Whirlpool Washing Machine: loud knocking noise

Professional Repair Guide

What is this symptom?

Experiencing a loud knocking noise from your Whirlpool washing machine during agitation or the spin cycle? This disruptive sound may indicate an unbalanced load, a washer that is not level, or potential issues with internal components. Addressing these concerns can restore your machine's quiet operation and efficiency.

Urgency: Medium

Important Tips for Whirlpool Models

Official Whirlpool guidance highlights unbalanced loads, leveling, and hoses knocking against cabinet as key causes of knocking/thumping noises
Community repair sources note loose inner baskets, tub bearings, and suspension issues specific to Whirlpool spin cycle bangs

Possible Causes

Unbalanced or uneven laundry load

How to Identify: Loud knocking noise correlates with spin cycle; load contains heavy items concentrated on one side

Part: Drum and load distribution

Washer not level on floor

How to Identify: Excessive vibration and movement during spin, noise stops or reduces after leveling

Part: Leveling feet and washer base

Loose or unsecured hoses banging against cabinet

How to Identify: Knocking noise but no abnormal drum movement; hoses visibly loose against washer cabinet interior

Part: Water inlet and drain hoses

Worn or damaged suspension components (rods/shocks)

How to Identify: Persistent knocking even with balanced load and level machine; excessive drum movement when manually pushed

Part: Suspension rods or shock absorbers

Worn tub bearings or loose internal drum

How to Identify: Grinding or rumbling in addition to knocking; noise changes with spin speed; drum feels loose when moved by hand

Part: Tub bearings/inner drum assembly

Motor coupling or drive belt issues

How to Identify: Knocking or thumping correlated with drive engagement and speed changes

Part: Motor coupling or drive belt

DIY Solutions

Redistribute laundry load

Easy 5-10 minutes

Pause the cycle and open the washer lid/door
Evenly spread clothes around the drum, avoiding clustering heavy items
Restart the wash or spin cycle

⚠️ Safety First: Ensure machine is paused before opening

Level the washing machine

Moderate 15-30 minutes

Tools Needed: spirit level, wrench for adjusting feet

Place spirit level atop the washer to check current level
Adjust the feet by turning them until the washer is level side-to-side and front-to-back
Tighten locking nuts on feet and recheck level

⚠️ Safety First: Unplug before tilting or adjusting

Secure hoses to prevent cabinet contact

Easy 10 minutes

Tools Needed: zip ties or hose clips

Inspect back of washer for loosely hanging hoses
Use zip ties to secure hoses away from cabinet
Run a short cycle to verify noise reduction

⚠️ Safety First: Ensure hoses not kinked

Professional Repairs

Replace suspension rods or shock absorbers

Estimated Cost: $80 - $200

Replace tub bearings or inner drum assembly

Estimated Cost: $200 - $500

Inspect and repair motor coupling or belt

Estimated Cost: $100 - $250

When to Call a Professional

Knocking noise persists after balancing load and leveling

Noise accompanied by grinding, rumbling, or visible drum movement

Drum feels loose when moved manually

Unusual vibrations or noises occur regardless of load distribution

Preventive Maintenance

Balance loads properly: Unbalanced drum movement and knocking noise
Frequency: every wash
Check and adjust washer level: Drum imbalance and excessive vibration
Frequency: monthly or when relocated
Inspect hoses periodically: Hoses rattling against cabinet
Frequency: quarterly

Frequently Asked Questions

Why is my Whirlpool Washing Machine loud knocking noise?

Common causes include an unbalanced load, an uneven washer, or loose hoses.

How do I fix Whirlpool Washing Machine loud knocking noise myself?

Redistribute the laundry, level the machine, or secure hoses to eliminate noise.

How much does it cost to fix loud knocking noise?

Professional repairs can range from $80 for suspension parts to $500 for tub bearings.

When should I call a technician for loud knocking noise?

If DIY fixes don't resolve the issue or if you suspect serious internal damage.

References & Sources

Whirlpool Knocking or Thumping Noise Troubleshooting Official
Whirlpool washing machine loud banging on spin cycle explained Repair-Blog

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

75%

DIY Success Rate Difficulty: Either

Common Issues Reported by Users

Unbalanced load in the drum
Worn or damaged suspension springs
Foreign object trapped in the drum or pump

User Suggested Solutions

Redistribute the load evenly in the drum. Open the lid, rearrange the clothes to balance the load, and run a short cycle to test.
Inspect and replace worn or damaged suspension springs. Unplug the machine, remove the front panel, and check the springs for wear. Replace if necessary.
Check for foreign objects. Inspect the drum and pump for any items like coins or small clothing pieces. Remove any found objects.