Washing Machine Noises: A Guide to Diagnosing Thumping, Grinding, and Squealing Sounds

A washing machine should make steady, predictable sounds—not loud thumps, grinding metal, or high‑pitched squeals. When unusual noises appear, they’re often early warning signs of mechanical issues that can worsen if ignored.

This guide explains what each type of noise means, the most likely causes, and how to diagnose and fix the problem yourself before calling a technician.

Quick-Reference Diagnostic Chart

Why Washing Machines Make Unusual Noises

A key distinction to make immediately: is your washer belt-driven or direct-drive?

• Belt-driven models (many older top-loaders, some compact front-loaders) use a rubber belt to turn the drum. This belt is a common source of squealing and slipping sounds.
• Direct-drive models (most modern front-loaders and many HE top-loaders) have the motor attached directly to the drum with no belt. If you have a direct-drive washer, you can instantly rule out belt noise—which means grinding or squealing is far more likely to be a bearing or motor issue.

If you’re unsure which type you have, a quick search of your model number will tell you.

Most other washer noises come from one of four areas:

• Drum movement (unbalanced loads, bearings, shocks)
• Drive system (belt, motor, pulleys)
• Pump system (coins, debris, clogged filter)
• Internal components (suspension rods, springs, mounts)

Identifying the type of noise and when it happens is the fastest way to diagnose the issue.

1. Thumping or Banging Sounds

Thumping is one of the most common washer noises, especially during the spin cycle. If it’s rhythmic and matches the drum rotation, it’s almost always an unbalanced load. If it’s a single loud bang per cycle, suspect suspension.

Common causes

• Unbalanced load (most common)
• Heavy items clumped on one side
• Worn shock absorbers (front-load)
• Broken suspension rods (top-load)
• Washer not level
• Loose concrete or metal counterweights

How to fix it

1. Pause the cycle.
2. Redistribute clothes evenly around the drum.
3. Remove heavy items and wash them separately or balance them with a few towels.
4. Check if the washer is level—adjust feet and lock nuts if needed.
5. Inspect shocks (front-load) or suspension rods (top-load) for visible wear, leakage, or detachment.

If the thumping happens even with an empty drum, the suspension system is failing.

2. Grinding or Metal-on-Metal Sounds

Grinding noises should be taken seriously—they often indicate mechanical wear that will only get worse.

Important: A common test for bearing failure is spinning the drum by hand. But a failing bearing may only produce the telltale “roaring” sound when the drum is spinning at full speed with weight inside. If you don’t hear a grind by hand, don’t rule out bearings yet—listen carefully during the high-speed spin phase.

Common causes

• Worn drum bearings
• Damaged drum spider arm (the metal bracket connecting the drum to the motor)
• Foreign objects trapped between the drum and outer tub
• Worn drive pulley
• Loose or failing motor coupling (top-load)

How to fix it

• Spin the drum firmly by hand and listen for roughness.
• Check for coins, underwire, or debris trapped in the drum gap.
• Inspect the pulley and belt for wobbling or wear.
• For bearing or spider arm issues, professional repair is recommended—this is a major job.

Grinding is one of the few noises that can lead to catastrophic damage if ignored. A failed spider arm can allow the drum to detach.

3. Squealing or High-Pitched Screeching

Squealing usually indicates friction or a slipping component. If your washer is direct-drive, a squeal is more likely a motor issue than a belt issue.

Common causes

• Worn or loose drive belt (belt-driven models only)
• Failing idler pulley
• Dry or failing drum bearings (early stage)
• Motor bearing running dry
• Water dripping onto the belt from a nearby leak

How to fix it

• Inspect the belt for cracks, fraying, or a shiny “glazed” appearance.
• Tighten or replace the belt if loose.
• Check idler pulleys for wobble or rough spinning by hand.
• Fix any water leaks dripping onto the belt area.

If the squealing happens only during startup and then fades, the belt is slipping and should be replaced.

4. Clicking or Rattling Sounds

Clicking is usually caused by small objects trapped inside the drum, gasket, or pump. The timing tells you where to look.

Common causes

• Coins, buttons, zippers, hairpins, or bra underwire
• Loose drum fins (the plastic baffles on the drum wall)
• Objects caught in the door gasket folds

How to fix it

• During wash: Check the drum and gasket folds. Run your hand around the entire gasket to feel for objects beneath the rubber.
• During drain: The drain pump filter is the culprit. Open the access panel, drain the water, and remove the filter. Clear all debris and check the pump impeller for obstructions.

