Dishwasher Wont Drain 8 Steps To Fix It
One of the most common problems reported to plumbers by homeowners is when a dishwasher wont drain. While it can be scary to open the dishwasher door and see standing water at the bottom, it isnt always a plumbing emergency. In fact, you may be able to correct the problem yourself without professional help.
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Home Warranties And Dishwashers
Most home warranties will cover dishwasher repairs, and even replacements, depending on your specific plan. Providers like First American Home Warranty, Choice Home Warranty, and Select Home Warranty specifically provide coverage for dishwashers and other kitchen appliances like microwaves and garbage disposals. The repair or replacement process is as simple as contacting your provider and setting up an appointment with an approved contractor, who will come to your property to evaluate and fix the issue.
After the dishwasher repair technician inspects your dishwasher, theyll let you know if a simple repair or complete replacement is necessary. If your dishwasher needs to be replaced, your provider should cover the entire cost of the replacement, minus the trade service fee.
All home warranty plans are different, so be sure to understand the terms and conditions before installing a replacement dishwasher.
If you dont have a home warranty, read reviews on trusted, local service technicians and hire one to fix your dishwasher. Note that in this instance, youll have to front the out-of-pocket costs for a new dishwasher yourself. If you sign up for one of the best home warranty plans, you can save on future repairs. For example, the average dishwasher repair cost is $150. With our recommend provider CHW you would only pay a service fee of $75thats 50% savings.
Run Your Dishwasher Again
If youve noticed that your dishwasher isnt draining, dont panic, it could be a one-time thing. Maybe the dishwasher inadvertently shut off, disrupting the cycle. So, if you see water pooled at the bottom, it could be that your dishwasher didnt complete its drain cycle.
Rerunning the dishwasher usually fixes the issue. You also can check whether your appliance has a cancel or drain buttonmost dishwashers now have one. If you’re not sure, check your user manual or search online for the dishwasher’s make and model for information on this. If the manual has a troubleshooting section, be sure to review that section as well.
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Dirty Filter And Trap
Ensure if your dishwasher has a filter. Look for the model name of your dishwasher on the inside of the machine. Google what you find, and locate the owner’s manual or how-to videos to determine the specific location.
It’s often just below the revolving piece under the lower tray. Once you’ve found it, lift it out of its holding spot and check the sump underneath for any additional food particles.
Your last move in this sequence if the dishwasher isn’t draining water is to wash the filter thoroughly and replace it. Then, do another run and see if there are any improvements.
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If you have water in the bottom of your dishwasher, you are dealing with a problem that is a hassle and could potentially be very stinky. Dishwashers are needed for the family to stay clean and organized. There is no need for a dishwasher to be clogged for a long time. Instead of troubleshooting and figuring out how to fix the problems yourself, entrust the job to the professional technicians at Fix Appliances CA.
The team at Fix Appliances CA has seen it all and has the expertise and safety procedures to get the job done quickly and efficiently. So give the friendly appliance team at Fix Appliances a chance to save you time and hassle and get your kitchen smelling better today.
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Our technicians are waiting for your call. So dont wait another minute with the dishwasher that will not drain. Call us today at or online now! You can find our services in Ottawa, Toronto and any other GTA areas.
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Check The Sink’s Air Gap Cylinder
An air gap cylinder keeps water flowing in the right direction during the dishwashers cycles. It also prevents wastewater from backing up into the dishwasher. It should be located behind the sink and near the dishwasher outlet hose.
Check the air gap cylinder to make the inside is clear. If you notice any buildup, clean it out and make sure its tightly secured.
Familiarize Yourself With Dishwasher Parts
Most often, dishwasher clogs are caused by improper use. For instance, some dishwasher owners aren’t making sure they dispose of food and cooking oils properly, which causes fragments and oils to become lodged within dishwasher drain pipes.
Before you diagnose the problem, however, get to know your dishwasher. The diagram below will familiarize you with some dishwasher parts we’ll be discussing shortly.
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Need Charlotte Plumbing Services
Having trouble with your dishwasher and live within 25 miles of Charlotte North Carolina? We’re here to help!
E.R. Services is open 24/7, 365 days a year. That means you dont need to take time off work or wait until the morning because we never charge extra for nights or weekends. Just give us a call at 704-269-1066 or use our online contact form.
Have a different plumbing question? Learn more about our Charlotteresidential plumbing services here.
