Why Your Dishwasher Isn’t Cleaning Properly (and How to Fix It)

A dishwasher is a convenient kitchen appliance designed to take the hassle out of cleaning dishes. But when your dishwasher isn’t doing its job properly, it can leave you with dirty plates, cloudy glasses, and plenty of frustration. If you’ve noticed that your dishwasher isn't cleaning as it should, there could be a few common culprits behind the problem. Here’s what to look out for and how to get your dishwasher back to working order.

Common Causes of Poor Cleaning Performance

There are several reasons why your dishwasher might not be cleaning effectively. One of the most frequent issues is a clogged or dirty filter. If the filter is blocked with food debris, grease, or grime, water can’t circulate properly, which reduces cleaning efficiency. Another possible cause could be hard water deposits that build up in the spray arms or around the dishwasher’s water inlet, affecting how well water flows to clean your dishes.

Detergent buildup is another common problem. Over time, detergent can accumulate in the dispenser, leaving a sticky residue that prevents the door from opening fully during the wash cycle. Using too much or the wrong type of detergent can also lead to poor cleaning results.

Tips to Get Your Dishwasher Cleaning Again

If your dishwasher is underperforming, don’t worry—you can usually fix the problem yourself with a few simple steps. Start by checking and cleaning the dishwasher filter. Most dishwashers have a removable filter located at the bottom of the machine. Take it out, rinse it thoroughly under running water, and remove any trapped food particles. Cleaning the spray arms is also important. If they’re clogged with food or hard water deposits, you can usually clear them with a toothpick or by soaking them in a vinegar solution.

Next, check the detergent dispenser for buildup. Give it a good cleaning and ensure you’re using the right type of detergent for your machine. If you live in an area with hard water, consider using a dishwasher cleaner or adding a water softener to your system to help reduce mineral deposits.

When to Call in a Professional

While many dishwasher issues can be fixed with basic maintenance, some problems require professional help. If you’ve tried cleaning the filter, spray arms, and detergent dispenser but the dishwasher still isn’t cleaning properly, it could be a more complex issue such as a faulty pump, motor, or electrical component. In these cases, it’s best to call in a technician to diagnose and repair the problem.

Keep Your Dishwasher in Top Shape

To prevent future problems, it’s a good idea to perform regular maintenance on your dishwasher. Clean the filter and spray arms regularly, use the right amount of detergent, and run a cleaning cycle with a dishwasher cleaner every few months. By keeping up with these simple tasks, you can ensure your dishwasher continues to clean your dishes thoroughly for years to come.