{
  "id": "lg-odor",
  "version": "2.0.0",
  "title": "Trace a musty washer smell",
  "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": "troubleshooting",
  "summary": "Separate damp laundry, drawer residue and drum cleaning needs before choosing maintenance.",
  "prerequisites": [
    {
      "text": "Finish the cycle, wait for unlocking and remove laundry.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    },
    {
      "text": "Switch off and unplug for hands-on inspection; keep children and pets away.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    }
  ],
  "tools": [
    "Soft dry cloth"
  ],
  "materials": [
    "No cleaner until a separate maintenance task is selected"
  ],
  "steps": [
    {
      "id": "step-1",
      "text": "Remove any damp items left in the washer. Wipe moisture from the door glass and inside of the seal.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    },
    {
      "id": "step-2",
      "text": "Inspect the dispenser for buildup and use the linked drawer-cleaning task if residue is present.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    },
    {
      "id": "step-3",
      "text": "Inspect the empty drum for deposits and check when Tub Clean was last run. Use the linked empty-cycle task if cleaning is due.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    },
    {
      "id": "step-4",
      "text": "Allow the drum to dry with the door open only where children and pets cannot enter. Persistent odor or drainage trouble needs further support.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    }
  ],
  "checks": [
    {
      "id": "odor-kind",
      "goal": "Is the smell musty after laundry is removed?",
      "question": "Is the smell musty after laundry is removed?",
      "instruction": "A burning, chemical or gas smell requires stopping use and qualified help. This task is for musty moisture-related odor only.",
      "stepIds": [],
      "choices": [
        {
          "label": "No musty odor is present",
          "next": "identified",
          "observation": "normal"
        },
        {
          "label": "A musty smell remains after unloading",
          "next": "odor-moisture",
          "observation": "abnormal"
        },
        {
          "label": "The smell is burning, chemical or otherwise unsafe",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not checked after unloading",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 4–5, 37–38, 49"
    },
    {
      "id": "odor-moisture",
      "goal": "Have damp items and visible door moisture been removed?",
      "question": "Have damp items and visible door moisture been removed?",
      "instruction": "Wait for unlocking and motion to stop. Unplug before hands-on inspection, remove damp items and wipe door glass and the inside of the seal.",
      "stepIds": [
        "step-1"
      ],
      "choices": [
        {
          "label": "Laundry removed and accessible moisture wiped",
          "next": "odor-drawer",
          "observation": "normal"
        },
        {
          "label": "The door is unsafe to open or the seal is damaged",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "Unloading or wiping is pending",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 5, 37"
    },
    {
      "id": "odor-drawer",
      "goal": "Is residue visible in the dispenser?",
      "question": "Is residue visible in the dispenser?",
      "instruction": "Look after power isolation. Note a drawer-cleaning action when buildup is present; do not add cleaners yet.",
      "stepIds": [
        "step-2"
      ],
      "choices": [
        {
          "label": "No dispenser buildup is visible",
          "next": "odor-drum",
          "observation": "normal"
        },
        {
          "label": "Buildup is visible; drawer cleaning is noted",
          "next": "odor-drum",
          "observation": "abnormal"
        },
        {
          "label": "I have not inspected the drawer",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 38–39"
    },
    {
      "id": "odor-drum",
      "goal": "What do the drum and cleaning history show?",
      "question": "What do the drum and cleaning history show?",
      "instruction": "Record visible deposits and the last Tub Clean date. Select the relevant separate maintenance task; never mix products.",
      "stepIds": [
        "step-3"
      ],
      "choices": [
        {
          "label": "Drum looks clear and cleaning is current",
          "next": "odor-drying",
          "observation": "normal"
        },
        {
          "label": "Deposits are visible or cleaning is due",
          "next": "odor-drying",
          "observation": "abnormal"
        },
        {
          "label": "Drum condition or cleaning history is unknown",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 37–38"
    },
    {
      "id": "odor-drying",
      "goal": "Is a safe drying and maintenance action recorded?",
      "question": "Is a safe drying and maintenance action recorded?",
      "instruction": "Ventilate only with children and pets kept out. Note the selected Tub Clean, seal or drawer task. Persistent odor or drainage trouble needs support.",
      "stepIds": [
        "step-4"
      ],
      "choices": [
        {
          "label": "Moisture, cleaning need and next action are recorded",
          "next": "done",
          "observation": "normal"
        },
        {
          "label": "Odor persists after appropriate completed care or drainage is poor",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "No drying or maintenance action is selected yet",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    }
  ],
  "branches": {
    "entry": "odor-kind",
    "outcomes": {
      "done": {
        "title": "Odor care plan recorded",
        "text": "The moisture and residue observations and next care task are saved. Complete the selected maintenance separately, then observe whether the odor returns.",
        "type": "issue-located"
      },
      "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": "A moisture or residue source was found and the appropriate maintenance task chosen",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    }
  ],
  "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. 37–40, 49",
      "topicPage": 49,
      "pdfPage": 49,
      "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-drum-care",
      "url": "/diagrams/lg-drum-care.svg",
      "kind": "original schematic",
      "alt": "Empty drum, visible deposits and drying observations used to choose appropriate odor maintenance",
      "license": "Original Homekeep artwork. Conceptual component relationships, not a scale drawing or an installation template.",
      "sourceId": "lg-manual",
      "locator": "pp. 37–40, 49"
    }
  ],
  "relatedIds": [
    "lg-tub-clean",
    "lg-drawer-clean",
    "lg-door-seal"
  ],
  "family": "odor",
  "diagramId": "lg-drum-care",
  "recordFields": [
    {
      "key": "before-observation",
      "label": "Odor and time damp laundry remained",
      "phase": "before",
      "type": "text",
      "placeholder": "Musty smell; after unloading; damp laundry time"
    },
    {
      "key": "after-observation",
      "label": "Moisture, residue and selected next task",
      "phase": "after",
      "type": "text",
      "placeholder": "Drawer, seal or drum finding; drying or cleaning action"
    }
  ],
  "maintenance": {
    "intervalDays": null,
    "basis": "user-selected",
    "label": "Observe after washes and when odor develops; use the separate manufacturer schedules for selected cleaning tasks.",
    "sourceId": "lg-manual",
    "locator": "pp. 37–40, 49"
  }
}