Reasons Dishwashers Clog

If you live in Katy, TX and have problems with your dishwasher, Mr. Rooter of Katy can come and fix the problem. There are many reasons why dishwashers get clogged. Knowing the reasons for a clogged dishwasher and how to prevent the clogs may help you avoid repairs or emergency plumbing service calls in the future.

A Clogged Drain

The reason a drain clogs is a sewer line problem, or there is sludge build-up somewhere in the pipe closer to the dishwasher. Finding the clog and cleaning it out is usually a job for a professional. If there is debris in the drain and it is close to the dishwasher, this is something that happens over an extended period. Scraping dishes before loading the dishwasher can help you avoid a clog.

Garbage Disposal

A frequent problem with a dishwasher not draining is the garbage disposal knockout plug. If a garbage disposal is installed and this plug isn’t removed, the dishwasher will not drain. Once the plug is removed, the dishwasher will drain again.


The drain filter is in the bottom of the inside of the dishwasher. It can get clogged with food and stop the dishwasher from draining properly. If you remove the bottom dish rack, you should see the filter and be able to remove it to clean it. Rinse it out and replace it to see if that helps your dishwasher drain properly.

A Sewer Line Problem

The problem with your dishwasher may be a bigger problem than you initially thought. To determine if you have a damaged or clogged sewer line, listen for gurgling in your other pipes. If you have a slow drain in other places in your home, or your toilet is overflowing, you could have an issue with your main sewer line.

If you have a problem with the plumbing at your home in Katy, TX, call Mr. Rooter to make sure that we get the problem fixed promptly. We offer emergency services, plumbing help, and we can repair your sewer line if that ends up being the problem.

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