Dishwasher Not Draining? Here’s Why and How to Fix the Issue!

Do you have a dishwasher that won’t drain? It can be really annoying when your dishes come out dirty and wet. But don’t worry, it’s often an easy fix! There are a few common reasons why your dishwasher might not be draining properly.

In this blog post, we’ll go over why this happens and show you simple steps to fix it. Whether it’s a clogged drain or a problem with the pump, we’ve got you covered. Let’s get your dishwasher working like new again!

Why is Dishwasher Not Draining? 4 Common Causes!

Clogged Drain Hose

One common reason your dishwasher might not drain is a clogged drain hose. The drain hose is the pipe that carries water from the dishwasher to your sink drain or garbage disposal. Over time, food particles and debris can block this hose. To fix this, you can disconnect the hose and check for any obstructions. If you find any, clear them out to allow the water to flow freely.

Blocked Air Gap

Another cause could be a blocked air gap. The air gap is a small device usually found next to your sink faucet. It helps prevent dirty water from flowing back into the dishwasher. If this air gap gets clogged, it can stop the dishwasher from draining properly. To fix it, remove the cover and clean out any debris inside.

Dirty Filter

A dirty filter can also prevent proper drainage. The filter traps food particles and other debris to keep them out of the drain. If it gets too clogged, water can’t flow through it. You should check the filter regularly and clean it if it looks dirty. Usually, you can remove the filter from the bottom of the dishwasher, rinse it under water, and put it back.

Faulty Drain Pump

Lastly, a faulty drain pump might be the problem. The drain pump is responsible for pushing the water out of the dishwasher. If the pump is broken or malfunctioning, it won’t be able to pump the water out. You might need a professional to inspect and repair or replace the pump if it’s not working properly.

By checking these common causes, you can often find out why your dishwasher isn’t draining and fix the issue yourself.

How to Fix Your Dishwasher Not Draining: 7 Simple Steps

If your dishwasher isn’t draining, it can be frustrating. But don’t worry, there are steps you can take to fix it. Here’s a simple guide to help you get your dishwasher working properly again.

1. Check the Drain Hose

The drain hose is a tube that carries water from the dishwasher to the sink drain or garbage disposal. If this hose is blocked or bent, water can’t escape, and the dishwasher won’t drain.

First, locate the drain hose. It’s usually at the bottom of the dishwasher, connected to the side or back. Gently pull on the hose to see if it’s twisted or kinked. If you find any bends or twists, straighten the hose carefully. Be gentle to avoid damaging it.

Next, check inside the hose for any blockages. You might need to disconnect the hose from the dishwasher to see inside. Once disconnected, look inside the hose and use a long, flexible brush or pipe cleaner to remove any debris. You can also run water through the hose to see if it flows freely. After clearing any blockages, reconnect the hose to the dishwasher and check if the problem is fixed.

2. Clean the Filter

Dishwashers have filters to catch food scraps and other debris. If the filter gets clogged, it can prevent the dishwasher from draining properly.

To start, find the filter. It is usually located at the bottom of the dishwasher. Open the dishwasher door and look for a round or square cover at the bottom. Remove this cover to access the filter.

Once you have the filter out, rinse it under running water. Use a small brush, like an old toothbrush, to scrub away any stubborn food particles. Be sure to clean all sides of the filter. After rinsing and scrubbing, check for any remaining debris and remove it.

Once the filter is clean, place it back into its position and secure the cover. Running a test cycle can help ensure that the filter is properly installed and the dishwasher is draining correctly.

3. Check the Garbage Disposal

Your dishwasher might be connected to your garbage disposal. If the disposal is clogged, it can stop the dishwasher from draining.

Begin by inspecting the garbage disposal. Make sure it’s not clogged with food or other debris. If you see any blockages, you can use a plunger to help clear them. Place the plunger over the drain and pump up and down a few times.

Next, turn on the disposal to help clear any remaining debris. Listen for a normal grinding noise, which indicates that the disposal is working correctly. If your dishwasher was recently installed, check if the knockout plug in the garbage disposal was removed.

This plug can block the drainage if it’s still in place. Use a screwdriver or pliers to remove the plug if necessary. After making these checks and adjustments, run the dishwasher to see if it drains properly.

4. Inspect the Drain Valve

The drain valve controls when water leaves the dishwasher. If it’s not working correctly, the water won’t drain properly.

To inspect the drain valve, locate it at the bottom of the dishwasher. It may be covered by a panel or other parts. Carefully remove any parts that are covering the valve to access it.

Once you can see the valve, check for any blockages or debris. Make sure the valve can move freely and is not stuck in one position. To test the valve, turn on the dishwasher and see if the valve opens and closes as it should.

If the valve is stuck or not operating correctly, it might need to be replaced. You can find a replacement valve at most appliance parts stores or online. After replacing or fixing the valve, test the dishwasher to ensure it drains properly.

