LG Dishwasher: odor issue
What is this symptom?
Experiencing unpleasant odors from your LG dishwasher? Common smells include rotten food, sewer-like, or mildew, often persisting even after wash cycles. This issue can stem from food debris buildup, bacterial growth, or clogged drains. Don't let foul smells linger; take action to restore freshness to your kitchen appliance.
Important Tips for LG Models
- LG official guidance suggests running an auto cycle without detergent to help with odors
Possible Causes
Food debris buildup in filter and drain area
How to Identify: Persistent rotten food smell; visible food particles in filter or drain; smell strongest at bottom of dishwasher
Part: Dishwasher filter and drain
Bacterial/mold growth due to moisture and residue
How to Identify: Musty or mildew-like odor; smell increases after cycles or in humid conditions
Part: Interior surfaces, gaskets
Clogged or poorly draining dishwasher drain and hoses
How to Identify: Standing water after cycle; sewer-like odor indicating drain trap issues
Part: Drain hose, drain line
Residual detergent or grease buildup
How to Identify: Soap or greasy smell; residue visible on interior parts
Part: Interior surfaces, spray arms
New dishwasher initial odors
How to Identify: Chemical or rubber/plastic odor in new machine that fades over early cycles
Part: Interior plastic and rubber parts
DIY Solutions
Clean the dishwasher filter and drain
- Locate and remove the bottom dishwasher filter according to your model’s manual
- Rinse the filter under warm water, use a soft brush to remove debris
- Check the drain area for trapped food debris and wipe clean
- Reinstall the filter and run a short rinse cycle
Run a cleaning cycle with dishwasher cleaner or vinegar
- Empty dishwasher
- Place dishwasher cleaner tablet or a cup of white vinegar on the top rack
- Run a hot water cycle to clean interior surfaces
Dry interior and gasket areas after use
- After cycle, open door to allow air drying
- Wipe gasket and interior surfaces with dry cloth
- Leave door ajar between cycles to reduce moisture
Next step
Choose the next step for odor issue
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Dishwasher Filter
Screens food debris from recirculating wash water and protects the pump system.
- Typical part-only price
- $15 - $65
- DIY difficulty
- Easy
- Estimated time
- 5-15 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.
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.
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
Model-compatible Dishwasher 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.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
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.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Deep drain and hose cleaning service
Interior antimicrobial cleaning and inspection
When to Call a Professional
Preventive Maintenance
-
Clean filter regularly: Food debris odor
Frequency: monthly -
Run a maintenance cleaning cycle: Bacterial and residue buildup
Frequency: monthly -
Dry interior after use: Mold and mildew growth
Frequency: After each use
Frequently Asked Questions
Why is my LG Dishwasher odor issue?
How do I fix LG Dishwasher odor issue myself?
How much does it cost to fix odor issue?
When should I call a technician for odor issue?
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
- Food debris trapped in the filter or spray arms
- Standing water in the bottom of the dishwasher
- Dirty or clogged drain hose
User Suggested Solutions
-
Remove the bottom rack and clean the filter. Check the spray arms for blockages and clean them thoroughly. Run a cycle with a dishwasher cleaner or a mixture of vinegar and baking soda to eliminate odors.
-
Inspect the drain hose for kinks or clogs. Ensure it is properly installed and not obstructed. If necessary, detach and clean the hose with warm soapy water.
-
Check for standing water in the bottom of the dishwasher. If present, investigate the drain pump and filter for blockages. Clear any obstructions and run a cycle to check for improvements.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
Community Discussions
smells like spoiled milk
Clean the machine using citric acid and check for proper drainage setup.
Source: Reddit r/appliancerepair
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!