Samsung Washing Machine: loud knocking sound
What is this symptom?
Experiencing a loud knocking sound from your Samsung washing machine, particularly during the spin cycle? This could feel like the drum is thumping against the sides, even with a balanced load. Several factors may contribute to this issue, including unbalanced loads, worn tub bearings, or faulty suspension components.
Important Tips for Samsung Models
- Official documentation notes a short knocking immediately after mode changes (washing to spin) that is normal and not a defect.
Possible Causes
Unbalanced load
How to Identify: Noise occurs with uneven clothing distribution or heavy items on one side; may reduce when clothes are redistributed.
Part: Drum/load distribution
Worn or defective tub bearings / tub seal
How to Identify: Loud knocking/grinding during high-speed spin; inner drum moves excessively when manually pushed; possible water leakage near bottom.
Part: Tub bearing / seal
Faulty or worn suspension components (shock absorbers / suspension rods)
How to Identify: Excessive drum movement; loud knocking as drum hits cabinet sides; front-loaders may vibrate more.
Part: Shock absorbers / suspension rods
Drive pulley or belt issues
How to Identify: Knocking or irregular noise associated with motor-driven parts; belt slipping or pulley loose.
Part: Drive pulley / belt
Foreign objects in tub or pump
How to Identify: Rattling or knocking with items like coins or safety pins; checking tub/pump catch may reveal debris.
Part: Drum / pump
Normal operational knocking related to clutch transition
How to Identify: Short knocking/thumping immediately following mode transition (e.g., wash to spin that fades quickly.
Part: Motor clutch
DIY Solutions
Redistribute Clothing Load
- Stop the washer mid-cycle if safe to do so.
- Open the door and redistribute clothes evenly around the drum.
- Avoid overloading or washing only a few items; balance heavy and light items.
Level the Washer
- Use a level to check if the washer is sitting flat.
- Adjust the feet by turning to raise/lower each corner until level.
- Ensure firm contact with the floor.
Remove Foreign Objects from Tub/Pump
- Unplug washer and locate pump filter or access panel.
- Open panel and check for debris or objects.
- Remove any found objects carefully and reassemble.
Next step
Choose the next step for loud knocking sound
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drum Bearing Kit
Supports the spinning drum and ensures smooth, quiet rotation during cycles.
- Typical part-only price
- $40 - $95
- DIY difficulty
- Hard
- Estimated time
- 120-180 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Washer Shock Absorber
Dampens tub movement and vibration during high-speed spin cycles.
Washer Suspension Rod Kit
Supports and stabilizes the washer tub during agitation and spin.
Drive Belt
Transfers rotational power from the motor to turn the drum or tub.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Replace Tub Bearings and Seal
Replace Suspension/Shocks
Inspect and Replace Drive Pulley or Belt
When to Call a Professional
Preventive Maintenance
-
Check load balance every wash: Noise and vibration due to unbalanced loads
Frequency: Every use -
Clean pump filter periodically: Foreign object noise and pump clogs
Frequency: Monthly
Frequently Asked Questions
Why is my Samsung Washing Machine loud knocking sound?
How do I fix Samsung Washing Machine loud knocking sound myself?
How much does it cost to fix loud knocking sound?
When should I call a technician for loud knocking sound?
References & Sources
- Samsung washing machine is too noisy Official
- Samsung front loader washer, loud knocking Community
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Unbalanced load causing the drum to knock against the washer's frame
- Worn or damaged drive belt leading to misalignment
- Faulty suspension springs or shock absorbers not dampening the drum movement
User Suggested Solutions
-
Redistribute the load evenly in the drum. Ensure that heavy items are balanced with lighter ones to prevent knocking.
-
Inspect and replace the drive belt if it is worn or damaged. Disconnect the power, remove the back panel, and replace the belt as necessary.
-
Check the suspension springs and shock absorbers for wear. Replace any faulty components to restore proper drum movement.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
Community Discussions
loud knocking sound when turning
Replaced with a nearly new washing machine after the drive belt was chewed.
Source: Reddit r/appliancerepair
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