5. Look at the Dishwasher Pump

The pump is responsible for pushing water out of the dishwasher. If it’s clogged or damaged, the dishwasher won’t drain.

First, locate the pump at the bottom of the dishwasher. You might need to remove the lower spray arm or other parts to access it. Once you can see the pump, check for any visible blockages, such as food particles or objects.

If you find anything blocking the pump, carefully remove it. You might use a small tool or your fingers to clear the debris. After removing the blockage, check if the pump is damaged. If it looks cracked or broken, you may need to replace it.

Replacement pumps are available at appliance parts stores or online. Install the new pump or reassemble the old one, and then run the dishwasher to see if the draining issue is resolved.

6. Check for Leaks

Leaks can cause drainage problems in your dishwasher. If there’s water leaking, it might prevent proper draining.

Begin by inspecting the area around the dishwasher. Look for any signs of water on the floor or around the dishwasher. Check the hose connections, door seals, and any visible pipes for leaks.

If you find a leak, tighten any loose connections. If the door seal is damaged, you might need to replace it. Door seals can be purchased from appliance parts stores or online.

If the leak is coming from a pipe or hose, check if it’s cracked or damaged. Replace any damaged parts to stop the leak. After fixing the leaks, run the dishwasher through a cycle to ensure it drains correctly and no more water escapes.

7. Call a Professional

If none of these steps solve the problem, it might be time to call a professional. Sometimes, the issue is more complicated and requires expert help.

Start by finding a qualified repair technician. Look for someone with good reviews and experience with dishwashers. Explain the problem you’re having and what steps you’ve already taken to fix it.

Schedule a time for the technician to come and inspect your dishwasher. They will have the tools and expertise to diagnose and fix more complex issues. While it might cost more to hire a professional, it ensures that your dishwasher is repaired correctly and safely.

By following these steps, you can often fix a dishwasher that isn’t draining. If the problem persists, professional help will get your dishwasher back to working like new.

Frequently Asked Questions

How Do I Know if My Dishwasher Drain Hose is Clogged?

You might notice that your dishwasher is not draining properly or that water is pooling at the bottom of the dishwasher. If you hear unusual noises or see slow drainage, it could indicate a clogged drain hose. Inspecting and clearing the hose can often resolve these issues.

What Should I Do If My Dishwasher Filter is Broken?

If the filter is broken or damaged, it’s important to replace it. A broken filter can lead to poor drainage and can also cause debris to spread throughout the dishwasher. You can purchase a replacement filter from an appliance parts store or online.

How Can I Tell if My Dishwasher’s Garbage Disposal is Blocked?

If your dishwasher drains slowly or not at all, and it’s connected to a garbage disposal, check for clogs in the disposal. You might notice a foul smell or see water backing up into the sink. Running the disposal or using a plunger can help clear blockages.

Why is My Dishwasher Drain Valve Stuck?

The drain valve might be stuck due to debris or wear and tear. If it doesn’t open or close properly, it can prevent water from draining. Cleaning the valve and checking for any obstructions can help, but if it’s damaged, it might need replacing.

How Do I Check If My Dishwasher Pump is Working?

To check if the pump is working, listen for its operation during the drain cycle. If you don’t hear it running or if water isn’t being pumped out, there might be a blockage or a problem with the pump. Inspecting and cleaning the pump or replacing it if needed can resolve the issue.

What Are the Signs of a Leak in My Dishwasher?

Signs of a leak include water pooling around the dishwasher, wet floors, or damp spots on the walls or cabinets near the dishwasher. If you notice any of these signs, check the hose connections, door seals, and other components for leaks and fix them promptly.

Can I Fix a Dishwasher Drain Issue Without Professional Help?

Many common dishwasher drain issues can be fixed with DIY methods. Start by checking and cleaning the drain hose, filter, and pump. If these steps don’t solve the problem, or if the issue seems more complex, consulting a professional might be necessary.

How Often Should I Clean My Dishwasher Filter?

It’s a good idea to clean your dishwasher filter every month or so. Regular cleaning helps prevent clogs and ensures the dishwasher drains properly. If you use the dishwasher frequently or notice drainage issues, you might need to clean it more often.

What Tools Will I Need to Fix a Dishwasher Drain?

Basic tools you might need include a screwdriver, pliers, a flexible brush, and a small brush for cleaning. Depending on the problem, you may also need a replacement part, such as a drain valve or pump. Having these tools on hand will help you address common drainage issues.

When Should I Call a Professional for Dishwasher Repairs?

Call a professional if you’ve tried basic troubleshooting and the dishwasher still doesn’t drain properly. If you encounter complex issues, such as electrical problems or severe mechanical failures, a technician with experience can diagnose and repair the problem accurately.