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LG WM3998

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Washer-dryer combo2020

LG WM3998 maintenance schedule and special situations.

Maintenance schedule

ItemIntervalOwner action
Care after washAfter the cycle is finishedWipe moisture from the door and seal, dry the cabinet, and leave the door open so the drum can dry.
Replace water inlet hosesevery five yearsInspect both hoses for cracks, leaks, and wear and replace them at LG's printed interval.
Clean drain pump filterPeriodicallyDrain residual water, remove debris from the pump filter and opening, and reinstall the filter securely.
Tub CleanmonthlyRun the empty Tub Clean cycle to remove residue and prevent odor.
Clean detergent dispenser draweronce or twice a monthRemove the drawer and inserts, rinse away residue, dry, and reinstall.
Clean door sealonce a monthClean all around the gasket with the diluted solution in the manual, wipe dry, and leave the door open.

Special situations

ItemIntervalOwner action
Tub Clean odor remedyonce a week for three consecutive weeksIf mildew or a musty odor is already present, run the empty Tub Clean remedy sequence printed by LG.
Clean water inlet filtersWhen fill performance drops, an inlet error appears, or scale blocks the screens, remove, clean, and reinstall both inlet filters.

Full LG Edge File

ApplianceEdge assessments — lifespans, repair values, and reliability notes — are our editorial opinions, built from documented third-party sources: owner reports, industry pricing data, manufacturer literature, and official records. They describe patterns across a product family, not any individual machine; your experience may differ. Recall information links directly to official CPSC notices. We accept no payment from manufacturers, and no brand influences what we publish.

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