Why Your Dishwasher Smells (and How to Fix It)

Does your dishwasher still smell weird even after running a cycle? You're not alone. Many people experience lingering odors coming from their dishwasher — often caused by hidden residue or trapped moisture in areas you don’t typically clean.

Here’s what might be causing the odor — and how to fix it fast.

1. Trapped Food Residue

Over time, bits of food can collect in your dishwasher's filter, spray arms, and drain. These organic materials start to break down and create unpleasant smells.

Fix it: Remove the filter, rinse it under hot water, and scrub with a brush. Make it a habit every 1–2 weeks.

2. Dirty Rubber Seals

The rubber lining around your dishwasher door is designed to keep water in — but it also collects moisture and grease. This is a common spot for dark discoloration or odor.

Fix it: Use a gel-based cleaner and a cloth to clean all around the door seal. Be sure to get into the folds and corners.

3. Standing Water or Poor Drainage

A partially clogged drain can leave water sitting at the bottom of your dishwasher, leading to musty smells.

Fix it: Run a cleaning cycle with hot water and white vinegar. Check the drain for clogs or slow flow.

4. Hard Water Buildup

Mineral deposits from hard water can coat your dishwasher’s interior and trap smells.

Fix it: Use a dishwasher-safe descaler or run an empty hot cycle with lemon juice or a descaling product monthly.

Prevention Tips:

• Always scrape off food before loading dishes.
• Keep the door slightly open after use to air out moisture.
• Wipe down the rubber seal every few days.
• Clean the filter regularly.

By maintaining these often-ignored areas, your dishwasher can stay fresh, odor-free, and run more efficiently.