LG · Laundry · WM4000HBA · Owner's Manual
Select the Heavy Soil feature, and consider hand washing or pre-treating if the stains were already set.
Source: LG WM4000HBA Owner's Manual, extracted pages 49-50
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Cycle Modifiers and Basic Options
Your washer lets you customize many cycles after you choose the cycle. Each cycle starts with default settings, but you can change some settings using the modifier buttons.
Before you change settings - Repeatedly press the button for the setting you want until the correct indicator light turns on. - The LED next to the selected setting lights up. - The washer automatically adjusts the water level for the load size and fabric type for better results and efficiency. - This is a high-efficiency washer, so the water level may look lower than expected. That is normal, and washing and rinsing performance is not reduced. - Not every temperature, spin speed, soil level, or option is available on every cycle. - If a setting is not allowed for the selected cycle, the washer sounds twice and the LED does not light. - Always follow the fabric care labels on the garment.
LG WM4000HBA Owner's Manual, extracted pages 29-32Troubleshooting Laundry Results, Odors, and Wi‑Fi
Use the suggestions below when clothes are wrinkled, stained, smell musty, or when the washer will not connect to Wi‑Fi.
Wrinkling
LG WM4000HBA Owner's Manual, extracted pages 49-50This answer is only published when it has a reviewed answer status and a source citation back to the manual text.