How to Clean an LG Washing Machine: Complete Maintenance Guide

Your LG washing machine features advanced technology like Inverter Direct Drive and TurboWash 360, but these systems still require regular cleaning to perform at their best. LG front-load washers are particularly prone to mold buildup in the door boot seal (part MDS47123602), and the TurboWash jet nozzles can clog with mineral deposits from hard water. This comprehensive guide covers every cleaning procedure specific to LG washers, whether you own a front-load WM series or a top-load WT series.

LG recommends running the Tub Clean cycle every 30 washes, and your machine will display a reminder when it is time. Ignoring this reminder leads to odor buildup, mold growth in the rubber boot seal, and eventually reduced cleaning performance. This guide goes beyond the basic tub clean cycle to address every area where grime accumulates.

Before You Start

• Tools needed: Microfiber cloths, soft-bristle toothbrush, spray bottle, small bowl
• Supplies needed: White vinegar, baking soda, bleach (non-chlorine for colored gaskets), LG Tub Clean tablets or affresh tablets
• Time required: 45-60 minutes (plus tub clean cycle run time)
• Difficulty: Beginner
• Safety warning: Unplug the washing machine or turn off the circuit breaker before cleaning internal components. Never mix bleach and vinegar.

Step-by-Step Instructions

Step 1: Clean the Door Boot Seal (Front-Load Models)

The LG door boot seal (MDS47123602) has multiple folds where moisture, hair, and detergent residue collect. Pull back the rubber gasket folds gently with your fingers and inspect for black mold spots, coins, hair clips, or small clothing items trapped in the lower drain channel.

Mix equal parts white vinegar and water in a spray bottle. Spray the entire interior surface of the boot seal generously, paying special attention to the bottom section where water pools. Let it sit for five minutes. Then use a microfiber cloth to wipe around the entire circumference, pulling back each fold to reach hidden surfaces.

For stubborn mold stains, make a paste of baking soda and water. Apply it to the dark spots with a soft toothbrush and scrub gently. The mold typically grows in the lower third of the seal where drainage is slowest. After scrubbing, wipe everything clean with a damp cloth and dry thoroughly.

Step 2: Clean the TurboWash 360 Spray Nozzles

LG front-load washers with TurboWash 360 have five recirculation spray jets mounted inside the drum opening. These nozzles shoot water during the wash cycle for faster soil removal, but hard water minerals can clog them over time, reducing spray pressure and cleaning effectiveness.

Locate the small nozzle openings around the inner rim of the door opening. They are roughly the diameter of a pencil tip. Use a wooden toothpick or the soft-bristle toothbrush to clear any mineral buildup from each nozzle opening. Do not use metal tools as they can damage the plastic nozzle housings.

For heavy mineral deposits, soak a cloth in undiluted white vinegar and press it over the nozzle area for ten minutes before clearing. You should be able to see through each nozzle opening when properly cleaned.

Step 3: Clean the Drain Pump Filter

LG front-load washers have an accessible drain pump filter behind a small service panel on the front lower-left corner. This filter catches coins, buttons, and debris before they reach the drain pump (4681EA2001T). Cleaning it monthly prevents drainage issues and the dE error code.

Place a shallow pan or towels under the service panel. Open the panel door and slowly unscrew the drain filter cap counterclockwise. Water will drain out, so go slowly. Once drained, pull the filter straight out and remove all debris: lint, coins, hair ties, and any small objects.

Rinse the filter under running water and use the toothbrush to clean the mesh screen. Inspect the filter housing cavity with a flashlight for any remaining debris. Reinsert the filter, tighten clockwise until snug, and close the service panel door.

Step 4: Run the LG Tub Clean Cycle

The Tub Clean cycle is specifically designed by LG to clean the inner and outer tub surfaces that you cannot reach manually. It runs a high-temperature wash without clothes, using extra water to flush residue from the outer tub, spray nozzles, and internal hoses.

Add one LG Tub Clean tablet or one cup of white vinegar directly into the drum (not the detergent dispenser). Select the Tub Clean cycle on your control panel. On most LG models, it is a dedicated cycle option. The cycle runs approximately 1 hour and 30 minutes on front-load models.

After the cycle completes, leave the door open to allow the interior to air dry completely. This is the single most important step for preventing mold growth between washes.

