by normal operation often points to a loose blower wheel or a drum that sags until it centers. A loud grind immediately at startup often indicates a seized roller or failing rear bearing.
During heating: Metal scraping that becomes worse as the dryer warms can indicate slight warping/expansion causing contact, commonly with a weak rear support/bearing or a drum shifted by worn rollers.
During cooling cycle: If the sound reduces during cool-down, suspect heat-related expansion, but still treat it as contact that will worsen over time.
Constant: Continuous metal rub is most often a blower wheel rubbing, a drum riding on the cabinet due to failed supports, or a foreign object stuck where it can’t move.
Intermittent: Random metallic clinks often come from a coin, bra wire, zipper pull, or screw trapped in the drum baffle, lint filter chute, or between the drum and front bulkhead.

What This Noise Usually Means

Dryers are designed so moving parts ride on low-friction supports: rollers, glides, or a bearing. A metal noise usually means a wear surface is gone and a steel part is now touching another steel part. That contact can chew grooves into the drum, bulkhead, or blower housing and often creates fine metallic dust. The key diagnostic goal is to locate where the contact happens: at the drum supports, at the front opening, or at the blower wheel area.

Most Common Causes

Worn drum rollers or roller shafts: Flat-spotted rollers, seized rollers, or worn shafts make a grinding or rhythmic metallic rumble that tracks drum speed.
Failed rear drum bearing (common on bearing-style designs): Produces a harsh scrape or grind, often worse under load and sometimes louder as the unit heats.
Worn front drum glides/slides: When the glide material is gone, the drum edge can rub metal at the front bulkhead, creating a steady scrape near the door.
Loose or cracked blower wheel rubbing the housing: Usually a fast, tinny scraping or rattling that may change with airflow load; can be constant even with an empty drum.
Foreign object causing metal contact: Coins, screws, bra underwires, or zipper pulls can lodge between the drum and bulkhead or in the lint duct and create intermittent metal clinks or scraping.
Loose drum baffle or internal fastener: A baffle screw backing out can strike the drum or bulkhead once per revolution.
Idler pulley failure: Most often squeals, but if the pulley wobbles or the bracket contacts metal, it can create a metallic chirp or scrape tied to belt movement.

How to Check Safely

These checks focus on locating metal-to-metal contact without turning a small wear issue into drum or housing damage.

Disconnect power: Unplug electric dryers. For gas models, unplug and close the gas shutoff valve if you plan to open panels.
Do a hand-rotation test: Open the door and rotate the drum slowly by hand. Listen and feel for scraping, tight spots, or a repeating tick. Note whether the noise is louder near the front (door area) or seems deeper inside.
Check the drum edge at the front: With a flashlight, look at the drum rim and the front bulkhead area. Signs of metal contact include shiny worn spots, gray metallic dust, or a groove.
Inspect for foreign objects: Look along the drum openings, baffles, and around the lint filter entry. Run your hand carefully along the drum perforations and baffle edges for a protruding screw or sharp object.
Check for drum sag: Lift the drum gently from the door opening. Excess up/down play can indicate worn rollers, glides, or a rear bearing problem.
Listen location with a brief powered test: If the hand test is inconclusive, run the dryer empty for 10–15 seconds while listening from different points: near the door, at the back, and near the lower front/rear where the blower sits. Stop immediately if you hear a continuous scrape or hard grind.
Blower wheel suspicion check: If the sound seems faster than drum speed and louder near the lower panel area, the blower wheel is a prime suspect. Do not keep running it; a loose wheel can damage the housing and reduce airflow.

If your model allows easy access, remove the lint filter and look down the chute for a screw or coin, but avoid disassembling gas burners or electrical components unless you’re experienced.

When This Is Normal vs A Problem

Usually normal:

A brief light metallic tick right after loading, caused by buckles or zippers tapping the drum, that stops when items settle
Occasional zipper or snap contact that is clearly coming from the load and changes when you pause and rearrange clothes

A problem:

Any continuous metal scraping while the drum turns
A grinding that you can feel as resistance when turning the drum by hand
A rhythmic metal tick that matches drum rotation with an empty drum
Metal dust, shiny rub marks, or grooves visible on the drum rim or bulkhead
Noise accompanied by a burning smell, poor drying, or the drum not turning smoothly

When to Call a Technician

You hear a hard grind or the drum binds: This often means a roller or bearing is failing and continued use can damage the drum or support brackets.
Suspected blower wheel rub and you cannot access it easily: Incorrect reassembly can create airflow leaks or introduce vibration.
Gas dryer disassembly is required: If access involves removing the burner assembly area or gas-related components, schedule service.
Metal-to-metal contact marks are visible: If you already see grooving or sharp burrs, the repair may involve multiple parts (supports plus drum/bulkhead work).
Repeated failures: If rollers or glides were replaced recently and the noise returned, alignment or a bent support bracket may be involved.

How to Prevent This Problem

Empty pockets and secure loose items: Coins and screws are the fastest way to create metal contact inside the drum or duct.
Do not overload: Heavy loads accelerate roller, glide, and bearing wear and can pull the drum off-center.
Clean the lint system regularly: Restricted airflow increases heat and can worsen heat-related rubbing and blower wheel stress.
Address new noises early: Replacing glides or rollers early is cheaper than replacing a drum damaged by metal-on-metal rubbing.
Check after service work: After moving the dryer or replacing a belt, confirm the drum rotates smoothly by hand before running a full cycle.

Conclusion

A metal noise is best treated as a metal-to-metal contact warning: something that should be separated by a roller, glide, bearing, or clearance is touching. Confirm with a slow hand-rotation test, then look for rub marks and locate whether the sound is at the front (glides/bulkhead), rear (bearing/rollers), or lower cabinet (blower wheel). If the noise is continuous or the drum binds, stop using the dryer and plan a repair.

Frequently Asked Questions

Why does my dryer make a metal scraping sound only when the drum is turning?

That pattern usually indicates the drum is contacting a fixed metal surface once supports wear out. Check front glides and rear rollers/bearing by rotating the drum by hand and inspecting for shiny rub marks at the drum rim and front bulkhead.

Can a coin or bra wire really cause a loud metal noise?

Yes. Small metal items can lodge between the drum and bulkhead and make a sharp scrape or tick that matches drum rotation. If the noise becomes constant with an empty drum, the object may be stuck rather than tumbling with the load.

How do I tell drum-support noise from a blower wheel rubbing?

Drum-support contact tracks drum speed and is often loudest at the door opening or rear panel. Blower wheel rubbing tends to sound faster than drum speed and is loudest near the lower front or rear where the blower housing sits; it can also coincide with reduced airflow or longer dry times.

Is it safe to keep using the dryer if the metal noise is occasional?

If it only happens with certain clothing and stops when you remove items with zippers or hardware, it is usually fine. If it happens with an empty drum, becomes more frequent, or you see metal dust or rub marks, stop using it until the contact point is found.

What parts are most commonly replaced to fix metal-on-metal dryer noise?

Typical fixes are drum rollers and shafts, front glides/slides, or a rear drum bearing depending on the design. If the sound is from the lower cabinet area, a loose blower wheel or damaged blower housing may be the repair.

There’s a strange relief in reaching the point where the argument finally stops chasing its own tail. The noise fades, and what remains feels less dramatic than it sounded.

Not every day changes, but the corners stop snagging. It’s the quiet kind of progress—one that doesn’t ask for applause, just for a little room to breathe.