LG Washing Machine: mold growth, leaking

Professional Repair Guide

What is this symptom?

Experiencing mold growth and leaking in your LG washing machine? Common signs include dark spots around the door gasket, a musty odor, and water pooling during wash cycles. These issues often stem from mold buildup, a damaged door gasket, or clogged detergent dispensers. Addressing these problems promptly can prevent further damage and ensure your washer operates efficiently.

Urgency: Medium

Important Tips for LG Models

  • LG official guidance emphasizes cleaning door gasket and dispenser and notes that gasket cleaning is not a warranty service.

Possible Causes

Mold and residue buildup on door gasket and interior

How to Identify: Visual mold spots around gasket, musty smell, black residue in folds of rubber gasket

Part: Door gasket and drum interior

Damaged or worn door gasket allowing leaks

How to Identify: Visible cracks, tears, or deformed gasket; water pooling at front of machine

Part: Door gasket

Detergent drawer or dispenser buildup causing overflow leaks

How to Identify: Residue buildup in drawer, leaking from drawer area during wash

Part: Detergent dispenser drawer

Loose or cracked inlet or drain hoses

How to Identify: Leaks from back or bottom of washer, visible wet hoses, loose clamps

Part: Water inlet hoses, drain hose

Clogged or improperly seated drain pump filter or pump leaks

How to Identify: Water near bottom front, slow drain cycles, debris in filter

Part: Drain pump filter, pump assembly

DIY Solutions

Clean Mold from Door Gasket

Moderate 20-40 minutes
Tools Needed: rubber gloves, soft cloth, vinegar or LG-approved cleaner
  1. Pull back gasket folds to expose spots
  2. Spray vinegar or mild cleaning solution on moldy spots
  3. Wipe thoroughly and dry gasket folds
  4. Leave door open to air dry
⚠️ Safety First: Wear gloves, ensure good ventilation

Clean Detergent Dispenser and Tub

Easy 30-60 minutes
Tools Needed: warm water, soft brush, vinegar or washing machine cleaner
  1. Remove detergent drawer
  2. Soak and scrub with warm water and brush
  3. Wipe dispenser cavity inside washer
  4. Run tub clean cycle with washer cleaner or vinegar
⚠️ Safety First: Unplug machine before cleaning

Inspect and Tighten Hoses

Moderate 15-30 minutes
Tools Needed: adjustable pliers
  1. Unplug washer and turn off water supply
  2. Pull washer from wall to access hoses
  3. Check inlet and drain hose connections
  4. Tighten clamps and replace damaged hoses
⚠️ Safety First: Avoid overtightening which can damage fittings

Next step

Choose the next step for mold growth, leaking

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Door Gasket

Creates a watertight seal around the door to prevent leaks during operation.

Typical part-only price
$45 - $110
DIY difficulty
Medium
Estimated time
30-60 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Detergent Dispenser

Releases detergent, bleach, or rinse aid at the correct moment in the cycle.

$30 - $70 · Easy · 15-30 mins

Check fit & price
Possible related component

Drain Hose

Carries waste water from the drain pump to your home's standpipe or sink drain.

$15 - $30 · Easy · 15-30 mins

Check fit & price
Possible related component

Drain Pump

Pumps waste water out of the appliance during the drain cycle.

$35 - $80 · Easy · 15-30 mins

Check fit & price
Model number required

Model-compatible Washing Machine parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Washing Machine Cleaner Tablets

Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.

View maintenance supply
Maintenance supply

Braided Washer Inlet Hoses

A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.

View maintenance supply
Maintenance supply

Washer Drain Hose Holder

Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Professional Repairs

Replace Damaged Door Gasket

Estimated Cost: $50 - $150 for part

Repair/Replace Drain Pump or Internal Hose

Estimated Cost: $100 - $300

Service Water Inlet Valves/Hoses

Estimated Cost: $80 - $200

When to Call a Professional

Leak persists after cleaning and hose tightening
Visible damage to internal components or gasket
Water leaks from bottom front/back of machine
Uncertain source of leak after DIY inspection

Preventive Maintenance

  • Leave door and detergent drawer open after use: Mold growth and musty odor
    Frequency: After each use
  • Run tub clean cycle: Mold and residue buildup
    Frequency: Monthly
  • Check and clean drain pump filter: Clogs and potential leaks
    Frequency: Monthly

Frequently Asked Questions

Why is my LG Washing Machine mold growth, leaking?
Common causes include mold buildup on the door gasket, damaged gaskets, and clogged detergent dispensers.
How do I fix LG Washing Machine mold growth, leaking myself?
Clean the door gasket and detergent dispenser, and inspect hoses for leaks. Use vinegar for mold removal.
How much does it cost to fix mold growth, leaking?
Repair costs can range from $50 to $300 depending on whether you need to replace the door gasket or the drain pump.
When should I call a technician for mold growth, leaking?
Call a technician if DIY fixes don’t resolve the issue or if you're unsure about inspecting internal components.

References & Sources

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Mold growth due to moisture accumulation in the door seal
  • Clogged or damaged drain pump causing leaks
  • Improper detergent use leading to excessive suds and leaks

User Suggested Solutions

  1. Clean the rubber door seal with a mixture of vinegar and water. Wipe thoroughly to remove mold and moisture. Ensure the door is left open after use to dry out.

  2. Inspect and clear the drain pump filter. If damaged, replace the drain pump to stop leaks.

  3. Switch to a high-efficiency (HE) detergent and use the correct amount to prevent excessive suds that can lead to leaks.

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Need new washer/dryer

Community Discussions

mold issues around the rubber seal, leaking water

Replace the door seal or clean the mold with a specific product.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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