Why Is My Dishwasher Making a Buzzing Noise?

Call Now

Dishwashers are essential in any modern household, making it easy to clean up after meals with little effort. But when you start hearing a buzzing noise during its cycle, it’s hard not to be concerned. As a business owner with over 38 years of experience repairing appliances like dishwashers, I understand how frustrating it can be when something goes wrong with your trusted kitchen companion.

A dishwasher making unusual sounds often indicates that something is off. While it may not be a cause for immediate panic, it’s important to identify the reason behind the buzzing to prevent more serious issues down the line. In this article, we’ll explore the common causes of buzzing in dishwashers and what you can do about it.

Common Causes of a Buzzing Dishwasher

1. Blocked Water Inlet Valve

One of the most common reasons a dishwasher makes a buzzing noise is due to a problem with the water inlet valve. This valve controls the flow of water into your dishwasher. If the valve gets clogged or blocked, it can restrict the water flow, causing the buzzing sound.

How to Fix It:

Inspect the water inlet valve for any blockages. If it’s clogged, cleaning it could solve the problem. However, if the valve is damaged, it may need to be replaced. It’s best to leave this job to a professional, as the valve is a crucial component in the dishwasher’s operation.

2. Motor Issues

The dishwasher’s motor is responsible for driving the pump, which circulates water throughout the cleaning process. If the motor is starting to fail, it may create a buzzing or humming noise. Over time, motors can wear out, especially if the appliance is older or used frequently.

How to Fix It:

If you suspect the motor is causing the noise, you’ll need to have it checked by an experienced technician. Motor replacements require specific skills, and attempting to fix it yourself could lead to further damage.

3. Faulty Drain Pump

The drain pump in a dishwasher is essential for removing dirty water during and after the wash cycle. If the pump becomes faulty or clogged, it can cause the dishwasher to make a buzzing noise while trying to drain the water. This issue often occurs if debris, like food particles, is stuck in the pump.

How to Fix It:

Check the drain pump for blockages. You can attempt to clean out the debris yourself, but if the noise persists, a technician may need to replace the pump.

4. Water Pressure Problems

Dishwashers require a steady water flow to function properly. If the water pressure in your home is too low or too high, it can cause a buzzing noise during the wash cycle. Low pressure could result in the dishwasher struggling to fill with water, while high pressure may put extra stress on the water inlet valve.

How to Fix It:

Check the water pressure coming into your home. Ideally, the pressure should be between 0.3 and 0.6 MPa. If you’re unsure, a plumber can measure the pressure for you and make adjustments if necessary.

5. Loose Components

Sometimes, a buzzing noise can be traced back to loose components within the dishwasher. Screws, mounts, or other internal parts may come loose over time, especially in older dishwashers. These loose parts can vibrate during the wash cycle, creating the buzzing sound.

How to Fix It:

Open the dishwasher and inspect the components. Tightening any loose screws or parts may resolve the problem. If you’re not comfortable doing this yourself, a technician can easily handle the job.

Should You Be Worried About the Buzzing?

A buzzing dishwasher might not seem like an emergency, but ignoring the noise could lead to more significant issues down the line. For instance, if the motor or water inlet valve is failing, delaying repairs may result in your dishwasher breaking down completely, leaving you without a functional appliance when you need it most.

Regular maintenance and addressing small problems like a buzzing sound early on can extend the life of your dishwasher and save you from costly repairs or replacements.

How Appliance Repairs Centre Can Help

With over 38 years of experience, we’ve seen and fixed it all when it comes to dishwashers. Whether it’s a faulty motor, a clogged water inlet valve, or a drainage issue, our certified technicians are equipped to diagnose and repair the problem efficiently. We offer 24/7 service, ensuring that no matter when your dishwasher starts buzzing, we’re ready to help.

We provide free callouts and quotations, so you can have peace of mind knowing that you won’t be hit with unexpected charges. Our goal is to get your dishwasher back in working order as quickly as possible, saving you the hassle and expense of replacing it.

FAQ

1. Can I continue using my dishwasher if it’s making a buzzing noise?

While it might be tempting to keep using your dishwasher, continuing to run it while it’s making strange noises can lead to further damage. It’s best to address the issue as soon as possible by identifying the cause or contacting a professional to inspect it.

2. Is it expensive to repair a buzzing dishwasher?

The cost of repairing a buzzing dishwasher depends on the cause of the problem. Simple fixes, like cleaning a clogged valve, can be affordable, while more complex repairs, such as replacing the motor, may cost more. At Appliance Repairs Centre, we offer free quotations, so you’ll know exactly what to expect.

3. How can I prevent my dishwasher from making a buzzing noise in the future?

Regular maintenance is key to preventing issues with your dishwasher. Clean the filters, check the water pressure, and inspect the hoses periodically. If you notice any unusual noises or performance issues, it’s best to have them checked out by a professional before they worsen.

Conclusion: Don’t Ignore That Buzzing Noise—We’re Here to Help

If your dishwasher is making a buzzing noise, it’s a sign that something isn’t quite right. Ignoring it can lead to more significant problems, from a broken motor to a clogged valve. At Appliance Repairs Centre, we have the experience and expertise to fix the issue quickly and efficiently.

Don’t wait until your dishwasher breaks down completely—call us today for a free callout and quote. Let us take care of the problem, so you can get back to enjoying the convenience of your dishwasher without the annoying buzz.

Contact Us Today
📍 Address: 609 Van Zyl Ave, Eloffsdal, Pretoria, 0084
📞 Phone: 012 335 8610

We’re available 24/7, ready to assist you with any appliance repair needs in Pretoria, Centurion, and Midrand.