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 Dana Point, CA

*The Angi rating for Dishwasher Installation companies in Dana Point, 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 Dana Point, 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 February 04, 2026

Reviewed in February 2026
The installer did a nice thorough job. I did have a nice new shower room to come home to. .
Shugarman's Bath
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Reviewed in June 2025
Arrived within 20 minutes of calling and fixed dishwasher with no mess and price was very reasonable.
NaSh Appliance Group, Inc.
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Reviewed in February 2025
Huge thanks to technician Sergei for the fast and high-quality repair of our dishwasher! He has a very professional approach?quickly identified the problem, clearly explained the cause, and efficiently fixed the issue. Now the appliance works like new! Sergey is polite, punctual, and truly knows...
GS Tech Appliance Repair
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Reviewed in September 2024
He responded very quickly and came as early as possible. He did a great job for installing our new dishwasher.
Reliable Hands Appliance LLC
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Reviewed in April 2024
The kitchen was completely remodeled to include opening the wall from the kitchen to the dining room, installing an island with sink, dishwasher and cabinets, manufacturing/installation of all cabinets and drawers and installation of all electrical lighting and fixtures. Spaces and installation...
BizProBuilders Corp.
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Reviewed in March 2024
Mark and Charlie rushed right over when I called with a dishwasher leak. They were very professional, knowledgable, clean, honest and a joy to have in our home. Would 100% recommend them!
All Phases And Sons Restoration INC.
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Reviewed in November 2023
Our dishwasher started to stop in mid-cycle. The repair man came out, took our co-pay and said he'd order the part. That was last Wed and Thanksgiving is almost here. My husband called, his voicemail said to text, he texted the repairman and he said text him again in the morning. Not great...
Choice Home Warranty
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Reviewed in January 2023
Installed and tested reverses osmosis system. He was able to drill into our marble countertop and install the faucet. He did everything in about two hours. His installation was perfect.
Hague Quality Water
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Reviewed in December 2022
They were able to diagnose the problem on my Miele dishwasher and order the parts to repair it. I think other companies might have just said they couldn't fix it. I was please with their knowledge and ability to get the job done.
MDTECH Appliance Repair
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Reviewed in October 2022
We had Joe out for our kitchen demo. We had a peninsula with plumbing. They took out everything: stove, dishwasher, sink, full cabinets, carpet, tile and linoleum, all out in less than 3 hours. They even capped off our water pipes so we can keep the water on to the house till the plumber comes...
Jared Jennings Jared Jennings
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Dishwasher Installation questions, answered by experts

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

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.

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

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.

The Dana Point, 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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