Step 5: Clean the Detergent Dispenser Drawer

Pull the detergent dispenser drawer out completely by pressing the release tab (located in the center of the fabric softener compartment on most LG models). Disassemble any removable inserts and rinse all parts under hot running water.

Scrub the compartment housing inside the machine with a damp cloth to remove detergent buildup and mold. The softener siphon tube tends to accumulate thick residue. Let all parts air dry before reassembling and sliding the drawer back in.

Step 6: Clean the Exterior and Control Panel

Wipe the control panel with a slightly damp cloth only. Never spray cleaning solutions directly on the panel as moisture can seep behind buttons and damage the control board. Clean the stainless steel or painted exterior with a gentle appliance cleaner and microfiber cloth, wiping in the direction of any brushed finish.

Step 7: Top-Load Specific Cleaning (WT Series)

LG top-load washers with TurboDrum technology have independent drum and pulsator rotation. The agitator base and pulsator area collects fabric softener residue. Remove the fabric softener dispenser from the top of the agitator (pull straight up) and soak in hot soapy water for 15 minutes.

Run the Tub Clean cycle with two cups of white vinegar poured directly into the drum. After the cycle, wipe the rim of the tub where splash residue accumulates. The ColdWash jet nozzles on top-load models are located under the tub rim and can be cleaned with a vinegar-soaked cloth.

Step 8: Smart Diagnosis for Persistent Issues

If your LG washer still has odor issues or error codes after thorough cleaning, use the LG ThinQ Smart Diagnosis feature. Open the LG ThinQ app on your smartphone, select your washer, and tap Smart Diagnosis. Hold your phone near the speaker area of the washer and press the Power button for three seconds when prompted. The washer will transmit diagnostic tones that the app decodes to identify any underlying issues affecting performance.

Troubleshooting Common Issues

If cleaning does not resolve odor or performance issues with your LG washing machine:

• Persistent mold smell after cleaning: the mold has penetrated the door boot seal material. Replacement of boot seal MDS47123602 is recommended rather than continued surface cleaning. Cost: $45-80 for the part
• tCL reminder appears too frequently: this is normal and indicates heavy usage. LG programs the reminder every 30 cycles regardless of cleaning history
• Water remains in the door seal trough after cleaning: this is by design to maintain seal moisture. Simply wipe dry after each use to prevent mold
• Washer vibrates after cleaning the drain filter: the filter may not be fully seated. Remove and reinstall, ensuring threads engage properly before tightening
• Detergent residue builds up quickly: you may be using too much detergent. LG HE washers require only 2 tablespoons of HE detergent per full load

When to Call a Professional

Contact a professional appliance technician if:

• Black mold has spread behind the drum or into the outer tub where you cannot access it, indicated by persistent smell even after tub clean cycles
• The drain pump filter housing is cracked or stripped and will not seal properly after cleaning
• You notice water leaking from behind the machine during or after the tub clean cycle, suggesting a worn tub-to-pump hose or failed boot seal clamp
• Error codes persist after cleaning, particularly dE (drain), LE (motor), or Sud (excessive suds), which indicate component failures beyond cleaning scope
• The machine is producing a grinding noise during spin, which suggests bearing wear unrelated to cleaning and requiring professional bearing press work

Cost Comparison: DIY vs Professional

Need Professional Help?

• washing machine repair service
• lg appliance repair
• washing machine repair cost guide

FAQ

Q: How often should I run the LG Tub Clean cycle? A: LG recommends every 30 wash cycles, which is typically once per month for average households. Your washer will display a tCL reminder automatically. In humid climates or with heavy usage, running it every 20 cycles provides better mold prevention.

Q: Can I use bleach in the Tub Clean cycle? A: Yes, you can use liquid chlorine bleach (one cup added to the drum) instead of tub clean tablets. However, do not use bleach and vinegar together. If your door boot seal has colored rubber portions, use non-chlorine bleach to prevent discoloration.

Q: Why does my LG washer smell bad even after cleaning? A: The most common cause is leaving the door closed between washes, trapping moisture inside. Always leave the door ajar after each cycle. If smell persists after thorough cleaning and proper door-open habits, the boot seal (MDS47123602) may need replacement as mold has penetrated the rubber itself.

Q: Is the drain pump filter the same on all LG front-load washers? A: The location and access is the same (lower-left service panel), but the filter size varies by model. The procedure for cleaning is identical across all LG front-load models from 2010 onward.

---

Need a certified technician? Book same-day repair →