How to Fix a Moldy Dishwasher and Keep It Smelling Fresh

If you’ve noticed black spots, bad odor, or slimy buildup in your dishwasher, follow this step-by-step guide to clean it and prevent mold from returning.

Step-by-Step Cleaning Instructions

1. Remove Racks & Filter

   • Take out the bottom rack.
   • Carefully remove the filter.
   • Scrub filter with warm soapy water and a soft brush to remove food debris and mold.

2. Clean Spray Arms

   • Remove spray arms if possible.
   • Rinse under hot water.
   • Use a toothpick or small brush to unclog blocked holes.

3. Clean Door Seal & Edges

   • Use a cloth soaked in white vinegar, or a mix of vinegar and baking soda.
   • Focus on the rubber gasket and edges, which often trap moisture and mold.

4. Run a Vinegar Wash

   • Place a cup of white vinegar in a dishwasher-safe bowl on the top rack.
   • Run a hot water cycle (with the dishwasher empty) to kill mold and remove odors.

5. Run a Baking Soda Cycle

   • Sprinkle 1 cup of baking soda over the bottom of the machine.
   • Run a short, hot water cycle to freshen and remove remaining residue.

6. Dry Out Dishwasher

   • Leave the dishwasher door slightly open for a few hours after cleaning. This prevents moisture buildup and future mold.

Maintenance Tips for a Mold-Free Dishwasher

• Run the dishwasher regularly.
• Clean the filter monthly.
• Check for and remove food particles after each wash.

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