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 Los Alamitos, CA

*The Angi rating for Dishwasher Installation companies in Los Alamitos, 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 Los Alamitos, 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 July 22, 2026

Reviewed in July 2026
John installed patio tiles in the front and back of our house. His bid was very competitive and he did a great installation job, I couldn't be happier with the result. Highly recommended!
JOHN A LOWENBRUCK II
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Reviewed in April 2026
Very professional and work completed in a timely manner. Also installed a dishwasher in the kitchen.
Handy Andy's Construction
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Reviewed in March 2024
Excellent installation and customer service.
Professional Home Automation and Security LLC
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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 April 2023
If you have a dream, Enclave Remodeling can help you achieve your dream. Our dream was to have the kind of kitchen that you thought was only possible in magazines; Omri with Enclave Remodeling helped us realize our dream. Ours was a huge project, which required tearing down two load-bearing...
Enclave Remodeling, 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 April 2022
Alex installed my water heater and was very professional and pleasant. His rates were affordable and the installation was smooth and looked very clean. Would definitely recommend!
Bonaventure Maintenance - Unlicensed Contractor
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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 May 2021
Our kitchen was in dire need of upgrades, and we met with many different contractors for estimates. Young from New Life Construction left the best impression by far, from his professionalism, renovation ideas and design, reasonable pricing, etc. I am so glad we decided to go with New Life as...
NEW LIFE CONSTRUCTION
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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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Top-Rated Dishwasher installation pros in Los Alamitos - Updated Nov 2026

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Dishwasher Installation FAQs, answered by experts

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.

Professional services ensure correct installation, verify water-tight seals, and safely address plumbing and electrical connections in dishwashers.

Yes, a dishwasher needs an air gap to prevent backflow. Additionally, in many locations, air gaps or another measure to prevent backflow are required for building code compliance. There are alternatives to an air gap, like a Studor vent or a loop and trap design, but an air gap is the simplest and most popular solution.

The correct water temperature for your dishwasher depends on the washing phase. When water enters the machine, it should be around 120 degrees Fahrenheit, but no hotter than 150 degrees. During the wash cycle, the machine will heat the water to between 130 and 140 degrees. If your dishwasher has a sanitizing cycle, the water can reach a temperature of up to 180 degrees.

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 Los Alamitos, CA homeowners’ guide to dishwasher installation services

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