{
  "id": "lg-drain-filter",
  "version": "2.0.0",
  "title": "Clean the drain pump filter",
  "deviceFamily": "washer",
  "modelApplicability": {
    "modelIds": [
      "lg-wm4000hwa"
    ],
    "region": "US",
    "panel": "Rinse+Spin button with Control Lock marking; Tub Clean cycle. Compare your supplied manual with MFL71728908 Rev.02_051022.",
    "manualVersion": "MFL71728908 Rev.02_051022"
  },
  "exclusions": [
    "WM3400CW",
    "WM4000HBA",
    "WM4080HWA",
    "WM4000HWA with a different control panel or manual instructions"
  ],
  "intent": "maintenance",
  "summary": "Drain residual water before opening the filter, then clean and refit the user-accessible parts.",
  "prerequisites": [
    {
      "text": "Finish or stop the cycle; drum must be motionless.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "text": "Switch off and unplug the washer. Allow any water to cool; do not touch hot drainage water.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "text": "Prepare to contain residual water before loosening the filter.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    }
  ],
  "tools": [
    "Shallow container",
    "Bucket",
    "Soft cloth"
  ],
  "materials": [
    "Water for cleaning"
  ],
  "steps": [
    {
      "id": "step-1",
      "text": "Open the small drain-filter access cover. Place the container at the emergency drain hose.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "step-2",
      "text": "Unclip the small drain hose and remove its plug. Collect the residual water; empty the container as needed. Do not open the filter while water remains uncontained.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "step-3",
      "text": "Turn the filter counterclockwise to remove it. Clear accessible debris from the filter and its opening; do not reach into the pump mechanism.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "step-4",
      "text": "Replace the small hose plug and secure the hose in its clip. Insert the filter and turn it clockwise to seat it.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "step-5",
      "text": "Close the access cover. Only after reassembly, dry floor and hands, restore power and observe a normal drain for leakage. Stop if water escapes.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    }
  ],
  "checks": [
    {
      "id": "filter-need",
      "goal": "What prompted the drain-filter check?",
      "question": "What prompted the drain-filter check?",
      "instruction": "Use the last drain observation or your chosen periodic cleaning reminder. Stop for an active leak or unsafe water near power.",
      "stepIds": [],
      "choices": [
        {
          "label": "No drainage symptom and no cleaning planned",
          "next": "identified",
          "observation": "normal"
        },
        {
          "label": "Slow drainage or filter cleaning is planned",
          "next": "water-temperature",
          "observation": "abnormal"
        },
        {
          "label": "I have not checked this yet",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "water-temperature",
      "goal": "Is the washer unplugged and the drain water cool?",
      "question": "Is the washer unplugged and the drain water cool?",
      "instruction": "Finish or stop the cycle, wait for motion to stop and allow hot water to cool. Have a shallow container ready before opening the small access cover.",
      "stepIds": [
        "step-1"
      ],
      "choices": [
        {
          "label": "Unplugged, cool and ready to contain water",
          "next": "residual-drain",
          "observation": "normal"
        },
        {
          "label": "Water is escaping or the area is unsafe",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "Cooling or unplugging is still pending",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    },
    {
      "id": "residual-drain",
      "goal": "Has residual water drained through the small hose?",
      "question": "Has residual water drained through the small hose?",
      "instruction": "Drain into the container before loosening the large filter. Replug the small hose when emptying the container; repeat until the residual flow stops.",
      "stepIds": [
        "step-2"
      ],
      "choices": [
        {
          "label": "Residual water is contained and flow has stopped",
          "next": "filter-debris",
          "observation": "normal"
        },
        {
          "label": "I cannot contain the flow or drain safely",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not drained the residual water",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "p. 40"
    },
    {
      "id": "filter-debris",
      "goal": "Can the filter be removed and cleaned without damage?",
      "question": "Can the filter be removed and cleaned without damage?",
      "instruction": "Turn counterclockwise only after residual drainage. Clear accessible debris; keep fingers and tools out of the pump mechanism.",
      "stepIds": [
        "step-3"
      ],
      "choices": [
        {
          "label": "Filter and opening are clear and intact",
          "next": "filter-refit",
          "observation": "normal"
        },
        {
          "label": "Filter is stuck, damaged or unsafe to handle",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not checked this yet",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "p. 40"
    },
    {
      "id": "filter-refit",
      "goal": "Are the hose plug, hose clip and filter all secure?",
