10 Dishwasher Cleaning Tips to Keep It Running Like New

Discover 10 simple dishwasher cleaning tips to remove grease, eliminate odors, prevent buildup, and keep your dishwasher working efficiently for years.

DIY

7/5/20263 min read

a yellow rubber duck sitting in a dishwasher
a yellow rubber duck sitting in a dishwasher

Your dishwasher works hard every day, removing food residue, grease, and stains from your dishes. Over time, however, food particles, soap scum, hard water deposits, and grease can build up inside the appliance. This buildup can lead to unpleasant odors, poor cleaning performance, and even costly repairs.

The good news is that regular maintenance only takes a few minutes and can significantly extend the life of your dishwasher. Follow these 10 dishwasher cleaning tips to keep it fresh, efficient, and performing at its best.

1. Clean the Filter Regularly

The dishwasher filter catches food particles to prevent them from clogging the drain.

How to Clean It

  • Remove the bottom rack.

  • Twist and lift out the filter according to your owner's manual.

  • Rinse it under warm running water.

  • Use a soft brush to remove stuck-on debris.

  • Reinstall the filter securely.

Cleaning the filter every two to four weeks helps improve washing performance and prevents unpleasant odors.

2. Wipe Down the Door and Gasket

Food residue and moisture often collect around the dishwasher door and rubber gasket.

Use a damp microfiber cloth with a little mild dish soap to clean:

  • Door edges

  • Rubber seal

  • Door handle

  • Control panel

Keeping these areas clean helps prevent mold and mildew growth.

3. Run a Hot Cleaning Cycle with White Vinegar

White vinegar helps dissolve grease, soap scum, and mineral deposits.

Steps

  • Place a dishwasher-safe cup filled with white vinegar on the top rack.

  • Run the hottest wash cycle with the dishwasher empty.

  • Skip the detergent during this cleaning cycle.

This simple method helps freshen the interior and remove light buildup.

4. Freshen with Baking Soda

After the vinegar cycle, sprinkle about one cup of baking soda across the bottom of the dishwasher.

Run a short hot-water cycle.

Baking soda helps:

  • Remove lingering odors

  • Brighten the interior

  • Break down light stains

5. Clean the Spray Arms

Spray arms distribute water throughout the dishwasher.

Mineral deposits and food particles can clog the tiny holes, reducing cleaning performance.

What to Do

  • Remove the spray arms if your model allows.

  • Rinse them under warm water.

  • Use a toothpick or soft brush to clear blocked holes.

  • Reinstall them securely.

Clean spray arms ensure even water distribution.

6. Inspect the Drain Area

Small food scraps can collect around the drain at the bottom of the dishwasher.

With the power turned off and the appliance cool, remove any visible debris carefully.

Keeping the drain clear helps prevent standing water and drainage issues.

7. Use the Right Amount of Detergent

Using too much detergent can leave residue on dishes and inside the dishwasher.

Follow the detergent manufacturer's instructions and adjust the amount if you have soft or hard water.

Using the proper amount improves cleaning results while reducing buildup.

8. Refill the Rinse Aid Dispenser

Rinse aid helps water sheet off dishes, reducing water spots and improving drying performance.

Check the dispenser regularly and refill it when needed.

This is especially helpful in areas with hard water.

9. Clean the Exterior

Don't overlook the outside of your dishwasher.

Wipe down:

  • Control panel

  • Door

  • Handle

  • Side edges

Use a soft cloth and a cleaner appropriate for your dishwasher's finish. For stainless steel models, wipe in the direction of the grain for a polished appearance.

10. Schedule Monthly Deep Cleaning

A monthly deep clean helps prevent major problems before they start.

Your monthly routine can include:

  • Cleaning the filter

  • Running a vinegar cycle

  • Using baking soda

  • Wiping the door gasket

  • Inspecting the spray arms

  • Checking the drain for debris

A consistent routine keeps your dishwasher operating efficiently year-round.

Common Dishwasher Cleaning Mistakes

Avoid these mistakes to protect your appliance:

  • Skipping filter cleaning

  • Overloading the dishwasher

  • Using too much detergent

  • Ignoring unpleasant odors

  • Blocking the spray arms with large dishes

  • Forgetting to clean the door gasket

  • Allowing food scraps to accumulate in the drain

Signs Your Dishwasher Needs Cleaning

Your dishwasher may need attention if you notice:

  • Unpleasant odors

  • Cloudy glasses

  • Food residue on dishes

  • Standing water inside

  • Longer wash cycles

  • White mineral deposits

  • Poor drying performance

Cleaning the appliance promptly can often restore normal performance.

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