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Writer's pictureJohn Robin

Why does my dishwasher smell?

If you notice an unpleasant odor coming from your dishwasher, several factors could be contributing to the problem. Here are some common reasons why your dishwasher may smell:

  1. Food Residue: Food particles and debris can accumulate in the dishwasher's filter, spray arms, and other hidden areas. When left uncleaned, these residues can start to decay, resulting in a foul smell.

  2. Clogged Drain: A clogged or partially blocked dishwasher drain can trap water and food particles, leading to odor buildup. It's essential to regularly check and clean the dishwasher drain to prevent this issue.

  3. Improper Loading: Overloading the dishwasher or placing dishes with excess food scraps can hinder proper water circulation and drainage. This can cause stagnant water and unpleasant odors to develop.

  4. Standing Water: If there is standing water at the bottom of your dishwasher after a cycle, it may indicate a drainage issue. Stagnant water can become a breeding ground for bacteria, resulting in foul smells.

  5. Mold and Mildew: The warm and moist environment inside the dishwasher can promote the growth of mold and mildew. These fungal growths can release unpleasant odors and may require thorough cleaning to eliminate them.

  6. Old or Dirty Filters: Dishwasher filters are designed to trap food particles and debris. If these filters become clogged or dirty, they can contribute to odor buildup. Regularly cleaning or replacing the filters is necessary to prevent this issue.

To address the unpleasant smell in your dishwasher, try the following remedies:

  1. Clean the Filter: Remove and clean the dishwasher's filter according to the manufacturer's instructions. This will help remove trapped food particles and prevent odor.

  2. Check the Drain: Ensure the dishwasher drain is clear of debris and unclogged. Use a pipe cleaner or a toothpick to remove any blockages.

  3. Run a Vinegar Cycle: Place a cup of white vinegar in a dishwasher-safe container on the top rack of your empty dishwasher. Run a hot water cycle to help eliminate odors and disinfect the dishwasher.

  4. Use Baking Soda: Sprinkle baking soda along the bottom of the dishwasher and let it sit for a few hours or overnight. Then, run a hot water cycle to help neutralize odors.

  5. Keep the Dishwasher Dry: After each cycle, prop the dishwasher door open slightly to allow air circulation and prevent moisture buildup.

By following these steps and maintaining proper dishwasher hygiene, you can help eliminate odors and keep your dishwasher smelling fresh. If the issue persists, it's advisable to consult the dishwasher's manufacturer or seek assistance from a professional appliance repair service.

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