Kitchenaid Dishwasher Drain Issue: Steps to Fix

Emily Jul 26, 2026

Are you facing drainage issues with your KitchenAid dishwasher? A dishwasher not draining correctly can be quite frustrating, leaving you with a pool of gray, possibly smelly water in your appliance. This doesn't have to be a permanent problem. With a bit of troubleshooting and understanding, you can often resolve this issue on your own. Let's dive into the common causes and solutions for a KitchenAid dishwasher not draining.

How To Reset A Kitchenaid Dishwasher
How To Reset A Kitchenaid Dishwasher

First, it's important to understand that a dishwasher relies on drainage to function correctly. The water used to clean your dishes needs a clear path to exit the appliance and flow into your home's plumbing system. When this path is interrupted, you end up with a dishwasher not draining, leading to various problems like unpleasant odors and improper cleaning.

Our Dark to White Kitchen Remodel Before and After
Our Dark to White Kitchen Remodel Before and After

Common Causes of KitchenAid Dishwasher Draining Issues

Before we delve into troubleshooting, let's explore the common reasons why your KitchenAid dishwasher might not be draining properly.

KitchenAid drawer dishwasher - European edition
KitchenAid drawer dishwasher - European edition

1. **Clogged Drain Hose**: The drain hose is responsible for connecting your dishwasher to the sink's drainpipe. If this hose gets clogged with food particles or debris, water cannot exit the dishwasher.

2. **Failure of the Drain Pump**: The drain pump is a key component that pushes water out of the dishwasher. If this part fails, your appliance may not drain correctly.

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LG Dishwasher Not Cleaning: How to Fix That? - CleanerProfy

3. **Faulty Drain Valve**: The drain valve opens and closes to control the draining process. If it's stuck open or not opening at all, water cannot drain from the dishwasher.

Solving Clogging Issues

Clogs are probably the most common reason for a dishwasher not draining properly. Here's how you can clear clogs and restore proper drainage:

My vintage KDS-21 Kitchenaid dishwasher: 3 steps forward, 2 steps back - Retro Renovation
My vintage KDS-21 Kitchenaid dishwasher: 3 steps forward, 2 steps back - Retro Renovation

Clean the Filter and Drain Hose: Most modern KitchenAid dishwashers have a filter that captures food debris. Regularly cleaning this filter can prevent clogs. Moreover, check and clean the drain hose for any blockages. You might need to disconnect it and run water through it to clear any obstructions.

Fixing Drain Pump and Drain Valve Issues

If cleaning didn't solve the problem, the issue might be with the drain pump or valve.

KitchenAid 24" Built-In Bar Handle Dishwasher with 39 Decibel in Stainless Steel
KitchenAid 24" Built-In Bar Handle Dishwasher with 39 Decibel in Stainless Steel

Testing the Drain Pump: To test the drain pump, run a wash cycle and listen for the pump to start. If it doesn't kick on, it may have failed. In this case, you'll need to replace it. However, if the pump starts and runs but the dishwasher still isn't draining, the problem might be with the drain valve.

Checking the Drain Valve: The first step in diagnosing a faulty drain valve is to check its float. If the float is stuck, the valve won't open and water can't drain. If you find that the float is functional, the problem might be with the valve itself, requiring replacement.

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When It's Time to Call a Professional

While many draining issues can be resolved with troubleshooting, sometimes problems are more complex and require professional assistance. If you've tried the above steps and your KitchenAid dishwasher still isn't draining correctly, it might be time to call a certified appliance repair technician.

They can diagnose and fix the issue safely and effectively. Always remember, trying to repair complex appliance issues on your own can lead to further damage and void warranties. It's often best to leave these tasks to the pros.

Regular Maintenance to Prevent Future Issues

Preventing drainage issues is always better than fixing them. Here are some maintenance tips to keep your KitchenAid dishwasher running smoothly:

Regular Cleaning: Regularly clean the filter, wash the inside of your dishwasher, and run a cleaning cycle with a dishwasher cleaner to prevent buildup of grime, grease, or hard water scale.

Inspect Dishwasher before Each Use: Check your dishes and the bottom of the dishwasher before each cycle. If there's any food debris or large bits, remove them. This can prevent clogs and keep your dishwasher running efficiently.

In many cases, a KitchenAid dishwasher not draining is an issue you can resolve at home. Always remember, regular maintenance and prompt troubleshooting can save you time, money, and frustration in the long run. Don't wait for a minor issue to become a major repair job. Stay on top of your appliance care for a fully functional, long-lasting KitchenAid dishwasher.