Whirlpool Dishwasher Not Draining: Troubleshooting Tips

April 8, 2024

Whirlpool Dishwasher Not Draining: Troubleshooting Tips | Whirlpool Appliance Repair
Home » Blog » Whirlpool Dishwasher Not Draining: Troubleshooting Tips

When your Whirlpool dishwasher is not draining properly, it can be frustrating and inconvenient. However, before you call for professional assistance, there are several troubleshooting steps you can take to resolve the issue yourself. In this comprehensive guide, we’ll walk you through the most common reasons why your Whirlpool dishwasher might not be draining and provide practical solutions to get it back up and running efficiently.

Check for Blockages in the Drain Hose

One of the primary reasons why your Whirlpool dishwasher may not be draining is due to blockages in the drain hose. Over time, food particles, grease, and debris can accumulate in the hose, obstructing the flow of water. To check for blockages, first, ensure that the dishwasher is disconnected from power. Then, locate the drain hose, which is usually located underneath the sink or behind the dishwasher. Remove the hose and inspect it for any clogs or obstructions. If you find any debris, use a pipe cleaner or a wire hanger to remove it carefully.

Clean the Filter

Another common culprit behind a Whirlpool dishwasher not draining is a clogged filter. The filter is designed to catch food particles and prevent them from clogging the drain system. However, if the filter becomes dirty or blocked, it can hinder the drainage process. To clean the filter, refer to your dishwasher’s user manual for specific instructions. In most cases, you can simply remove the filter from the bottom of the dishwasher and rinse it under running water to remove any accumulated debris.

Inspect the Drain Pump

The drain pump plays a crucial role in removing water from your Whirlpool dishwasher during the drain cycle. If the drain pump is faulty or clogged, it can prevent water from draining properly. To inspect the drain pump, you’ll need to access the bottom of the dishwasher. Disconnect the dishwasher from power and remove the bottom panel to expose the drain pump. Check for any visible signs of damage or debris accumulation. If the pump appears to be clogged, carefully remove the obstruction using a pair of needle-nose pliers or a screwdriver.

Ensure Proper Installation

Sometimes, a Whirlpool dishwasher may not drain properly due to improper installation. Ensure that the dishwasher is installed correctly and that the drain hose is properly connected to the sink’s drainage system. If the hose is kinked or twisted, it can restrict the flow of water and cause drainage issues. Additionally, check that the air gap, if present, is not clogged with debris. Proper installation is essential for optimal dishwasher performance.

Run a Maintenance Cycle

Regular maintenance is key to keeping your Whirlpool dishwasher running smoothly. Running a maintenance cycle can help prevent drainage issues by removing built-up residue and debris from the dishwasher’s interior. Refer to your dishwasher’s user manual for instructions on how to run a maintenance cycle. Typically, you’ll need to add dishwasher cleaner to the detergent dispenser and select the appropriate cycle. Running a maintenance cycle once a month can help prevent future drainage problems and prolong the life of your dishwasher.


In conclusion, a Whirlpool dishwasher not draining can be a frustrating issue to deal with. However, by following the troubleshooting tips outlined in this guide, you can identify and resolve the problem quickly and effectively. From checking for blockages in the drain hose to cleaning the filter and inspecting the drain pump, these steps can help restore proper drainage and ensure that your dishwasher continues to operate efficiently. Remember to always consult your dishwasher’s user manual for specific instructions and safety guidelines.


  • Q: Why is my Whirlpool dishwasher not draining?

A: Possible reasons include blockages in the drain hose, a clogged filter, or a faulty drain pump.

  • Q: How often should I clean my dishwasher’s filter?

A: It’s recommended to clean the filter once a month to prevent drainage issues and maintain optimal performance.

  • Q: Can improper installation cause drainage problems?

A: Yes, improper installation, such as a kinked drain hose or a clogged air gap, can restrict water flow and lead to draining issues.

  • Q: What should I do if I suspect a problem with the drain pump?

A: Inspect the pump for visible damage or debris accumulation. If necessary, consult a professional technician for further assistance.

  • Q: Is running a maintenance cycle important for preventing drainage issues?

A: Yes, running a maintenance cycle regularly helps remove built-up residue and debris, preventing future drainage problems.

Experience hassle-free Whirlpool dishwasher repairs with Whirlpool Appliance Repair. Contact us today for expert assistance and get your dishwasher back to optimal performance! For more tips on maintaining your Whirlpool dishwasher, check out our previous blog: “Top Whirlpool Dishwasher Repair Service Tips for Spring.”

Whirlpool Appliance Repair | Whirlpool Appliance Repair


Want to get the best technicians to fix your appliance problems? No worries, because Whirlpool Appliance Repair is here to save your day, so book a consultation with our experts today without any hassle!