Samsung Dishwasher Making Noise (Troubleshooting Guide)

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Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

A Samsung dishwasher making noise often points to a loose component or a worn part. Check for loose items, ensure the dishwasher is level, and inspect the drain pump. If the noise persists, replace the faulty part.

Confirm the symptom

Loud humming or vibrating sound during operation
Clicking or rattling noise when the dishwasher runs
Noise only occurs during the wash or drain cycle
Sound is coming from the bottom of the dishwasher
Noise gets louder when the dishwasher is full

Tools and prep

Screwdriver (Phillips and flathead)
Flashlight
Plastic putty knife
Work gloves
Samsung dishwasher manual (digital or printed)
Turn off power at the circuit breaker for safety
Place a towel under the dishwasher to catch leaks

Step-by-step troubleshooting

Check for Loose Items
Do: Open the dishwasher and inspect for loose dishes, utensils, or foreign objects inside the tub.
Observe: Any loose items vibrating or moving during operation.
Means: Loose items can cause rattling or clanking noises.
Next: Remove the items and restart the dishwasher to see if the noise stops.
Level the Dishwasher
Do: Use a level tool to check if the dishwasher is sitting evenly on the floor.
Observe: Dishwasher tilts to one side or rocks when touched.
Means: An unlevel appliance can cause excessive vibration and noise.
Next: Adjust the leveling legs until the dishwasher is stable and restart it.
Inspect the Drain Pump
Do: Locate the drain pump (usually at the bottom rear of the dishwasher) and check for blockages or damage.
Observe: Debris or a worn impeller in the pump.
Means: A clogged or faulty drain pump can create loud humming or grinding noises.
Next: Clean the pump or replace it if damaged.
Check the Wash Arm
Do: Inspect the upper and lower wash arms for obstructions or damage.
Observe: Cracks, bends, or debris caught in the wash arm nozzles.
Means: A damaged or clogged wash arm can cause uneven water flow and noise.
Next: Clean the nozzles or replace the wash arm if necessary.
Test the Motor
Do: Listen closely to determine if the noise is coming from the motor area.
Observe: Loud humming or buzzing without the motor spinning.
Means: A failing motor may not engage properly and can produce loud noises.
Next: If the motor is faulty, contact a professional for replacement.
Inspect the Tub
Do: Check the inner tub for dents or damage that could cause noise during operation.
Observe: Visible dents or loose parts attached to the tub.
Means: A damaged tub can create clanking or vibrating sounds.
Next: Repair or replace the tub if necessary.

Common causes

Cause	Likelihood	Difficulty	Part often needed
Loose dishes or utensils Vibrating or moving items during the wash cycle create noise.	Common	Easy	None
Unlevel dishwasher Improper leveling causes excessive vibration and noise.	Common	Easy	None
Clogged drain pump Debris in the pump restricts water flow and causes loud noises.	Sometimes	Easy–Medium	Drain pump
Faulty wash arm A damaged or clogged wash arm disrupts water flow and causes noise.	Sometimes	Easy	Wash arm
Failing motor A motor that doesn't spin properly can produce loud humming or buzzing.	Rare	Hard	Motor assembly
Damaged inner tub Dents or loose parts in the tub create clanking or vibrating sounds.	Rare	Medium	Inner tub

Parts matching

If you need to replace a part, match these common issues with the correct replacement:

Drain pump – for clogged or noisy pump
Wash arm – for cracked or clogged nozzles
Leveling legs – for an unlevel dishwasher
Motor assembly – for a humming or non-spinning motor
Inner tub – for dents or structural damage

Always refer to your Samsung dishwasher model number when ordering replacement parts to ensure compatibility.

When to call a professional

The noise persists after checking all loose items and components
You suspect a faulty motor or electrical issue
You're uncomfortable working with electrical components
The dishwasher leaks water while making noise
The noise is accompanied by error codes on the display
The appliance vibrates excessively and moves from its position

FAQ

Why is my Samsung dishwasher making a loud humming noise?

A loud humming noise often indicates a clogged drain pump, a failing motor, or an unlevel appliance. Check these components first.

Can a Samsung dishwasher make noise if it's not level?

Yes, an unlevel dishwasher can cause excessive vibration and noise. Adjust the leveling legs to stabilize it.

What should I do if my Samsung dishwasher makes a clicking noise?

A clicking noise may be caused by a loose component or a faulty timer. Check for loose items and inspect the timer for issues.

Is it normal for a Samsung dishwasher to make some noise during operation?

Some noise is normal, especially during the wash and drain cycles. However, loud or unusual noises usually indicate a problem that needs attention.

Can I replace the drain pump myself?

Yes, replacing the drain pump is a common DIY repair. Turn off the power and water supply, and follow the manufacturer's instructions carefully.