Why Is My Kitchen Aid Dishwasher Not Draining

Why Is My Kitchen Aid Dishwasher Not Draining

Having a dishwasher is a convenient and time-saving appliance in any kitchen. However, when it fails to drain properly, it can be frustrating and lead to dirty dishes piling up. If you find yourself asking, “Why is my Kitchen Aid dishwasher not draining?” you’re not alone. This article will explore the common reasons behind this issue and provide valuable insights to help you troubleshoot and resolve the problem.

1. Clogged Drain Hose

One of the most common reasons for a dishwasher not draining is a clogged drain hose. Over time, food particles, grease, and debris can accumulate in the hose, obstructing the flow of water. To check if this is the issue, follow these steps:

  • Turn off the dishwasher and unplug it from the power source.
  • Locate the drain hose, usually connected to the sink’s plumbing or garbage disposal.
  • Disconnect the hose and inspect it for any blockages.
  • If you find a clog, use a long, flexible brush or a pipe cleaner to remove it.
  • Reconnect the hose and test the dishwasher to see if it drains properly.

2. Blocked Air Gap

The air gap is a small device located on the countertop or sink that prevents wastewater from flowing back into the dishwasher. If the air gap becomes blocked, it can hinder proper drainage. Here’s how to check and clean the air gap:

  • Remove the cover of the air gap.
  • Inspect the inside for any debris or buildup.
  • Use a toothpick or a small brush to remove any obstructions.
  • Replace the cover and test the dishwasher to see if it drains correctly.

3. Clogged Filter or Drain Basket

A clogged filter or drain basket can also prevent your Kitchen Aid dishwasher from draining effectively. These components are designed to catch food particles and prevent them from entering the drain pump. Over time, they can become clogged, leading to drainage issues. To clean the filter and drain basket:

  • Remove the bottom rack of the dishwasher.
  • Locate the filter and drain basket at the bottom of the dishwasher.
  • Remove them and rinse them under running water to remove any debris.
  • Inspect for any damage and replace if necessary.
  • Reinstall the filter and drain basket, then test the dishwasher.

4. Faulty Drain Pump

If none of the above solutions resolve the drainage problem, it’s possible that the drain pump itself is faulty. The drain pump is responsible for pumping out the water from the dishwasher. Over time, it may wear out or become clogged, leading to poor drainage. In this case, it’s best to contact a professional technician to inspect and replace the drain pump if necessary.

5. Improper Installation

In some cases, a dishwasher not draining properly may be due to improper installation. If the drain hose is not installed correctly or is kinked, it can impede the flow of water. Ensure that the drain hose is properly connected and free from any obstructions or bends. Refer to the manufacturer’s instructions or consult a professional if you’re unsure about the installation process.

6. Plumbing Issues

Occasionally, the problem may not lie with the dishwasher itself but with the plumbing system. A clogged or blocked drain pipe can prevent the dishwasher from draining correctly. If you’ve ruled out all other possible causes, it’s advisable to contact a plumber to inspect your plumbing system and address any underlying issues.

Frequently Asked Questions (FAQ)

1. Why is my dishwasher not draining after a cycle?

If your dishwasher is not draining after a cycle, it could be due to a clogged drain hose, blocked air gap, or a faulty drain pump. Follow the troubleshooting steps mentioned in this article to identify and resolve the issue.

2. Can a clogged filter cause a dishwasher not to drain?

Yes, a clogged filter or drain basket can obstruct the flow of water and cause a dishwasher not to drain properly. Regularly cleaning and maintaining these components can help prevent drainage issues.

3. How often should I clean the dishwasher filter?

It is recommended to clean the dishwasher filter at least once a month to prevent clogs and ensure proper drainage. However, the frequency may vary depending on the usage and the amount of food debris in your dishwasher.

4. Can I use drain cleaners to unclog my dishwasher?

No, it is not recommended to use drain cleaners to unclog your dishwasher. These chemicals can damage the dishwasher’s components and may not effectively remove the clog. It’s best to use manual methods like brushing or pipe cleaners to clear any obstructions.

5. Why is my dishwasher not draining completely?

If your dishwasher is not draining completely, it could be due to a partial clog in the drain hose, a faulty drain pump, or an issue with the plumbing system. Check for any blockages and ensure proper installation before seeking professional help if needed.

6. How much does it cost to repair a dishwasher drain pump?

The cost of repairing a dishwasher drain pump can vary depending on the model, brand, and the technician’s fees. On average, the cost can range from $150 to $300, including parts and labor. It’s advisable to get a quote from a professional technician before proceeding with the repair.


A Kitchen Aid dishwasher not draining can be a frustrating problem, but with the right troubleshooting steps, it can be resolved. Common causes include a clogged drain hose, blocked air gap, clogged filter or drain basket, faulty drain pump, improper installation, or plumbing issues. By following the tips provided in this article and seeking professional help when needed, you can ensure your dishwasher drains properly and keeps your kitchen running smoothly.