How to Determine If Your Dishwasher Circulation Pump is Faulty

To tell if a dishwasher circulation pump is bad, check for reduction in cleaning performance and unusual sounds during operation. A decrease in water pressure and lack of water circulation are also symptoms to look out for.

The circulation pump is the heart of a dishwasher’s cleaning operation. It pumps water to the spray arm, which then sprays the dishes with hot water and detergent to remove dirt and grime. The circulation pump is a vital component of the dishwasher, and when it becomes faulty, it can negatively impact the performance of the appliance. This article will outline some causes of a bad circulation pump and how to diagnose it quickly.

How to Determine If Your Dishwasher Circulation Pump is Faulty


Understanding The Function Of Dishwasher Circulation Pump

The dishwasher circulation pump plays an important role in the operation of a dishwasher. This pump circulates water to clean dishes effectively. Without the pump, the dishwasher would not function, and dishes would not come out clean. It works on the principle of suction and pressure to move water around the dishwasher during the wash cycle.

It is essential to ensure that the pump is not dysfunctional, which can lead to leakage and other problems. To understand if the circulation pump is bad, look for signs like a noisy pump, low water pressure, and leaking water around the dishwasher.

Checking the working methodology of the dishwasher circulation pump regularly can prevent serious problems. Always keep an eye on the pump, and replace it immediately if necessary to avoid a costly repair.

Common Signs Of A Damaged Dishwasher Circulation Pump

A dishwasher circulation pump plays an important role in cleaning dishes. Therefore, it is essential to identify any sign that indicates a damaged pump. If you notice that your dishwasher is not cleaning your dishes properly, it could be a sign of a damaged pump.

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Another sign is that your dishwasher will make strange noises and vibrations during its operation. Slow performance and incomplete wash cycles are also a common indication of a bad pump. If you observe a lack of water pressure during dishwashing, it could be due to a faulty circulation pump.

If you experience any of these signs, it’s best to get your dishwasher checked for a damaged circulation pump.

Dishwasher Circulation Pump Continuity Testing

Diy Inspection Of Dishwasher Circulation Pump

Inspecting your dishwasher circulation pump is an easy task that can save you money. First, gather your tools, including a multimeter, ohmmeter, and a screwdriver. To begin, unplug your dishwasher and remove the kick plate. Locate the circulation pump and use the screwdriver to remove it.

Check the impeller for any visible damage or blockage. Then, test the pump with the multimeter and ohmmeter to check for continuity. If you’re not getting a reading, the pump may need replacing. For a more thorough check, remove the pump motor and inspect the bearings for signs of wear and tear.

By following these simple steps, you can easily determine if your dishwasher circulation pump is bad and needs to be replaced.

How To Fix A Malfunctioning Dishwasher Circulation Pump

The circulation pump in your dishwasher plays a critical role in its functionality. If it’s malfunctioning, you’ll notice your dishes aren’t coming out clean. Replacing the entire circulation pump assembly is one solution. Alternatively, you can repair the damaged parts, such as seals, bearings, or impellers, but this can sometimes be challenging.

Unless you’re an experienced diyer or repair technician, it may be best to seek professional help for safe and effective replacement and repair. Keeping an eye out for symptoms, such as strange noises or reduced water pressure, will help recognize a malfunctioning circulation pump early on, enabling you to get it fixed before it starts to impact your dishwasher’s cleaning ability.

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Tips For Maintaining Dishwasher Circulation Pump

Regular cleaning and maintenance of dishwasher components is important to ensure the smooth functioning of the dishwasher’s circulation pump. By doing so, you can identify any potential issues in the dishwasher at an early stage and resolve them before they escalate.

Overloading and overusing the dishwasher can cause stress on the circulation pump and lead to its failure. Proper usage of the dishwasher including loading it with the correct amount of dishes and using appropriate detergents can also prevent the circulation pump from getting damaged.

Follow these tips to maintain your dishwasher’s circulation pump and increase its longevity.


To sum up, a dishwasher circulation pump is an essential component that helps to ensure a proper cleaning cycle. A faulty pump can cause various issues, such as unclean dishes, leaking water, strange noises, and an incomplete cleaning phase. Therefore, it’s crucial to keep an eye on your dishwasher’s performance and regularly check for signs of pump malfunction.

If you notice anything unusual, it’s recommended to call a professional technician to diagnose and fix the issue before it gets worse. By following the steps outlined above, you can ensure that your dishwasher’s circulation pump is running correctly and extend its lifespan.

With proper care and maintenance, your dishwasher can continue to provide you with clean and sparkling dishes for years to come.