How to Fix Dishwasher Smell: A Simple Guide to a Fresh Kitchen

Dishwashers are a blessing for busy households and businesses alike. They save time and effort, leaving your dishes sparkling clean. But what happens when your dishwasher starts to smell unpleasant? That musty or sour odour can be off-putting and make you question the cleanliness of your appliance. Fortunately, fixing dishwasher smell is easier than you might think. I’m here to walk you through practical steps to get your dishwasher smelling fresh again.

Why Does My Dishwasher Smell?

Before diving into the fixes, it helps to understand why your dishwasher smells in the first place. The most common causes include:

• Food debris trapped inside: Bits of food can get stuck in the filter, spray arms, or door seals.

• Standing water: Water that doesn’t drain properly can become stagnant and smelly.

• Mould and mildew growth: Damp, warm environments are perfect for mould to thrive.

• Clogged or dirty filters: Filters that aren’t cleaned regularly trap grime and cause odours.

• Blocked drain hose: This can cause water to back up and create a foul smell.

  
  

Knowing these causes helps you target the right areas when cleaning your dishwasher.

Step-by-Step Dishwasher Smell Fix

Here’s a clear, logical approach to eliminating dishwasher odours. Follow these steps carefully for the best results.

1. Clean the Filter and Drain Area

The filter is a common culprit for bad smells. It traps food particles and grease, which can rot over time.

• Remove the bottom rack to access the filter.

• Take out the filter and rinse it under hot water.

• Use a soft brush or old toothbrush to scrub away stubborn debris.

• Check the drain area for any trapped food and clean it out.

  
  

Cleaning the filter regularly prevents build-up and keeps your dishwasher smelling fresh.

2. Inspect and Clean the Spray Arms

Spray arms can get clogged with food particles or mineral deposits.

• Remove the spray arms if your model allows.

• Rinse them under warm water.

• Use a toothpick or small brush to clear any blocked holes.

• Reinstall the spray arms securely.

  
  

This ensures water sprays properly and prevents stagnant water pockets.

Cleaning dishwasher spray arms to remove blockages

3. Run a Cleaning Cycle with Vinegar or Dishwasher Cleaner

A cleaning cycle helps remove grease, limescale, and odours inside the dishwasher.

• Place a cup of white vinegar in a dishwasher-safe container on the top rack.

• Run a hot water cycle without any dishes.

• Alternatively, use a commercial dishwasher cleaner following the instructions.

  
  

Vinegar is a natural deodoriser and disinfectant that breaks down grime and kills bacteria.

4. Wipe Down Door Seals and Interior Surfaces

Food and moisture can accumulate in the door seals and corners.

• Use a damp cloth with mild detergent to wipe the rubber seals.

• Pay attention to crevices where mould can grow.

• Dry the seals thoroughly after cleaning.

  
  

Keeping these areas dry and clean prevents mould and mildew build-up.

5. Check and Clear the Drain Hose

A blocked drain hose can cause water to pool and smell.

• Locate the drain hose behind your dishwasher.

• Disconnect it carefully (have a bucket ready for water).

• Use a long flexible brush or run water through it to clear blockages.

• Reconnect the hose securely.

  
  

If you’re unsure about this step, it’s best to call a professional to avoid damage.

Preventing Dishwasher Smell in the Future

Once your dishwasher smells fresh, you want to keep it that way. Here are some easy habits to adopt:

• Scrape off food scraps before loading dishes to reduce debris inside.

• Run the dishwasher regularly to prevent stagnant water.

• Use hot water cycles to kill bacteria.

• Clean the filter monthly.

• Leave the door slightly open after cycles to air out moisture.

• Use dishwasher-safe cleaning agents periodically.

  
  

These simple steps help maintain a clean, odour-free dishwasher.

Leaving dishwasher door open to prevent moisture build-up and odours

When to Call a Professional for Dishwasher Smell Fix

Sometimes, despite your best efforts, the smell persists. This could indicate a deeper issue such as:

• Faulty drain pump

• Internal plumbing problems

• Electrical faults affecting drainage

• Severe mould infestation

  
  

In these cases, it’s wise to contact a reliable appliance repair service. They can diagnose and fix the problem quickly, often on-site, saving you time and hassle. A professional repair ensures your dishwasher works efficiently and smells fresh again.

If you’re in South Africa and need expert help, consider reaching out to the RePair Team. They specialise in quick, affordable appliance repairs with guaranteed workmanship.

Enjoy a Fresh-Smelling Dishwasher Every Day

A dishwasher that smells clean and fresh makes your kitchen a more pleasant place. By following these straightforward steps, you can fix dishwasher smell issues yourself and keep them from coming back. Regular maintenance and a little care go a long way.

Remember, if the problem is stubborn or complicated, professional help is just a call away. Keeping your dishwasher in top shape means cleaner dishes and a happier home or business environment.

Happy washing!