Troubleshooting 101: How to Fix KitchenAid Dishwasher That Doesn’t Drain

A malfunctioning dishwasher can be a major inconvenience, especially when it’s not draining properly. If your KitchenAid dishwasher is leaving dirty water behind, you’re not alone. This is a common issue that can be tackled with a few troubleshooting steps. This blog post will guide you through the process of diagnosing and fixing a KitchenAid dishwasher that doesn’t drain, empowering you to tackle the problem head-on.

Understanding the Drainage System

Before diving into the troubleshooting steps, it’s helpful to understand how a dishwasher’s drainage system works. The drain pump pushes water out of the dishwasher through a hose that connects to the garbage disposal or a dedicated drain line. A series of filters prevent food particles and debris from clogging the pump and drain hose.

Common Causes of a KitchenAid Dishwasher Not Draining

Several factors can lead to a KitchenAid dishwasher failing to drain properly. Here are some of the most common culprits:

• Clogged Drain Hose: The drain hose can become clogged with food debris, grease, or other obstructions, preventing water from flowing freely.
• Clogged Drain Pump Filter: The drain pump filter traps food particles, but over time, it can become clogged and restrict water flow.
• Faulty Drain Pump: The drain pump itself can malfunction, failing to generate enough power to push the water out.
• Air Gap Issue: The air gap, a small vent located on the countertop near the dishwasher, prevents wastewater from backing up into the dishwasher. A clogged air gap can disrupt drainage.
• Blocked Drain Line: The drain line connecting the dishwasher to the disposal or drain can become blocked with debris.

Troubleshooting Steps for a KitchenAid Dishwasher That Won’t Drain

Let’s tackle the problem systematically:

1. Check for Obvious Clogs

• Examine the Drain Hose: Disconnect the drain hose from the dishwasher and the disposal or drain line. Inspect the hose for any visible blockages. Use a flashlight to illuminate the inside of the hose. If you find any obstructions, remove them carefully.
• Clean the Drain Pump Filter: Locate the drain pump filter, usually found at the bottom of the dishwasher. Remove the filter and clean it thoroughly with a brush or a small cleaning tool. Rinse the filter with warm water to remove any remaining debris.
• Inspect the Air Gap: Check the air gap for any blockage or debris. Remove the air gap cover and clean it thoroughly.

2. Run the Drain Pump

• Locate the Drain Pump: The drain pump is usually positioned at the bottom of the dishwasher, near the drain hose.
• Test the Pump: If you have a multimeter, you can test the pump’s continuity. If the pump is not working, it needs to be replaced.

3. Check the Drain Line

• Inspect the Drain Line: If you have a dedicated drain line for your dishwasher, check for any blockages or kinks. Use a plumber’s snake to clear any obstructions.
• Check the Disposal: If your dishwasher drains into the garbage disposal, ensure the disposal is running smoothly and not clogged.

4. Run a Drain Cycle

• Run the Drain Cycle: Most KitchenAid dishwashers have a drain cycle that can help clear any minor clogs. Run the drain cycle and see if the water drains properly.

When to Call a Professional

If you’ve tried all the troubleshooting steps above and the dishwasher still isn’t draining, it’s best to call a qualified appliance technician. A professional can diagnose the problem accurately and perform any necessary repairs.

Preventative Maintenance for a Smooth-Running Dishwasher

• Regular Cleaning: Clean the drain pump filter regularly, ideally after each use.
• Use a Dishwasher Cleaner: Run a dishwasher cleaner through the machine periodically to remove grease and food particles.
• Avoid Overloading: Don’t overload the dishwasher, as it can hinder water flow and lead to clogging.
• Check for Leaks: Regularly check for leaks around the dishwasher, especially near the drain hose connection.

Final Thoughts: Keeping Your KitchenAid Dishwasher Running Smoothly

A KitchenAid dishwasher that doesn’t drain can be a frustrating problem, but with a little troubleshooting and preventative maintenance, you can keep your dishwasher running smoothly for years to come. Remember, if you’re unsure about any repair or if the problem persists, don’t hesitate to contact a qualified appliance technician.

Answers to Your Most Common Questions

Q: What are some signs that my KitchenAid dishwasher is not draining properly?
A: Common signs include water remaining in the bottom of the dishwasher after a cycle, a gurgling sound during the drain cycle, or a slow draining time.
Q: How often should I clean the drain pump filter?
A: It’s recommended to clean the drain pump filter after each use, especially if you tend to wash dishes with a lot of food debris.
Q: Can I use a drain cleaner in my KitchenAid dishwasher?
A: It’s not recommended to use drain cleaners in your dishwasher. They can damage the internal components of the machine.
Q: How do I know if the drain pump is faulty?
A: A faulty drain pump may make a humming or grinding sound when it’s running but not draining water. You can also use a multimeter to test the pump’s continuity.
Q: What is the air gap and why is it important?
A: The air gap is a small vent located on the countertop near the dishwasher. It prevents wastewater from backing up into the dishwasher. If the air gap is clogged, it can disrupt drainage.