Washer Smells Moldy

Quick answer

A moldy smell in your washer usually indicates a buildup of mildew or mold. Start by running a cleaning cycle with hot water and a washer cleaner or bleach. Leave the door open between uses to promote drying. If the smell persists, inspect and clean the seals and dispensers.

Confirm the symptom

• Musty or moldy smell when opening the washer door.
• Visible mold or mildew on seals, dispensers, or inside the drum.
• Clothes have a moldy smell even after washing.
• Washer is not drying clothes completely.

Tools and prep

• Washer cleaner or bleach
• White vinegar
• Baking soda
• Scrub brush
• Microfiber cloth
• Gloves
• Safety glasses
• Ensure the washer is unplugged and water supply is turned off.
• Ventilate the area where the washer is located.

Step-by-step troubleshooting

1. Run a Cleaning Cycle
   Do: Pour 2 cups of white vinegar into the detergent dispenser and run a hot water cycle. Alternatively, use a washer cleaner or 1 cup of bleach.
   Observe: Check if the smell improves after the cycle.
   Means: The cleaning cycle helps to kill mold and remove odors.
   Next: If the smell persists, proceed to the next step.
2. Clean the Seals
   Do: Wipe down the door seals with a cloth dampened with vinegar or a bleach solution. Use a scrub brush to remove any mold or mildew.
   Observe: Look for any remaining mold or mildew.
   Means: Cleaning the seals prevents mold from spreading.
   Next: If mold is present in other areas, continue cleaning.
3. Clean the Dispensers
   Do: Remove detergent and fabric softener dispensers and soak them in a vinegar solution. Scrub and rinse thoroughly.
   Observe: Check for any remaining residue or mold.
   Means: Clean dispensers ensure that detergent and softener are not contributing to the mold problem.
   Next: If the smell persists, check the drain pump filter.
4. Check the Drain Pump Filter
   Do: Locate and clean the drain pump filter according to your washer's manual. Remove any debris or mold.
   Observe: Ensure the filter is clean and free of obstructions.
   Means: A clogged filter can cause water to remain in the washer, promoting mold growth.
   Next: If the problem continues, inspect the washer's hoses.
5. Inspect the Hoses
   Do: Check the water inlet and drain hoses for any leaks or blockages. Replace if necessary.
   Observe: Look for any signs of water damage or mold.
   Means: Leaking hoses can introduce moisture, leading to mold growth.
   Next: If hoses are fine, consider running another cleaning cycle.
6. Leave the Door Open
   Do: After each use, leave the washer door open to allow air to circulate and dry out the interior.
   Observe: Ensure the washer is dry before closing the door.
   Means: Proper ventilation helps prevent mold growth.
   Next: If the smell returns, repeat the cleaning process.

Common causes

Parts matching

While cleaning can often resolve the issue, sometimes replacing parts is necessary.

• Washer cleaner or bleach
• White vinegar
• Baking soda
• New drain pump filter (if clogged)
• New water inlet or drain hoses (if leaking)
• Door seals (if damaged or heavily moldy)

Always ensure parts are compatible with your specific washer model.

When to call a professional

• If the mold smell persists after multiple cleaning attempts.
• If you find extensive mold growth that you cannot clean yourself.
• If the washer has structural damage or leaks that you cannot fix.
• If the washer is under warranty and you want to avoid voiding it.
• If you are not comfortable performing the repairs yourself.

FAQ

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