Troubleshooting Mold on Your Washer Door Gasket

By Fix4U Team
Washing Machine, Laundry Appliances

Mold buildup on your washer’s door gasket is a common issue that many homeowners face. The damp, dark environment inside your washing machine provides an ideal breeding ground for mold. Prolonged mold growth can damage your washer’s rubber gasket and lead to other problems.

In this comprehensive guide, we’ll explore the causes of washer gasket mold and provide actionable tips to remove mold and prevent its return.

What Causes Mold on The Washing Machine Gasket?

Before we get into fixing the issue, let’s first understand what leads to mold growth in the first place.

Moisture – The damp interior of a washer, especially around the door opening, promotes mold growth. Small amounts of water get trapped in the folds of the rubber gasket providing moisture for mold to thrive.

Detergent Residue – Leftover detergent, fabric softener and soil from dirty clothes also contribute to mold growth. Detergent residue sticks to the rubber gasket providing food for mold.

Lack of Circulation – Lack of air circulation within the washer tub creates a humid environment, perfect for mold. The stationary periods between wash cycles allow uncontrolled mold growth.

Type of Detergent – Liquid detergents tend to stick and accumulate more than powder detergents. Their high residue promotes more mold growth.

Old Gasket – An older worn out gasket is more prone to developing cracks and folds ideal for trapping moisture and detergent leading to increased mold.

Washing Frequency – Infrequent washing provides longer stationary periods for unchecked mold growth.

Now that you know what causes gasket mold, let’s look at the step-by-step process to thoroughly clean mold from the washer gasket and prevent its return.

Fix4U Repairs' Technicians Fixing  Mold On Washing Machine Door Gasket Problem In Gta

How To Remove Mold From Washer Gasket?

Removing mold involves killing existing mold, eliminating the root cause and preventing regrowth. Follow these steps to clean your washer gasket and maintain it mold-free.

Step 1: Clean The Gasket With Vinegar

White distilled vinegar is a natural antiseptic that can kill up to 82% of mold species. Due to its low acidity, it is safe for cleaning rubber gaskets.

Follow these steps to clean your washer gasket with vinegar:

  • Mix equal parts vinegar and water. For tough stains, use undiluted vinegar.
  • Dip a non-abrasive sponge or soft brush in the vinegar solution.
  • Gently scrub the gasket crevices and folds where you see mold.
  • Make sure to scrub both sides of the gasket.
  • Let the vinegar solution sit for 15 minutes before rinsing.
  • Use an old toothbrush dipped in vinegar to scrub the gasket grooves.
  • Rinse the gasket thoroughly with water to remove all vinegar residue.

Repeat this vinegar cleaning weekly or every alternate wash to prevent mold recurrence. While effective on mild mold, vinegar may not suffice for severe accumulated mold.

Step 2: Use a Specialized Mildew Remover

Fixing Mold On Washing Machine Door Gasket Problem By Fix4U Repairs In Gta

For tough mold accumulation, specialized mildew removers are more effective and faster-acting than vinegar. Look for an EPA-registered mildew remover that can kill mold on rubber surfaces.

Follow the product instructions for maximum effectiveness:

  • Spray or apply the mildew remover directly onto stained areas.
  • Let it soak for 5-10 minutes.
  • Scrub with a soft brush until stains disappear.
  • Rinse thoroughly with clean water.

Mildew removers with active ingredients like chlorine bleach, hydrogen peroxide, or benzyl ammonium chloride provide disinfecting and bleaching action to remove stubborn mold stains.

Repeat cleaning with a mildew remover periodically for mold prevention.

Step 3: Run A Sanitizing Cycle

After manual cleaning, run a hot sanitizing cycle to kill any remaining mold spores inside the washer tub.

Here is how to run a sanitizing cycle on your washing machine:

  • Consult your machine’s manual for specific instructions.
  • Many washers have a dedicated “Sanitize” cycle option.
  • Alternatively, run a hot wash cycle (at least 120°F) with bleach or other sanitizers.
  • Make sure to wipe the gasket area with a bleach-water solution before starting the cycle.
  • Run the cycle empty or add a few towels to aid the scrubbing action.

The high temperature kills mold spores while the bleach solution sanitizes the interior. Make this a monthly habit for a mold-free washer.

Step 4: Replace Gasket If Needed

For washing machines more than 5 years old, the gasket has likely worn out. Severe cracking and tearing of the gasket provide harborage sites for mold.

In such cases, replacing the gasket altogether is needed. Here are your options:

DIY Gasket Replacement: With basic mechanical skills, you can replace the gasket yourself following the steps below:

  • Order the specific replacement gasket for your washer model.
  • Unplug the washer and turn off water supply lines.
  • Pry out the old gasket using a flathead screwdriver. Remove residue with steel wool.
  • Install the new gasket starting at the bottom using adhesive glue.
  • Press firmly along the edges for complete adhesion.
  • Reconnect water lines and power supply.

Professional Replacement: For complex gasket replacement, hire a trusted appliance repair technician. They have the expertise to source the right gasket and replace it properly ensuring leak-proof installation. The cost ranges from $200-$350 including parts and labor.

Step 5: Regular Washer Maintenance

Prevention is better than cure when it comes to appliance mold. Follow these maintenance tips to avoid gasket mold:

  • Leave the door open – After every wash, prop open the washer door to allow interior drying and prevent musty smells.
  • Clean the gasket – Periodically clean the gasket with vinegar solution or mildew remover.
  • Wipe the interior – Use a microfiber cloth soaked in bleach solution to wipe hidden mold inside the washer tub.
  • Sanitize often – Run a monthly sanitize cycle to inhibit mold growth.
  • Clean filters – Regularly clean the water inlet filters to prevent clogging and standing water.
  • Dry wet loads quickly – Don’t leave wet laundry sitting for long periods inside the washer.

Proper maintenance keeps your washer fresh and free of gasket mold.

Want a step-by-step guide to eliminate mold for good? Call Now and Fix your Washer!

When To Call A Repair Technician?

While minor mold can be removed with DIY methods, severe mold accumulation often needs professional servicing. Call an appliance repair technician if you notice the following:

  • Visible mold growing beyond the gasket onto other washer parts
  • Musty odor coming from the washer even after cleaning
  • Leaking water indicating a damaged gasket
  • Gasket has extensive cracking or holes
  • Wash quality deteriorating due to mold buildup
  • Mold symptoms return despite regular cleaning

For major mold damage, the pros have industrial-grade mold removers and tools for gasket replacement and washer restoration. Let experts handle the issue to restore your washer functionality.

Mold Prevention Tips

Implement the following tips to stop mold growth on your washer gasket:

  • Reduce Detergent Residue – Use only recommended detergent amount. Prioritize powder or pod detergents over liquid ones.
  • Dry Seal After Every Wash – Wipe the gasket area thoroughly after each load.
  • Clean With White Vinegar – Use a 50/50 mix of white vinegar and water to clean the gasket weekly.
  • Increase Ventilation – Keep the washer door ajar when not in use.
  • Sanitize Monthly – Run a high-temp sanitize or bleach cycle monthly.
  • Inspect Gasket – Check gasket for tears or damage regularly. Replace if worn out.
  • Allow Drying Time – Don’t overload the washer. Give adequate drying time between loads.

With proper maintenance and mold removal steps, you can keep your washer gasket free of mold and odors. Contact Fix4U Repairs today at (647) 363-5205 for any assistance with diagnosing and fixing your washer mold problems. Our appliance repair technicians service all major washer brands throughout GTA, Canada.

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