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By: Nick

CEO Nick's Appliance Repair

Whirlpool dishwasher not washing

Table of Contents

Why is my Whirlpool dishwasher not washing dishes?

Is your Whirlpool dishwasher not washing dishes effectively? There could be several reasons, such as using an outdated appliance, dirty or obstructed filters, water or power supply problems, incorrect dish loading, or other issues.
Fortunately, most of these problems can be quickly resolved or even prevented by adhering to the usage and maintenance guidelines provided in the dishwasher’s owner manual. Keep reading to explore more about troubleshooting a dishwasher that fails to wash correctly.

Firstly, check the filters and rinse aids. If they are clogged or not filled with enough rinse aid, it can cause poor cleaning performance. Ensure that the filters are clean by rinsing them with warm water and properly filling the rinse aid using your appliance’s specifications. In addition, make sure that the detergent dispenser is working correctly, and only use high-quality detergents recommended by Whirlpool.

Next, examine if any dishes are blocking the spray arms. Any obstruction can prevent the water from being dispersed evenly, resulting in poor cleaning performance. Additionally, ensure that you are loading the dishwasher correctly. Stacking dishes too close together, placing them in the wrong compartments, or overcrowding can prevent water from missing some dishes.

Lastly, if all of these steps need to be revised, ensure there are no power or water supply issues. Ensure all hoses are correctly connected and the dishwasher is plugged into a working outlet. If everything looks in order, contact Whirlpool customer service for technical assistance.

You can get to the root of the problem by troubleshooting your dishwasher and getting your dishes back to sparkling again. Always read and follow the owner’s manual instructions to keep your appliance running at its best. Additionally, check possible issues below.

The dirty or clogged dishwasher filter

For the best washing results, it’s essential to have a clean filter. If the filter traps food particles or other debris, your dirty dishes may not need to be replaced or properly cleaned.

The solution to This Problem

Refer to your product manual for model-specific instructions to clean your dishwasher filter. Typically, you must remove and wash the filter from the bottom of the dishwasher with warm, soapy water. For any stubborn debris, use a soft-bristled brush to scrub the filter gently.

If you have tried cleaning the filter and the dishwasher is still clogged, refer to Nick’s Appliance Repair S for help troubleshooting the clogged filter issue.

Water supply issues

If your dishwasher is not cleaning dishes correctly, it could be due to issues with your water supply or water lines. Your dishes may be adequately being cleaned properly and effectively with the correct amount and water temperature.

The solution to This Problem

Ensure that the dishwasher is not cleaning, the water supply is activated, and the pump is running correctly. Before starting the dishwasher, run hot water in the nearby sink for at least 30 seconds to ensure that hot water is flowing through the pump housing the dishwasher.

Not loading dishes correctly.

Improper dish loading can make it challenging for the water spray to reach all the dishes, leading to ineffective cleaning of soils force water and detergent. Additionally, warm running water only, it can cause marks or scratches on some dishes.

The solution to This Problem

It is essential to load the dishwasher correctly to get the best cleaning results. The dirty side of the dishes should always be facing downwards and placed towards the spray arms. Leave enough space between the lower rack of dishes and lower spray arm and avoid stacking them so water can reach all the surfaces and clean them thoroughly.

Black or gray marks may appear on kitchen sink if dishes are loaded with enough water or too close together. Also, be careful not to place aluminum utensils and items near glasses and other dishes, which can also cause marks.

Detergent amount or quality

Using excess detergent can cause a buildup of residue on your dishes. Using warm water under pressure, a rinse aid can prevent streaks or cloudiness on your dishes and glassware.

The solution to This Problem

Make sure to use only automatic dishwashing detergent, as using other detergents or soaps can affect the performance of your dishwasher or cause suds to overflow. One detergent pack or tablet should be enough per wash cycle for regular loads.

In case of using powder detergent, start with one tablespoon per load and add more if needed. Remember that a powder detergent dispenser can lose its effectiveness over time or if exposed to air, cause it to clump and not dissolve properly.

It’s essential to store it in a cool and dry place and replace the hot water temperature part in it when necessary.

To keep cold water lines and prevent streaky or cloudy dishes and glassware, use a rinse aid that can minimize the buildup of hard water mineral deposits and ensure optimal washing and drying performance.

Dirty dishwasher interior

Over time, the accumulation of soil, detergent, water hardness and minerals inside your dishwasher can result in less-than-sparkling dishes.

The solution to This Problem

At least once a month, use a vinegar rinse cycle to clean and deodorize the dishwasher interior. Fill either the detergent cup or a measuring cup with white vinegar and place it in the top rack of your dishwasher. Then run a full cycle on the hottest water setting.

