What is the most common cause for a dishwasher not to drain?

• <div><p>If your dishwasher isn’t draining, some common causes include a clogged drain filter, drain hose, or air gap. Also, if you have a garbage disposal, a clog in the disposal can back up your dishwasher since they share plumbing, as can a clog in your kitchen sink’s plumbing. A handy DIYer may be able to figure out <a href="https://www.angi.com/articles/how-to-unclog-dishwasher.htm">how to unclog a dishwasher,</a> but you may need to call in a plumber if you can’t locate and clear the clog yourself.</p></div>

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Verified Reviews for Dishwasher Installation pros in Long Beach, CA

*The Angi rating for Dishwasher Installation companies in Long Beach, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

*The HomeAdvisor rating for Dishwasher Installation companies in Long Beach, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

Last update on May 29, 2026

Reviewed in May 2026
Wow! Best home improvement experience ever. We recently had a primary bath done; the product and installation were impeccable from Shugarman's Bath. No hassles. The sales rep was honest, knowledgeable, and a pleasure to work with. The company's paperwork was easy to understand. The...
Shugarman's Bath
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Reviewed in January 2025
Wow! Walter is professional, highly skilled, thorough and conscientious. He even took his shoes off, unsolicited, before entering the house! We needed a sink and dishwasher installed. We have an 85 year old house and plumbing to match. There were challenges, but Walter was quickly able to...
Walter & Stefan Plumbing - Unlicensed Contractor
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Reviewed in December 2023
Awesome! Daniel's customer service is terrific, above and beyond the norm! He came for the oven but also fixed the dishwasher and checked out the electrical issues. Knows his business well! Will hire him for future jobs!
Pacific Coast Services - PCS
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Reviewed in January 2023
The installers showed up right on time and were friendly and efficient. They quickly removed my old furnace and installed the new one, making sure to clean up any debris created.
Top Energy Solutions, Inc.
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Reviewed in September 2022
Installer was well organized, punctual and knowledgeable.
Door MD - Unlicensed Contractor
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Reviewed in February 2022
The installers were knowlegable and courteous.
SoCal Climate Control - LA
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Reviewed in November 2021
INSTALLER WAS VERY PROFESSIONAL AND EXPLAINED WHAT WAS BEING DONE AND WAS VERY FRENDLY.
1st Choice Water Solutions LLC
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Reviewed in August 2021
Installers showed up on time. Courteous and professional. Customer service and install scheduling was a pleasure to deal with.
Service All Stars Heating and Air Comfort
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Reviewed in April 2021
Trevor was prompt, knowledgable, and efficient. He installed a dishwasher we had disconnected for a move with no issues. He was courteous during the service. Highly recommended.
Tech Cert Appliance Repair
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Reviewed in March 2021
Barrett did a great job for me. He installed a hot and cold water system, garbage disposal,faucet, and dishwasher. Showed up as promised and was very good to work with.
The Power Plumber, Inc.
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Dishwasher Installation questions, answered by experts

Water is sitting at the bottom of your dishwasher, likely because the filter is dirty with food debris or because the drain hose has a clog. If the water is still sticking around after following the steps above, it’s time to contact a local plumber.

Basic maintenance, such as cleaning filters, is DIY-friendly, but repairs involving electrical components, pumps, or valves should be handled by a professional.

If your dishwasher isn’t draining, some common causes include a clogged drain filter, drain hose, or air gap. Also, if you have a garbage disposal, a clog in the disposal can back up your dishwasher since they share plumbing, as can a clog in your kitchen sink’s plumbing. A handy DIYer may be able to figure out how to unclog a dishwasher, but you may need to call in a plumber if you can’t locate and clear the clog yourself.

Leaks, poor drainage, failure to start, water not heating, and excessive noise frequently require service.

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters.

The Long Beach, CA homeowners’ guide to dishwasher installation services

From average costs to expert advice, get all the answers you need to get your job done.

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