5. Humming or Buzzing Sounds

A low, steady hum is normal—the motor is running. A loud or strained hum indicates a blockage or component failure.

Common causes

• Clogged or jammed drain pump
• Jammed pump impeller
• Faulty water inlet valve
• Motor capacitor failure (motor hums but won’t start spinning)

How to fix it

• Clean the drain pump filter thoroughly.
• Check the drain hose for clogs or kinks.
• Inspect the inlet valve screens for debris (humming during fill).
• Ensure the drum spins freely by hand when empty.

If the motor hums loudly but the drum doesn’t turn, the motor capacitor may have failed.

6. Knocking or Clunking Sounds

Knocking often indicates something heavy and solid has come loose inside the machine. This is more common after moving a washer.

Common causes

• Loose concrete or cast-iron counterweight (bolted to the front of the drum on front-loaders)
• Broken shock absorber
• Loose motor mount
• Worn suspension rods

How to fix it

• Unplug the washer and remove the top and back panels.
• Visually inspect all counterweights—check for loose or snapped bolts.
• Check shocks and rods for detachment or breakage.
• Tighten any loose mounting bolts you find.

If the knocking gets louder over time, stop using the washer until it’s inspected to avoid further damage.

7. Sloshing or Water Sounds When the Washer Is Off

This one is normal for most washers. Many machines have a balance ring—a hollow ring filled with a saltwater solution that helps stabilize the drum during spin.

Normal sloshing: A quiet water sound when you turn the drum slowly by hand. Not normal: Water sloshing when the machine is completely stationary and hasn’t been touched, or water clearly sitting in the bottom of the drum after a completed cycle.

If water remains in the drum, clean the drain pump filter immediately.

8. Loud Vibration or “Walking” Washer

If your washer shakes violently or moves across the floor, the issue is usually installation-related.

Common causes

• Washer not level
• Weak or flexible flooring
• Missing or worn shock absorbers
• Shipping bolts not removed (new front-load washers)
• Loose lock nuts on leveling feet

How to fix it

• Level all four feet with a spirit level.
• Tighten lock nuts against the machine body.
• Check shocks or rods for failure.
• Confirm shipping bolts are removed. Look for large, brightly colored bolts at the back of a new machine.

How to Diagnose Washer Noises Step-by-Step

1. Identify when the noise happens

   • During fill
   • During wash/agitation
   • During drain
   • During spin
   • At startup or shutdown

2. Match the type of noise

   • Thump, grind, squeal, click, hum, knock, or rattle

3. Check the most likely components
   Use the chart at the top of this guide as a reference.

4. Inspect accessible parts

   • Pump filter
   • Drum
   • Belt (if applicable)
   • Pulleys
   • Counterweights
   • Gasket folds

5. Run a diagnostic mode
   Many brands have a service test cycle that isolates the motor, pump, and spin functions.

When to Call a Professional

Call a technician if:

• Grinding gets louder over time
• The drum feels loose, wobbly, or has excessive play when pushed up and down
• You smell burning or electrical odors
• The washer leaks internally
• Bearings or spider arm are confirmed to fail
• You are not comfortable removing internal panels

These repairs require specialized tools and experience.

FAQs: Washing Machine Noises

Why does my washer make noise only during spin?

Most likely an unbalanced load. If it persists with an empty drum, suspect worn shock absorbers, suspension rods, or loose counterweights.

Why does my washer squeal at startup?

On a belt-driven model, the drive belt is slipping or glazed. On a direct-drive model, it may be a failing motor bearing.

Why is my washer making a grinding noise?

Usually worn drum bearings, a damaged spider arm, or a foreign object trapped between the drum and tub. Investigate immediately.

Why does my washer thump with heavy loads?

Bulky items like comforters or large towels clump together. Rebalance the load manually or add a few dry towels to distribute weight.

Final Thoughts

Washer noises are more than just annoying—they’re clues. Understanding what each sound means, and precisely when it happens, helps you diagnose issues early, prevent costly repairs, and keep your machine running smoothly.

Whether you’re hearing thumping, grinding, squealing, or humming, this guide gives you the tools to identify the cause and take action.

For deeper troubleshooting, explore HelperHusky’s guides on common washer problems, deep cleaning, and proper washer use to keep your machine performing like new.