Why Does My Dishwasher Smell?

If your dishwasher smells unpleasant, it’s usually due to a buildup of food debris, grease, or soap residue trapped in hidden areas. Over time, these particles break down and cause foul odours — but the good news is, it’s an easy fix.

Common Causes of Dishwasher Odours

• Trapped food particles in the filter, spray arms, or drain area
• Bacteria or mould growth from standing water
• Grease or detergent residue on internal surfaces
• Using the dishwasher infrequently or keeping the door closed when damp

How to Eliminate the Smell

• Remove and clean the filter The dishwasher filter traps food and debris to prevent clogging — clean it weekly for best results. thoroughly under hot, soapy water
• Wipe the door seals, walls, and drain area with a damp cloth and mild detergent
• Run an empty hot cycle with a cup of white vinegar on the top rack to break down grease
• Follow with a short cycle using bicarbonate of soda to neutralise odours
• Leave the door slightly open after each wash to allow air circulation

Preventing Future Smells

Regular maintenance is key. Clean the filter weekly, remove leftover food from dishes before loading, and run a hot cleaning cycle once a month. This helps prevent bacterial buildup and keeps your dishwasher smelling fresh.

When to Seek Professional Help

If odours persist even after cleaning, there may be a drainage issue or a problem with the inlet hose. In that case, it’s best to have a qualified engineer inspect the appliance.