When To Call In A Professional
If you dont know how to unclog a dishwasher and your dishwasher still has standing water and doesnt drain after these suggestions, it may be time to call in a professional to assess the issue.
Once a service technician enters your home, theyll determine if a repair or replacement is necessary. If a repair is needed, theyll most likely repair the dishwasher that day. If a replacement is needed, youll have to schedule a follow-up appointment for the professional to remove your old dishwasher and install your new appliance.
Call us at 735-4405 or visit Shield Home Watch to learn about home watch, key holding service, concierge services, and more. If you would like to book an appointment 24 hours a day please visit our booking site.
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Solution : Deep Clean The Garbage Disposal
Most dishwashers dont have a dedicated plumbing line. Instead, they connect and drain through the garbage disposal, which is connected to the outside drain pipe.
If you dont run your garbage disposal often, or you dont clean it frequently, food and debris can build up and prevent water from properly draining out of your dishwasher.
Look into the disposal with a flashlight and give the area a sniff.
If you see buildup around the disposal blades or smell a pungent odor, a clogged disposal could be causing your issue.
As a first step, run hot water and then turn on your disposal to make sure it is clear of food matter.
Then, run a dishwasher cycle to see if that fixed the problem. If not, follow the steps below to deep clean your disposal.
Instructions:
Check And Clean The Drain Hose
If your dishwasher still seems to be clogged, there may be an issue with your drain hose. If the hose is located behind the dishwasher, you’ll have to pull your appliance away from the wall to access it.
Start by inspecting the hose for any kinks that may be preventing water from draining. If there are obvious signs that the hose is bent, try to straighten it.
If the hose doesn’t show any obvious signs of damage, check for a clog. Place a towel or small container beneath the connection between the hose and clamp to catch water, and then use pliers to loosen the clamp so that you can remove the hose and visually examine it for any clogs.
After looking for signs of a clog, try flushing the hose with hot water and watch to see if the water is flowing properly.
If the hose seems to be clogged, use drain or hose cleaner and follow the product instructions provided to flush out debris. Once you’ve checked for and removed any clogs in the hose, you’ll need to reattach it to the appliance. If the hose is overly clogged with debris, you may want to replace the hose.
If these steps don’t resolve the problem, schedule a repair with an Asurion Expert to help fix the issue.
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Maintenance For The Dishwasher And Other Appliances
For tips on how to create a maintenance list for your dishwasher and the other major appliances in your home, check out this article.
The contents of this article are provided for general guidance only. First American Home Warranty does not assume any responsibility for losses or damages as a result of using this information.
This article is about…
Your Dishwasher Is Backing Up Water In Your Sink

Your dishwasher is connected to the drainage system in your kitchen sink. If your dishwasher is running and water begins backing up into your sink, it’s possible your dishwasher has a clog.
You can rule out a dishwasher clog if you run your garbage disposal while the dishwasher is off. It’s possible that the culprit is food that is caught in the sink, which means there are no problems with your dishwasher.
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Dishwasher Troubleshooting: Dishwasher Is Not Draining
Why is my dishwasher not draining?
The most common reason for a dishwasher to stop draining is because it has food debris clogged in the filter or the water pump. This is why it is important to provide regular maintenance to your dishwasher and clean it properly.
What can I do if my dishwasher is not draining?
If your dishwasher is clogged and not draining, check the filter and pump .
First, remove the filter. Review your owner’s manual to learn how to do this.
Remove any debris and objects that are trapped in the filter. Clean it with soap and a soft brush under running water.
Before reinstalling the filter, remove the pump cover by following the instructions in your owner’s manual. Check the pump and remove any debris and standing water you find with a sponge. Use caution as some debris may be sharp.
Reinstall the pump cover and filter.
What else can I do to unclog my dishwasher?
If the water is still not draining, then please call Bosch Customer Service at 1-800-944-2904 for assistance.
Which Dishwasher Brand Is Best For Reliability
Failing to drain is one of the most common dishwasher problems. In fact, it accounted for more than one in seven of all the faults reported in our survey of Which? members.
That’s why we ask thousands of Which? members about their dishwashers every year, to see which brand makes the most reliable models, and which brands disappoint.
The difference between the most and least reliable is staggering: 86% of dishwashers from the best brand were fault-free after 10 years, compared with just 71% from the worst brand.
To find out which brands are least likely to let you down, read our guide to the most reliable dishwasher brands.
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How To Prevent Dishwasher Clogs
- Remove crumbs and other leftover food from your plates, bowls and other dishes before loading the dishwasher.
