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Why Is My Dishwasher Not Draining?

All City Plumbing tech with customer near dishwasher

Dishwashers are designed to make our lives easier, so if they start giving us problems, it is especially concerning. One issue that those with dishwashers can face is when a dishwasher stops draining properly. If a dishwasher fails to drain like it’s supposed to, it can lead to serious problems, including:

  • Standing water in the bottom of the dishwasher
  • Water leaks
  • Damaging the dishwasher’s motor or other parts

What to Do If Your Dishwasher’s Drain Isn’t Draining

If your dishwasher is not draining, you need to act quickly before it leads to other plumbing problems. There are a wide range of issues that could be the reason your dishwasher isn’t draining. The first thing you should do if your dishwasher is not draining is troubleshoot the problem. The following are tips for troubleshooting why your dishwasher isn’t draining:

  • Check the sump – Make sure nothing is blocking the sump. It is usually located either in the back of the dishwasher or in the dishwasher’s tub. If it’s clogged, you may discover standing water. If possible, remove any debris, such as food, from the sump, and see if that solves the draining issue. Keep in mind that it is normal for a small amount of water to be in the tub of some dishwashers after they have completed a cycle.
  • Check the filter – A dishwasher’s filter is generally located in the dishwasher’s tub. Filters usually surround the base of the dishwasher’s lower spray arm. Make sure that the filter isn’t clogged with food particles and other debris. That could be the source of your dishwasher’s draining problems.
  • Check the door – If your dishwasher’s door isn’t closing properly, it can lead to your dishwasher failing to drain completely. Make sure that your dishwasher is closing completely, and that there isn’t a problem with your dishwasher’s latch or locking mechanism.
  • Check the drain hose – The drain hose is often located under the kitchen sink. It should not have many, if any, kinks in it. If it does, try to straighten it out. Those kinks could be contributing to the dishwasher failing to drain. In addition, the drain hose can become clogged. If it does, that can prevent the dishwasher from properly draining.
  • Check the drain valve – Some dishwashers have a drain valve. The drain valve enables the dishwasher to drain water during the wash cycle. If the drain valve is broken, it can result in the dishwasher failing to drain properly.
  • Check the garbage disposal – If your garbage disposal or kitchen sink is clogged, it can create a ripple effect that results in your dishwasher being unable to drain.

Reach Out to Our Plumbing Experts for Free, On-Site Estimates!

For almost 15 years, All City Plumbing has been providing high quality plumbing services in Rancho Cucamonga and surrounding areas. We have an in-depth understanding of a wide variety of plumbing issues, including drain cleaning, and dishwasher maintenance and repair. All City Plumbing has earned an A+ rating from the Better Business Bureau and we’re known throughout the community for our second-to-none customer service, which includes offering our customers a money back guarantee, financing options, industry-leading warranties, and discounts.

For more information about All City Plumbing, and why we’re the best choices to help you with your plumbing needs, check out our customers’ reviews.

Dishwasher problems? Call us at (909) 552-7550 or contact us online to discuss the issue or schedule a free, on-site estimate with our experienced plumbers. We are open 7 days a week, and we offer same-day appointments.

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