Whirlpool Dishwasher Pump Test Guide

If your Whirlpool dishwasher is not cleaning dishes properly, the circulation pump may be the issue. However, it’s important to rule out other factors such as using too much detergent, water pressure problems, low water temperature, or a defective inlet valve. To determine if the circulation pump is the problem, you can perform a Whirlpool dishwasher circulation pump test. This guide will provide step-by-step instructions on how to test the pump and diagnose any issues.

Key Takeaways:

• A Whirlpool dishwasher circulation pump test can help diagnose pump-related issues.
• Before testing the pump, rule out other factors like detergent usage and water pressure.
• Ensure you have the necessary tools like a screwdriver, pliers, and a multimeter.
• Follow the step-by-step instructions to perform the Whirlpool dishwasher pump test accurately.
• Signs of a faulty circulation pump include water not filling, wash arm not spinning, and a non-functional wash motor.

Tools Required for Pump Test

Before performing the Whirlpool dishwasher pump test, it’s essential to have the right tools on hand. Here are the tools you’ll need:

• Screwdriver: A screwdriver will be needed to remove the dishwasher’s base plate. This will allow access to the pump for testing.
• Pliers: You’ll need a pair of pliers to disconnect the hoses connected to the pump. This step is necessary to remove the pump for testing.
• Multimeter: A multimeter is an essential tool for measuring the resistance on the pump’s terminals. This reading will help determine if the pump is functioning properly or not.

Having these tools ready will ensure a smooth testing process and make it easier to diagnose any issues with the pump.

In addition to the above tools, it’s always a good idea to have a clean work surface and a well-lit area to perform the testing. Safety precautions, such as wearing gloves and disconnecting power, should also be followed.

Steps to Perform Whirlpool Dishwasher Pump Test

To determine if your Whirlpool dishwasher’s pump is functioning properly, you can follow these step-by-step instructions for a pump test:

1. Disconnect Power: Before you begin any work, make sure to disconnect the power supply to the dishwasher to avoid any electrical accidents.
2. Remove Base Plate: Use a screwdriver to remove the dishwasher’s base plate, which is usually located at the bottom of the dishwasher.
3. Disconnect Connectors: Locate and disconnect the electrical connectors that are attached to the pump. Pay attention to how they are connected so you can easily reconnect them later.
4. Locate Motor: Identify the circulation pump motor in your Whirlpool dishwasher. It is typically located near the base plate area.
5. Remove Clamps: Use pliers to remove any clamps or brackets that are securing the pump in place.
6. Uncouple Ground Wire: Disconnect the ground wire that is attached to the pump. Again, take note of its position for reconnection later.
7. Remove Screw: Locate the screw that is fastening the pump to the dishwasher. Remove it using a screwdriver.
8. Take Out Motor: Gently lift the pump motor out of the dishwasher, ensuring you don’t damage any surrounding components.
9. Remove Hoses: Disconnect the hoses connected to the pump. Depending on the model, there may be multiple hoses to detach.

Following these steps will allow you to access and remove the pump for further testing or inspection.

Running the Pump Test

Once you have removed the circulation pump from the dishwasher, you can run the test to determine its functionality. Follow these steps:

1. Using your multimeter, select the appropriate setting to measure resistance.
2. Place the multimeter leads on the terminals of the circulation pump.
3. Observe the reading on the multimeter display.
4. Compare the measured resistance to the desired reading for a properly functioning pump.

If the measured resistance matches the desired reading, the pump is functioning correctly. However, if the measured resistance is significantly different from the desired reading, it indicates an issue with the pump.

To get an accurate understanding of the desired reading for your specific Whirlpool dishwasher model, refer to the manufacturer’s documentation or consult a professional technician.

Symptoms of a Faulty Circulation Pump

When it comes to your Whirlpool dishwasher, a faulty circulation pump can lead to various symptoms that hinder its performance. Recognizing these signs will help you pinpoint the issue and take appropriate action. Here are the key symptoms of a bad circulation pump:

1. No water during the wash cycle: If you notice a lack of water in your dishwasher during the wash cycle, it could indicate a problem with the circulation pump. Without proper water circulation, your dishes won’t receive a thorough cleaning.
2. Wash arm not spinning: The wash arm is responsible for distributing water and detergent throughout the dishwasher. If it fails to spin or rotates sluggishly, it may be due to a malfunctioning circulation pump.
3. Wash motor not working: The circulation pump in your dishwasher is powered by the wash motor. If the wash motor is not functioning properly, it can disrupt the water flow and result in poor cleaning performance.

Identifying these symptoms can help you troubleshoot and diagnose issues with your Whirlpool dishwasher’s circulation pump. Next, we will explore troubleshooting tips and additional repairs you can try before considering a pump replacement.

Other Troubleshooting Tips

Before considering replacing the circulation pump, there are other troubleshooting tips you can try to resolve common issues with your Whirlpool dishwasher. These additional repairs can help ensure optimal performance and prolong the lifespan of your dishwasher. Here are some effective troubleshooting tips:

1. Cleaning the Motor Propeller

If you notice that your dishwasher is not cleaning dishes effectively, it could be due to a dirty motor propeller. Over time, food particles and debris can accumulate around the propeller, hindering its rotation and impeding the dishwasher’s cleaning ability. To clean the motor propeller:

• Disconnect power to the dishwasher.
• Remove the dishwasher’s base plate.
• Locate the motor propeller.
• Using a soft brush or cloth, carefully remove any buildup or debris from the propeller.
• Reassemble the dishwasher and test its performance.