      "question": "Are the hose plug, hose clip and filter all secure?",
      "instruction": "Refit the small hose plug, clip the hose, seat the filter clockwise and close the cover before restoring power.",
      "stepIds": [
        "step-4"
      ],
      "choices": [
        {
          "label": "All user-accessible parts are secure",
          "next": "drain-result",
          "observation": "normal"
        },
        {
          "label": "A part will not seat or is damaged",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "Reassembly is not complete",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "p. 40"
    },
    {
      "id": "drain-result",
      "goal": "What happened on the next normal drain?",
      "question": "What happened on the next normal drain?",
      "instruction": "Observe only with the washer fully assembled, dry hands and a dry floor. Stop immediately for leakage.",
      "stepIds": [
        "step-5"
      ],
      "choices": [
        {
          "label": "Drain completed and the filter area stayed dry",
          "next": "done",
          "observation": "normal"
        },
        {
          "label": "Drainage is still poor or water escapes",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not observed another drain",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 40, 44"
    }
  ],
  "branches": {
    "entry": "filter-need",
    "outcomes": {
      "done": {
        "title": "Result recorded",
        "text": "You recorded the task result from your own observation. Keep the before and after notes and recheck during normal use. This record does not certify the appliance condition.",
        "type": "user-maintenance"
      },
      "identified": {
        "title": "Next action recorded",
        "text": "The observed condition does not call for further action in this task, or a different task is more appropriate. Keep the observation in your record; do not infer a failed component.",
        "type": "issue-located"
      },
      "service": {
        "type": "service-needed",
        "title": "Pause and arrange qualified help",
        "text": "Keep the appliance out of use if a safety concern remains. Give the technician the exact model, the visible symptom and any displayed code. Do not open the cabinet or make electrical measurements."
      },
      "ready": {
        "title": "Observation still needed",
        "text": "Your notes are saved. The missing observation is not evidence of a fault or a completed action. Complete only the steps you can perform safely, or ask for help.",
        "type": "prepared"
      }
    }
  },
  "outcomeChecks": [
    {
      "text": "Water drains and the refitted filter and hose plug do not leak",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    }
  ],
  "stopConditions": [
    "Smoke, a burning smell, damaged wiring, standing water near power, or an active leak: stop using the appliance. Disconnect power only from a safe, dry location and arrange qualified service.",
    "Stop if a part is damaged, jammed, sharp, inaccessible, or does not match your manual. Do not force parts or remove a cabinet panel."
  ],
  "sources": [
    {
      "id": "lg-manual",
      "title": "LG WM4000H*A / WM4080H*A Owner’s Manual",
      "url": "https://media.us.lg.com/m/12df7154cf356724/original/WM4080_2023_Owners-Manual_Washer_Eng.pdf",
      "version": "MFL71728908 Rev.02_051022",
      "checkedAt": "2026-10-13",
      "purpose": "User maintenance, control operations, observable troubleshooting and safety",
      "reuse": "Copyright LG. Linked reference; original summaries only. No manual illustrations reproduced.",
      "locator": "pp. 5–6, 40",
      "topicPage": 40,
      "pdfPage": 40,
      "pageNumbering": "PDF page number equals printed English page number in these editions."
    },
    {
      "id": "lg-support",
      "title": "LG WM4000HWA product support",
      "url": "https://www.lg.com/us/support/product/lg-WM4000HWA.ABWEUUS",
      "version": "Live US model support page",
      "checkedAt": "2026-10-13",
      "purpose": "US model identity; newer revisions require comparison to supplied manual",
      "reuse": "Link only",
      "locator": "US WM4000HWA identity. Current support listings may contain a newer manual; these steps require MFL71728908 Rev.02_051022."
    }
  ],
  "assets": [
    {
      "id": "lg-drain-filter",
      "url": "/diagrams/lg-drain-filter.svg",
      "kind": "original schematic",
      "alt": "Small residual drain hose and plug distinguished from the larger removable drain pump filter",
      "license": "Original Homekeep artwork. Conceptual component relationships, not a scale drawing or an installation template.",
      "sourceId": "lg-manual",
      "locator": "pp. 5–6, 40"
    }
  ],
  "relatedIds": [
    "lg-oe-drain"
  ],
  "family": "drainage",
  "diagramId": "lg-drain-filter",
  "recordFields": [
    {
      "key": "before-observation",
      "label": "Drainage before cleaning",
      "phase": "before",
      "type": "text",
      "placeholder": "Slow drain, OE, or periodic cleaning"
    },
    {
      "key": "after-observation",
      "label": "Debris and drain result after refitting",
      "phase": "after",
      "type": "text",
      "placeholder": "What was removed; whether the next drain stayed dry"
    }
  ],
  "maintenance": {
    "intervalDays": null,
    "basis": "user-selected",
    "label": "Periodic cleaning; choose a reminder based on use. The manual gives no fixed interval.",
    "sourceId": "lg-manual",
    "locator": "p. 40"
  }
}