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Dishwasher Is Making Noise

Technically Reviewed by Oleg Chudnovski on Feb 24, 2026 | Written by Spark Service PRO Editorial Contributors

A dishwasher making noise can indicate various issues within the appliance. Common noise sources include a malfunctioning pump motor, worn-out bearings, or debris lodged in the spray arm or pump assembly. Additionally, loose or damaged parts, such as the spray arm, utensil basket, or detergent dispenser, can cause disruptive sounds during dishwasher operation. Identifying the specific source of the noise is crucial to determining the appropriate troubleshooting or repair steps to restore the appliance's smooth, quiet operation.

Please read our article to learn why my dishwasher is making a loud noise and what you can do about it.

Why Is My Dishwasher Making Noise?

A dishwasher producing a loud, clattering sound while washing dishes can be very frustrating, and seeking dishwasher repair services will cost money. You may not be handy, but eventually, you will realize that fixing a dishwasher is not such a complicated process. The first step towards repairing a dishwasher is to be familiar with the commonly used parts. After you get the model number, you can bring the sink to its original state. You will find dishwasher repair is affordable and takes as little time as possible.

Here are the major causes/parts to check and correct a noisy dishwasher

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Reason 1: Defective Pump

A faulty pump is one of the reasons a dishwasher could start making a terrible sound. The work of this pump is to drain water and pressurize the spray arms. The pump is strategically located at the bottom of the dishwasher and consists of two compartments: one for draining, the other for circulation or washing. The dishwasher drain is made up of a chopper blade, a drain impeller, and, at times, a solenoid-operated diverter. The circulation elements typically consist of filter components and a wash impeller. An electric motor on the side or bottom of the pump motions the impellers.

Reason 2: Spray Arm Seal And Wash Arm Bearing Ring

Also, a noisy dishwasher could result from a bearing ring or wash arm seal being out of position. These rings are made of plastic, providing strong support for the spray arm as it rotates. It is imperative to check the ring and seal regularly; if they are not functioning correctly, replace them. This repair method is convenient as it is easy and takes a short time to repair the appliance. Video and fixing guidelines are also helpful.

Reason 3: Spray Arms

Ensure the spray arms rotate freely and do not hit the dishes or racks. If the arms are shaky, then the hub or center portion of the spray arm is most likely worn; therefore, you'll need to replace the entire spray arm immediately.

The standard parts above will make the dishwasher cluttered, resulting in loud noises during dishwashing. Despite this discovery, there may be other faulty parts that require an expert's skill. You can freely enter the model number or any additional help you deem necessary. Using your model number to search will give you access to all schematics and parts, the particular problem your dishwasher is experiencing, and the installation processes.

You can contact a more skilled professional at Spark Service PRO to take care of the noise once and for all, who has specific knowledge and experience in repairing household appliances and resolving issues with them, including a dryer making a loud noise, a washer making a grinding noise, and more.

5 More Potential Sources of Making Noise Dishwasher

Certainly, there are additional components that can contribute to a noisy dishwasher. Here are a few more potential sources of noise:

Source 1: Wash Impeller

A worn or damaged wash impeller, which circulates water during the wash cycle, can produce excessive noise. Inspect for signs of wear and replace if necessary.

Source 2: Dish Rack Rollers

Worn or damaged dish rack rollers can lead to noisy operation as the racks move in and out. Check for any visible issues with the rollers and replace them if needed.

Source 3: Water Inlet Valve

A malfunctioning water inlet valve, which controls water flow into the dishwasher, can cause a humming or buzzing noise. The inlet valve may need to be replaced if the noise is associated with water filling.

Source 4: Dishwasher Belt

Some dishwashers have a belt that connects the motor to various components. A loose or damaged belt can result in a noisy operation. Check the belt for wear and tighten or replace it as needed.

Source 5: Motor Bushings

Worn motor bushings can also contribute to noise. If the dishwasher motor makes unusual sounds, inspect the motor bushings and replace them if they show signs of wear.

Addressing these additional components can help comprehensively troubleshoot and resolve noise issues in a dishwasher. If problems persist or you're unsure about the diagnosis, seeking professional assistance is advisable for a thorough, effective solution.

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Choose Spark Service PRO for Quick and Reliable Solutions

When faced with the disruptive issue of a noisy dishwasher, Spark Service PRO stands out as the go-to choice for efficient and dependable repairs. Our dedicated technicians are committed to restoring your appliances promptly, minimizing the inconvenience caused by a malfunctioning dishwasher. With a keen understanding of the challenges associated with dishwasher repairs, we guide you through the process, ensuring you receive top-notch dishwasher repair services tailored to your needs. Here are compelling reasons to trust Spark Service PRO for your next appliance repair:

• Same-Day Service: We prioritize your convenience by offering same-day service for all major appliances, ensuring a swift resolution to your noisy dishwasher issue.
• Extensive Experience: With over 18 years of experience, our technicians bring a wealth of knowledge to every repair, guaranteeing exceptional service and expertise.
• Award-Winning Service: Spark Service PRO is a nine-time HomeStars Best of the Best Award winner from 2017 to 2026, a testament to our commitment to delivering outstanding appliance repair solutions.
•  Gas Appliance Repair Certified: As a TSSA-certified gas appliance contractor, you can trust us for safe and reliable repairs.
• Satisfaction Guarantee: Enjoy peace of mind with our 90-day satisfaction guarantee, assuring you of the quality and durability of our dishwasher repair services.
• Free House Calls: We believe in transparent and customer-friendly service, offering free house calls with any repair and ensuring you receive an accurate assessment of your dishwasher's noise issues.

Don't endure the inconvenience of a noisy dishwasher any longer. Whether you own a Whirlpool, LG, Miele, Electrolux, Samsung, Maytag, Fisher & Paykel, Bosch, Frigidaire, GE, or any other major appliance brand, Spark Service PRO is your reliable partner. Call us at 647-503-6655  for prompt, same-day dishwasher repair services in Toronto and the surrounding areas of the Greater Toronto Area.