If you suspect that there is debris obstructing the pump’s functionality, it’s essential to remove it to restore proper water circulation. Here’s how to remove debris from the pump:

• Disconnect power to the dishwasher.
• Remove the dishwasher’s base plate.
• Find the pump housing and locate the debris filter or grille.
• Carefully remove any debris or obstructions from the filter or grille.
• Reassemble the dishwasher and test its performance.

Regularly cleaning the dishwasher’s filters is essential for optimal performance. Clogged or dirty filters can affect water flow and hinder the dishwasher’s ability to clean dishes effectively. To keep filters clean:

• Consult your dishwasher’s manual to locate the filters.
• Remove the filters from the dishwasher.
• Rinse the filters under running water to remove any debris or buildup.
• Inspect the filters for damage and replace if necessary.
• Reinstall the filters and run a cycle to test the dishwasher’s performance.

Mineral deposits can accumulate in your dishwasher over time, affecting its performance. To remove mineral deposits:

• Fill a dishwasher-safe bowl with white vinegar.
• Place the bowl on the bottom rack of the dishwasher.
• Run a hot water cycle with the vinegar to dissolve mineral deposits.
• Once the cycle is complete, wipe away any remaining deposits with a soft cloth.
• Run a rinse cycle to remove any vinegar residue.

By following these troubleshooting tips, you can potentially resolve common issues with your Whirlpool dishwasher’s circulation pump without the need for a costly replacement. However, if these troubleshooting measures do not resolve the problem, it may be necessary to consult a professional for further assistance or consider replacing the circulation pump.

Remember to always prioritize safety and disconnect power to your dishwasher before performing any repairs or maintenance.

Circulation Pump Replacement

If the circulation pump in your Whirlpool dishwasher needs to be replaced, it is recommended to replace the entire pump and motor assembly. While it is possible to replace just the pump, changing the whole assembly is easier and ensures compatibility.

The installation process involves the following steps:

1. Remove the floor cover plates.
2. Disconnect the water supply and power.
3. Adjust the legs to allow easy access to the pump.
4. Unscrew the attachment screws that secure the pump and motor assembly.
5. Carefully pull out the dishwasher, ensuring not to damage any connections or hoses.
6. Reverse the steps to install the new pump and motor assembly, ensuring proper alignment and secure attachment.

For a visual guide on the installation process, it is recommended to watch a how-to video that demonstrates the replacement steps in detail.

Drain Pump Test

If your Whirlpool dishwasher is experiencing drainage issues, it is important to perform a drain pump test before considering a replacement. By troubleshooting the drain pump, you can determine if it is the cause of the problem. Follow these steps to conduct the drain pump test:

1. First, disconnect power to the dishwasher to ensure your safety.
2. Next, locate the drain pump. It is typically located at the bottom of the dishwasher.
3. Once you have accessed the drain pump, use a multimeter to test its functionality. Set the multimeter to measure resistance.
4. Attach the multimeter probes to the terminals of the drain pump. Ensure that there is a good connection.
5. If the multimeter readings show infinite resistance or no continuity, it indicates a drain pump failure, and the pump needs to be replaced.
6. However, if the multimeter readings show a low or specific resistance value, it means that the drain pump is functioning correctly.

By testing the drain pump with a multimeter, you can determine if it is the cause of the drainage issues. If the drain pump is found to be faulty, it will need to be replaced to resolve the problem.

Drain Pump Replacement

If the drain pump in your Whirlpool dishwasher needs to be replaced, it is recommended to use the recommended replacement part. The compatible pump fits perfectly in most Whirlpool dishwasher models and is easy to install. However, it is essential to check your specific model number to ensure compatibility.

The replacement process involves:

• Disconnecting power
• Removing the old pump
• Installing the new pump using the provided instructions

With the new drain pump in place, your Whirlpool dishwasher should resume proper draining functionality, allowing you to enjoy clean and spotless dishes after each cycle.

Conclusion

Performing a Whirlpool dishwasher circulation pump test is essential for diagnosing any issues with the pump. By following the step-by-step instructions and using the necessary tools, you can determine if the pump is functioning properly or needs to be replaced. This test allows you to confidently identify the root cause of your dishwasher’s cleaning problems.

In addition to the pump test, it is crucial to consider other troubleshooting tips to avoid unnecessary replacements. Cleaning the motor propeller and removing debris can improve the pump’s performance and restore proper water circulation. Keeping the filters clean and removing mineral deposits can also help maintain optimal dishwasher functionality.

If the pump does need to be replaced, it is recommended to opt for the whole pump and motor assembly. Replacing the assembly ensures compatibility and simplifies the installation process. However, it’s important to remember to follow safety precautions and consult professional help if needed. Taking these precautions will help you tackle any issues with your Whirlpool dishwasher efficiently and effectively.

Source Links

• https://machinelounge.com/whirlpool-dishwasher-circulation-pump-test/
• https://machinelounge.com/whirlpool-dishwasher-drain-pump-test/
• https://www.partselect.com/Dishwasher test-motor repair.htm