The vinegar rinse will help remove deposits, break down detergent buildup, and eliminate odors. After the cycle is complete, use a damp cloth or paper towels to wipe down and clean any remaining residue inside the dishwasher.

Cleaning your dishwasher regularly will keep it in top shape and prevent dirt and grease from building up on dishes. Taking the time to check for the most common dishwasher issues, such as water supply, loading properly, and detergent amount, can ensure that your dishes are adequately cleaned and efficiently.

Finally, using a rinse aid with each cycle can help prevent spots or marks on glasses and other items in your dishwasher. This will leave you with sparkling clean dishes every time. With a few simple steps and regular maintenance, you can extend the life of your dishwasher and have it running like new for many years to come.


Where can I find new parts for my Whirlpool dishwasher?

If you own a Whirlpool dishwasher, you can easily find the right parts and accessories to maintain its optimal performance by visiting the Whirlpool brand’s website.

How can I schedule a repair service for my Whirlpool dishwasher?

If you have attempted these problem-solving techniques and your dishwasher is still not cleaning correctly, it may be necessary to seek assistance from a professional technician. Please visit Nick’s Appliance Repair Service Customer Care to arrange a service appointment.

How can you diagnose and fix a faulty water inlet valve?

To diagnose a faulty water inlet valve, check for low water pressure or no water entering the dishwasher. To fix it, replace the whole water supply nozzle shutoff valve first. It’s also recommended to check the circulation pump for clogs or issues, as a faulty pump can cause similar problems.

What is a spray arm in a dishwasher, and how does it work?

A spray arm in a dishwasher or wash arm is a rotating device that sprays water onto the dishes to clean them. It is usually located at the bottom or top of the dishwasher and is connected to the circulation pump and motor assembly.

The spray arm works by spraying hot and cold water and detergent onto the dishes to remove food particles and stains.

Loading dishes properly ensure the spray arm can reach all surfaces. Containers should be loaded so that the soiled side faces down and inward towards the spray arm, with enough space to wash arms between items to avoid blocking the bottom spray arm well.

What should you do if your Whirlpool dishwasher fills with water but doesn’t start washing?

If your Whirlpool dishwasher fills with water but doesn’t start washing, you should first check whether the dishwasher door is closed correctly. A dishwasher will only start if the door is entirely closed and latched. Ensure the door is securely closed, and then try starting the dishwasher again.

Why is my dishwasher not going through the wash cycle?

A malfunctioning water inlet valve often causes this. This valve regulates the amount of water entering your dishwasher, and if it is faulty, it can prevent your dishwasher from going through its normal cycle.

Check to ensure that your machine’s water supply is turned on, as this can also cause issues if the water supply is not connected properly. If the water supply is on and functioning, replacing your water inlet valve may be time. You can check the manufacturer’s manual for instructions on how to do this or contact a professional appliance repair technician.

Additionally, inspect the fill line that supplies water to the dishwasher to ensure it is properly connected and that no debris has gotten inside. If it appears to be clogged, clean the line out with a brush or similar object.

Finally, check the detergent dispenser to ensure it is properly loaded with dishwasher detergent and is not clogged or blocked. Once you have checked all of these items, your dishwasher should be able to go through its wash cycle normally. If the issue persists, it may be time to contact Nick’s appliance repair technician for further assistance.

What is the most common problem with a Whirlpool dishwasher?

Whirlpool dishwashers are notorious for the frequent malfunction of their drain pump. This component is crucial for removing water and debris after a wash, so if it fails your appliance may not conclude its cycle effectively.

Clogged drain hoses can be a major hindrance to the proper functioning of your dishwasher and block it from draining water effectively. If you suspect that either is causing problems, do not hesitate to get professional help for diagnosis and repair. A qualified appliance repair technician will be able to quickly identify the cause of the issue and provide an appropriate solution with confidence.

How do you fix a dishwasher that won’t wash?

If your dishwasher is not washing properly, several potential causes should be investigated. The first step is ensuring the water supply and inlet valve function correctly. If the inlet valve is not working, it can restrict the water entering your dishwasher, preventing it from going through its normal cycle.

Additionally, inspect the detergent dispenser to ensure it is properly loaded with dishwasher detergent and is not clogged or blocked.

Why is my Whirlpool dishwasher humming but not washing?

It is likely an issue with the motor or pump. The motor is responsible for spinning the impeller, which helps to circulate water throughout your dishwasher during its various cycles. If the motor malfunctions, it will produce a humming noise but not rotate properly.

It could also be that the drain pump is clogged or blocked, preventing it from draining water correctly.