Keeping an LG dishwasher performing at its best involves regular cleaning to prevent odors, residue buildup, and clogged spray arms. This guide provides a clear, step-by-step approach using common LG-friendly cleaning products and tools designed for American households.
By following the steps below, users can maintain efficiency, extend the unit’s lifespan, and ensure optimal cleaning results for everyday laundry and dishwashing cycles.
Quick Answer
Run a hot water cycle with an automatic dishwasher cleaner designed for LG, then manually scrub the interior using a dishwasher cleaning brush kit and a dishwasher spray arm cleaning brush. Follow up with a tub cleaning powder kit for thorough deodorizing and buildup removal.
What You’ll Need
- LG dishwasher cleaner tablets
- Dishwasher cleaning brush kit
- Dishwasher spray arm cleaning brush
- Automatic dishwasher cleaner for LG
- LG dishwasher tub cleaning powder kit
Before You Start
Before cleaning, ensure the dishwasher is empty and the door seals are not damaged. Use protective gloves to avoid contact with cleaners. Run a hot wash only if your model supports it, and never mix bleach with ammonia-based cleaners. Plan for about 60 to 90 minutes for a thorough clean, including drying time. Important: avoid harsh abrasives that could scratch the interior or damage the spray arms.
Step-By-Step: How To Clean LG Dishwasher
- Remove racks and check the bottom of the tub for debris or food particles; clear any clogs with a damp cloth.
- Apply an automatic dishwasher cleaner for LG into the detergent cup or as directed by the product label, then run a hot water cycle on the longest setting.
- Inspect and clean the spray arms: use the spray arm cleaning brush to remove any mineral deposits or loosened food bits from the nozzles.
- With the dishwasher off, use the dishwasher tub cleaning powder kit inside the tub. Run a second hot cycle to dissolve mineral buildup and deodorize.
- Use the LG dishwasher cleaner tablets for a maintenance cycle, following the package directions for placement and duration.
- Wipe down the door seals, gaskets, and interior surfaces with a damp cloth to remove residue and moisture buildup.
- Reinstall the racks and run a final rinse cycle to ensure all cleaners are flushed out and the interior is dry.
- Check for any remaining odors or residue after the cycle; repeat the cleaning routine monthly or as needed.
- Inspect the filter and sump area for trapped debris and clean thoroughly to prevent clogs and poor drainage.
- Store tools and cleaners in a cool, dry place and label any replacement parts for easy future use.
- Schedule a routine maintenance reminder to perform a light clean every few weeks and a deep clean every 1–3 months depending on usage.
- For persistent issues like water spots or poor cleaning performance, escalate to a professional if problems persist after routine cleaning.
Troubleshooting
| Symptom | Likely Cause | Fix | Prevention |
|---|---|---|---|
| Water not filling or leaks | Blocked inlet valve or damaged seal | Inspect and replace faulty parts; call a pro if under warranty | Regularly inspect seals and inlet valves |
| Unpleasant odor after cycles | Food debris trapped in filter or sump | Clean filter and sump; run an LG cleaner cycle | Clean monthly; avoid overloading |
| Streaks on dishes | Mineral deposits or soap residue | Use proper detergent amount and run a mineral buildup clean | Use recommended rinse products sparingly |
| Spray arms not rotating | Clogged nozzles | Clean spray arm holes with brush | Rinse items before loading to prevent clogs |
| Poor drainage | Clogged filter or drainage hose | Clean filter; inspect hose for kinks | Check after heavy wash cycles |
Common Mistakes
- Using bleach and ammonia-based cleaners together
- Overloading the dishwasher or blocking spray arms
- Skipping the filter and sump cleaning
- Using excessive amounts of detergent
- Neglecting routine maintenance and lubrication of seals
Tips For Best Results
- Run a maintenance cycle monthly with a product designed for LG dishwashers to prevent buildup.
- Always use the correct cycle length for deep cleaning and mineral removal.
- Pre-rinse heavily soiled dishes or pots to reduce residue inside the tub.
- Keep the spray arms free of obstructions and check nozzles for mineral buildup during routine cleanings.
- Store cleaning products away from children and pets, following product directions closely.
Call A Professional
Contact a professional if:
- The dishwasher won’t start or fills slowly after cleaning.
- There are persistent leaks or damaged door seals that do not respond to standard maintenance.
- Electrical or control panel issues surface after routine cleaning.
FAQ
How often should I clean my LG dishwasher?
Perform a maintenance cycle every 1–3 months, with a full interior and spray arm clean at least every 3–6 months depending on usage.
Can I use regular household cleaners in my LG dishwasher?
Avoid household cleaners not designed for dishwashers; use only products labeled for LG dishwashers or compatible dishwasher cleaners.
Will dishwasher tablets work for interior cleaning?
Yes, dishwasher tablets labeled for maintenance can help remove buildup when used as directed in the product instructions.
What should I do if odors persist after cleaning?
Investigate the filter and sump, run a dedicated deodorizing cycle, and consider repeating the cleaning routine or seeking professional help if odors return.
Is it necessary to clean the spray arms separately?
Yes, debris can clog spray arms; use a dedicated spray arm cleaning brush to restore full spray functionality.
Should I run hot water or a sanitize cycle?
Hot water cycles help dissolve grease and mineral buildup; use the sanitize option if available for deeper cleaning.
Buying Guide
When choosing cleaning tools and products for an LG dishwasher, consider size, compatibility, and maintenance needs. Look for products labeled specifically for LG or for universal dishwasher compatibility to ensure safe use with LG models. Factors to weigh include:
- Size and compatibility: Ensure cleaner tablets, tub powders, and brushes fit your dishwasher’s interior dimensions and model series.
- Noise level and cycle options: Some cleaners are quiet and designed for use with longer cycles that LG dishwashers offer.
- Energy efficiency: Regular maintenance helps preserve efficiency; avoid frequent heavy cleaning that could waste water and energy if not necessary.
- Controls and placement: Choose sprays and brushes that are easy to store and access, with clear labeling to fit your home routine.
- Placement for storage: Keep products in a cool, dry location, away from kids, and within reach for quick maintenance tasks.