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Why Is My Dishwasher So Loud? (Quick Answers)

Cooking is a fun and essential skill to learn. But cooking comes with lots of washing too. Dishwashers took the burden to do the hard work. But when the dishwasher makes too much noise, it’s irritating and indicates something is wrong with the dishwasher. This article will discuss all the possible reasons for the loud dishwashers and how you can fix them.

Why is my dishwasher so loud?

The loud sound can usually happen when you overload the dishwasher or keep the dishes too closely.  The spray arm spins and sprays water on the plates; a faulty spray arm can cause a loud sound. A problematic drain pipe can cause a grinding sound from a dishwasher.

Dishwashers typically make some sound while operating. It should make a low sound like rainfall when it’s running. But if your dishwasher is making a rattling or grinding noise, that can indicate that your dishwasher is having some internal issues.

But don’t worry, noise in the dishwasher does not mean your whole dishwasher is going bad. Generally, one or two part of the dishwasher is faulty and you can fix the sound issue by repairing them.

Can you fix your dishwasher DIY? In most cases, if you research well, you can find out the possible issue with your dishwasher and fix that if you have the average technical knowledge and essential tools.

In this article, we will explain how you can find out the issue causing noise in your dishwasher and how you can solve them on your own. So how complicated the noisy issues can be?

That depends on what problem is causing the noise issue. Sometimes the problem gets fixed by cleaning or repairing displaced parts of the washing machine, and other times you may have to change some parts of the dishwasher. You can find all the dishwasher parts you need in the market and install them yourself.

However, sometimes the noise issue with your dishwasher can be more complicated and hard to fix DIY. In that case, you need professional help setting the dishwasher noise. We will include the fixing cost of your dishwasher in the later part of the article.

Here is the possible issue that is causing noise in a dishwasher.

When draining

The dishwasher sprays hot water to clean off the dirty dishes. When the dirty water builds inside the dishwasher, water goes out with the draining system. Here is what can cause noise issues while draining.

A broken drain pump:

The drain pump is a pump that helps to drain the dirty water from the dishwasher. The drain pump has two parts, a motor and a pump body. If any of the parts is broken, it can cause noise. If you ignore the noise, the drain pump can go wrong and stop working.

Something got inside the drain pump:

If something gets stuck inside the drain pump, it can cause noise while the draining cycles. You will need to open the pump and remove the thing that is causing the problem to fix the noise. If the drain pump is in bad condition, it’s better to change that.

When it spins

If your dishwasher makes noise when it spins, there can be issues with the circulation mortar or its parts. Check out the following point.

Circulation motor:

The circulation motor is the motor that circulates water inside the dishwasher’s chamber. It’s one of the main components of a dishwasher. If your dishwasher is old, some parts of the circulation motor can be damaged and cause noise issues.

Circulation motor bearing:

The bearing of the circulation motor can cause loud noise in your dishwasher—most of the time. The bearing helps the circulation motor to rotate. By changing the bearing, you can fix the noise issue easily.

Spray arm:

The spray arm rotates and sprays hot water on dirty dishes. A faulty or cloggy spray arm can cause noise issues.

When agitating

Some common issues cause noise while agitating the washing machine. Check out the following points.

Overloading or keeping dishes too close:

Overloading your dishwasher can cause loud noise while the dishwasher runs. The problem should be fixed when you put in the correct number of dishes.

Water inlet valve:

The water inlet valve is located in the front panel of the dishwasher. It causes a buzzing sound when there is any fault with the water inlet valve. Changing the faulty water inlet valve should fix the noise issue.

During wash cycle

Dain pump and the circulation motor issue usually cause noise during the wash cycle. You can open those dishwasher parts and look for broken pieces of displacement. What if you can’t find the issue with your dishwasher? You can check all the essential parts of the dishwasher that can cause noise one by one. Here is another couple of reasons for dishwasher noise.

Pump seal impaler kit:

The pump seal impaler kit is part of the circulation motor, and a damaged pump seal can cause dishwasher noises. It can locate inside or under the washing machine. You can buy a new one and replace the faulty one to fix the issue.

Door cable roller:

The door cable roller is that part that helps to open and close the door smoothly. It is located on both parts of the dishwasher door. Faulty cable rollers cause irritating sounds while opening and closing the dishwasher.

Do dishwashers get louder over time?

Noise is a common problem for dishwashers. Old dishwashers tend to become louder over time. When you buy a new dishwasher, all the parts or the dishwasher work perfectly and do not have any noise issues. But when it gets old, some dishwasher parts get damaged and cause noise.

Most of the time, old dishwashers make a moderate sound. But that does not indicate any curtain issue. But when the sound gets loud, that can be caused by internal problems with the dishwasher.

However, when a weird sound occurs, you need to fix that in the early stage, or you may have to spend more later.

How can I make my dishwasher quieter?

Let’s divide the noises of the dishwasher into two parts. The first type of sound happens when some part of the dishwasher gets damaged or displaced. The other kind of sound is age-related sound.

The machine makes more noise than usual when it gets old. You need to fix faulty parts to fix the first type of sound. But to get rid of age-related noise. You can follow those steps for a quieter dishwasher.

Unplug or remove the circuit of the dishwasher:

Before you start working with your dishwasher, you should remove any electrical connection with the dishwasher to avoid electrification.

Remove the door panel:

Use your screwdriver to remove the door panel of the dishwasher. Measure the door and other parts of the dishwasher and write them down.


Install a soundproofing blanket on the doors and around the dishwasher. The blanket will absorb the vibration of the machine that causes the noise.,

Soundproofing mat:

When the dishwasher is connected to the wall, it can make a lot of noise while running. Adding a mat between them can reduce the issue.

This is how you can hide the sound, but the sound is still there. Before applying this, ensure the sound is not because of any faulty dishwasher part.

How much does it cost to fix a loud dishwasher?

As you already know, numerous issues can cause a loud dishwasher. And the service cost depends on the issue that is causing the noise. But generally, it needs 100$-500$ depending on the problem.

If you have fair technical knowledge, you should be able to find out the issue by researching and fixing that by following the tutorials. But, for complicated cases, it’s better to rely on professionals. Here is how much you may need to spend to fix those dishwashers.

LG dishwasher:

You need to spend 100$ to 300$ to fix LG dishwashers by professionals.

Frigidaire dishwasher:

Depending on the issue, you may need to spend 70$ to 500$ to fix the Frigidaire dishwasher.

Kitchenaid dishwasher:

The fixing cost of a Kitchenaid dishwasher should be between 100$ and 500$.

Bosch dishwasher:

You need 150$-400$ to fix the bosch dishwasher.

Whirlpool dishwasher:

Whirlpool dishwashers also need about 150$ to 400$ for fixing.

Maytag dishwasher:

You need between 150$ and 300$ to fix Maytag dishwashers.

Final Thoughts

The leading cause of dishwasher noise is the circulation motor and drain pump. Many other reasons can cause dishwasher sound but are not very common. Overloading or an old dishwasher makes noise generally. Finding out the issue and fixing or replacing that part can help you get rid of the noise.