- Choose a hot water cycle when you use the dishwasher.
- Keep your dishwasher clean and in good working order. Wipe down both the outside and the inside, cleaning all the dishwasher parts you can access.
- Regular check the filter and remove anything that might be stuck in it.
- Run the dishwasher often, always using dishwasher detergent. Its normal operations help keep it cleared out.
You may be able to solve the problem of a dishwasher not draining by yourself. But if you cant, you may need to contact a professional to fix the appliance. The Home Depot can help with plumbing repairs.
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Dishwasher Struggling To Drain Here Are Some Common Causes
Your dishwasher is at the core of your kitchen, cleaning dish after dish after delicious home-cooked meals. So, when the dishwasher is not draining properly, it can throw off your whole kitchen cleaning cycle. Drainage issues can come from clogs or even a damaged part. Need help diagnosing a drainage problem? Let us serve you with exclusive expert insight into the most common reasons why your dishwasher wont drain.
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Check The Dishwasher Air Gap And Drain Hose
If you have a dishwasher thats not draining and the previous steps have not fixed the problem, you may have a clogged dishwasher due to the drain hose.
Your dishwasher drain hose can be set up in one of two ways: through an air gap or with a high loop. An air gap is a device that stops dirty drain water from flowing back into your dishwasher.
In some areas, an air gap is not required. In this case, your dishwasher drain must have a high loop that suspends the drain hose from the top of the cabinet to use gravity to prevent backflow. The hose may be hanging down or it may be tangled, causing a blockage.
If the drain hose is not tangled, check to see if it is clogged. You can remove the rubber hose that runs from the dishwasher to the sink drain or garbage disposal, and use a dowel to check for and clear any debris. Before you begin, make sure to turn off the power to the dishwasher.
If you see no issues with the dishwashers drain hose, next check your disposal. The drain hose is usually connected to the garbage disposal that may be where the blockage is located.
Clean The Dishwasher Filter
You may not realize that your dishwasher has a filter, but most do, and it can quickly get clogged with food debris, water deposits, and bits of garbage. Regularly cleaning the filter, which is located at the bottom of the dishwasher, can help prevent clogs. Consult your manual and our dishwasher filter guide for helpful tips, especially if you are removing the filter for the first time.
If there is standing water in your dishwasher, use a wet vac to siphon any excess water before removing the filter. Once you have removed the filter, simply hand wash it in warm, soapy water. An old toothbrush can also help remove any hard-to-clean spots. Rinse thoroughly under warm running water. Do the same if your dishwasher has a secondary filter. Let both filters air dry before placing them back in the dishwasher.
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Check If The Waste Hose Is Blocked
If cleaning the filters doesnt fix the problem, check that the waste hose at the back of the dishwasher isnt squashed or kinked if it is, this could stop the waste water from draining away.
If you have a freestanding machine, you and one other person will be able to pull it away from the wall. You can then check that there’s enough room for the hose to drain properly.
If you have an integrated model this will be trickier, and would be worth calling in a professional for.
Clean Your Sink’s Air Gap

If you don’t have a garbage disposal, check your sink air gap. It’s a small, slotted cylinder below the sink near the dishwasher outlet hose.
To see if the air gap is the problem, remove it by turning it counterclockwise. Then clean out any debris with a stiff brush. After you’ve removed all the buildup, replace the air gap, secure it, and try running your dishwasher again.
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Check And Clean The Dishwasher Filter
If dishwasher drain cleaning didnt do the trick, check the appliance’s filter. If you cant locate it, check your owners manual or look up your make and model online .
- Once youve located the dishwasher filter, remove it by turning it clockwise until it releases.
- Remove this upper filter to gain access to the larger filter beneath it.
- Clear any debris you find in the filter.
- Replace the top filter and then turn it counterclockwise to secure it.
- Give the sprayer arm a gentle spin to be sure youve replaced the filter correctly .
- Run a rinse cycle on the hottest setting to see if the problem has been resolved.
Reasons Why Your Dishwasher Wont Drain
It can give you a terrible sinking feeling to notice that your dishwasher wont drain. Seeing a puddle of standing water instead of sparkling clean plates can be a real nightmare and should be dealt with quickly to avoid bacteria building up and creating a stagnant, smelly mess.
It is important to note that if you conduct any DIY work, you must turn off the dishwasher at the mains or unplug the appliance in order to isolate the electric supply. You will also need to isolate the water supply.
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