Why Does My Washing Machine Smell Like Wet Dog? Causes and Solutions

Quick Answer

A washing machine that smells like wet dog is usually caused by trapped pet hair, moisture, and detergent residue creating a breeding ground for bacteria. To fix it, clean the machine with a washing machine cleaner, remove pet hair from the drum and gasket, and run a hot water cycle. For persistent odors, use a specialized cleaner like Uproot Washing Machine Cleaner Pro.

You open the washer after a cycle, expecting fresh laundry, but instead you're hit with a musty, wet-dog smell. It's a common problem for pet owners, and it's not just unpleasant—it can transfer that odor to your clothes. The good news is that with the right approach, you can eliminate the smell and prevent it from coming back.

In this guide, we'll walk you through the causes of that odor, step-by-step solutions to get your washer smelling fresh again, and how to keep it that way.

Why Your Washing Machine Smells Like Wet Dog

Pet hair and dander are the primary culprits. When you wash pet bedding or clothes covered in fur, hair can cling to the drum, gasket, and detergent drawers. Over time, this hair, combined with moisture and detergent residue, creates a biofilm where bacteria and mold thrive. That's the source of the wet-dog smell.

Another factor is the front-loading washer's design. The rubber gasket and door seal can trap water and debris, especially if you leave the door closed between loads. This creates a damp, dark environment perfect for odor-causing microbes.

• Always check pockets and shake out pet bedding before washing to reduce hair in the drum.
• Leave the washer door open after a cycle to allow moisture to evaporate.

Step-by-Step Solutions to Eliminate the Odor

Start by manually removing any visible pet hair from the drum, gasket, and detergent drawer. Use a damp cloth or a vacuum with a crevice tool. This step is crucial because hair left behind will continue to cause odors.

Next, run a cleaning cycle with a washing machine cleaner. Follow the product instructions, but typically you'll add the cleaner to the detergent dispenser and run a hot, empty cycle. This helps break down residue and kill bacteria.

If the smell persists, you may need to clean the rubber gasket and door seal separately. Use a solution of equal parts water and white vinegar, and wipe down all surfaces. For tough buildup, use an old toothbrush to scrub crevices.

• Run a monthly maintenance cycle with a washing machine cleaner to prevent future odors.
• Consider using a pet hair remover tool like the Uproot Cleaner to remove hair from laundry before washing.

Preventing Future Wet Dog Smells

Prevention is key. After each wash, leave the door open for at least an hour to let the interior dry. Also, remove laundry promptly to avoid dampness sitting in the drum.

Make it a habit to clean the detergent drawer and gasket monthly. And consider using a washing machine cleaner with enzymes that break down pet residue.

• Wipe down the door gasket after each load to remove moisture and hair.
• Use a pet hair remover on laundry before washing to minimize hair entering the machine.

Diagnosis: Identify and Fix the Problem

• Symptom: Musty, wet-dog odor coming from the washing machine, especially after washing pet items. Confirm the smell is present and not from clothes.
• Likely Cause: Pet hair, moisture, and detergent residue creating biofilm in the drum, gasket, or detergent drawer. Inspect these areas for visible hair and buildup.
• Corrective Action: Remove visible hair, run a cleaning cycle with a washing machine cleaner like Uproot Washing Machine Cleaner Pro, and wipe down the gasket. If the smell persists after cleaning, consider a deeper clean or professional service.
• Stop or Choose Another Option: If the odor remains after multiple cleanings, there may be a mechanical issue or mold in inaccessible parts. At this point, consult a professional or consider replacing the machine. Do not continue using harsh chemicals; seek expert help.

Product Facts: Uproot Washing Machine Cleaners

• Uproot Washing Machine Cleaner: Available in multiple sizes and styles, with a catalog price of USD 8.40 (compare at USD 29.99). This cleaner is an affordable, effective way to deep-clean your washer and remove pet odors.
• Uproot Washing Machine Cleaner Pro: Catalog price USD 6.44 (compare at USD 22.99), with options for style and size. The Pro version offers a budget-friendly option for regular maintenance to keep your washer fresh.

A wet-dog-smelling washing machine is a common but fixable problem. By regularly cleaning your washer with a quality product like the Uproot Washing Machine Cleaner and following preventive habits, you can keep your laundry fresh and your machine odor-free. Start by trying the Uproot Washing Machine Cleaner Pro for an effective and affordable solution.