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 Pomona, CA

*The Angi rating for Dishwasher Installation companies in Pomona, 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 Pomona, 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 06, 2026

Reviewed in May 2026
"Excellent service! The technician from AML helped me resolve my dishwasher issues quickly. Their advice was spot on and took care of the problem immediately. Professional, honest, and very helpful!"
AML SERVICE
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Reviewed in September 2025
Cost was low and installers were very professional.
Felikian's Carpet/National Flooring Outlet
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Reviewed in November 2024
Needed a kitchen sink replaced. Had a setback due to my bad measurement of the new sink, but Wesley worked through it and and did a great install
Rapid Rescue Rooter & Plumbing
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Reviewed in April 2024
Richard was a great resource and adviser. The technician on my job was Vince and he was masterful. This was a new dishwasher where one never existed before. The craftmanship was superb. Excellent problem solvers . I am extremely pleased with this company and it's team.
Appliance Pros and Plumbing
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Reviewed in January 2024
Very responsive and great service. Would definitely recommend for dishwasher repair.
MDTECH Appliance Repair
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Reviewed in September 2022
First class installation. We'll equipped and knowledgeable installers.
LT Generators
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Reviewed in June 2022
Morgan was professional and on time. Fast work, new patio screen door installed same day in about 15 minutes. Highly recommend!
Original Screens Glass and Doors
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Reviewed in November 2021
Lighting installed professionally and cleaned.
Nino and sons handyman service
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Reviewed in October 2021
John did a great job! He installed a circuit branch from our breaker to our new electric cooktop, and did it all in an afternoon. He even offered to vacuum some of the debris the installation team left behind earlier in the day. Very professional and efficient!
Green Electric Solutions
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Reviewed in August 2021
This company did a very good jop installing a new water heater and did not leave a mess for me to clean.
Jedi Plumbing Home Services
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Top-Rated Dishwasher installation pros in Pomona - 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.

A dishwasher filter should be replaced every five years, depending on the manufacturer's recommendations and the frequency of use. The exact timing can vary based on factors such as the hardness of your water, how well you rinse dishes before loading them, and how often you clean the filter. Regularly inspect the filter for signs of wear and tear or damage. If the filter appears worn out, damaged, or excessively clogged despite regular cleaning, it should be replaced sooner.

Yes, if your filter is damaged or simply too debris-filled to be of use, replace it with a new component. Check the instruction manual that accompanied the dishwasher for information as to the specific part. There are many online marketplaces that sell these parts, but perform due diligence to ensure you buy the right one.

Repair costs vary by issue, typically from $100 to $500, depending on the parts needed and labor involved.

Maintenance includes regular filter cleaning, checking water connections, and ensuring that the unit operates at optimal efficiency without blockages.

The Pomona, 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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