{
  "id": "lg-rattling-noise",
  "version": "2.0.0",
  "title": "Check rattling and clanking from laundry",
  "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": "Look for loose objects in the stopped drum and refer persistent mechanical noise.",
  "prerequisites": [
    {
      "text": "Pause; wait for the door to unlock and the drum to stop.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    },
    {
      "text": "Switch off and unplug before checking inside. Watch for sharp objects.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    }
  ],
  "tools": [
    "Protective gloves if needed"
  ],
  "materials": [
    "No materials needed"
  ],
  "steps": [
    {
      "id": "step-1",
      "text": "Check the stopped, safely opened drum for loose keys, coins or other objects. Remove only plainly accessible objects.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    },
    {
      "id": "step-2",
      "text": "Inspect pockets before the next load so the objects cannot recur. Do not reach into openings or dismantle the drum.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    },
    {
      "id": "step-3",
      "text": "If the drain filter may contain an object, follow the separate filter task with residual water containment.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    },
    {
      "id": "step-4",
      "text": "Only after reassembly and a dry safe area, restart a normal load. Stop and call for service if clanking persists or a damaged component is visible.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    }
  ],
  "checks": [
    {
      "id": "sound-type",
      "goal": "Does the noise sound like loose objects rattling or clanking?",
      "question": "Does the noise sound like loose objects rattling or clanking?",
      "instruction": "Note when it occurs. Ordinary lock clicks, water spraying and drain humming are described separately in the manual.",
      "stepIds": [],
      "choices": [
        {
          "label": "Only ordinary lock or water sounds were heard",
          "next": "identified",
          "observation": "normal"
        },
        {
          "label": "Loose-object rattling or clanking was heard",
          "next": "noise-stop",
          "observation": "abnormal"
        },
        {
          "label": "I cannot describe the sound yet",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "p. 45"
    },
    {
      "id": "noise-stop",
      "goal": "Is the drum stopped, unlocked and power unplugged?",
      "question": "Is the drum stopped, unlocked and power unplugged?",
      "instruction": "Pause and wait for safe unlocking before switching off and unplugging. Watch for sharp objects.",
      "stepIds": [],
      "choices": [
        {
          "label": "Drum is safely accessible and unplugged",
          "next": "loose-objects",
          "observation": "normal"
        },
        {
          "label": "The drum is damaged or cannot be accessed safely",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not finished stopping and isolating power",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 4–5, 45"
    },
    {
      "id": "loose-objects",
      "goal": "Are there plainly accessible loose objects in the drum?",
      "question": "Are there plainly accessible loose objects in the drum?",
      "instruction": "Remove only accessible items; check pockets. Keep hands out of openings and never dismantle the drum.",
      "stepIds": [
        "step-1",
        "step-2"
      ],
      "choices": [
        {
          "label": "Accessible objects were removed and pockets checked",
          "next": "noise-retry",
          "observation": "normal"
        },
        {
          "label": "No object is visible but the sound suggests one",
          "next": "noise-filter",
          "observation": "abnormal"
        },
        {
          "label": "An object is trapped, sharp or inaccessible",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not checked this yet",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 19, 45"
    },
    {
      "id": "noise-filter",
      "goal": "Has the separate filter check been completed if needed?",
      "question": "Has the separate filter check been completed if needed?",
      "instruction": "Use the drain-filter task with power isolation and residual-water containment. Do not open the filter directly from this check.",
      "stepIds": [
        "step-3"
      ],
      "choices": [
        {
          "label": "The complete filter procedure was followed and parts refitted",
          "next": "noise-retry",
          "observation": "normal"
        },
        {
          "label": "The filter cannot be checked safely",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "The filter check has not been performed",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "pp. 40, 45"
    },
    {
      "id": "noise-retry",
      "goal": "Did clanking return on the next normal load?",
      "question": "Did clanking return on the next normal load?",
      "instruction": "Restart only after complete reassembly and a dry safe area. Stop for continuing mechanical noise.",
      "stepIds": [
        "step-4"
      ],
      "choices": [
        {
          "label": "The loose-object noise did not recur",
          "next": "done",
          "observation": "normal"
        },
        {
          "label": "Clanking persists or damage is visible",
          "next": "service",
          "observation": "abnormal"
        },
        {
          "label": "I have not listened during another normal load",
          "next": "ready",
          "observation": "unobserved"
        }
      ],
      "sourceId": "lg-manual",
      "locator": "p. 45"
    }
  ],
  "branches": {
    "entry": "sound-type",
    "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": "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": "Loose objects were identified and the rattling does not recur",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    }
  ],
  "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. 4, 40, 45",
      "topicPage": 45,
      "pdfPage": 45,
      "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-load-balance",
      "url": "/diagrams/lg-load-balance.svg",
      "kind": "original schematic",
      "alt": "Loose laundry and accessible pocket objects shown separately from a balanced load",
      "license": "Original Homekeep artwork. Conceptual component relationships, not a scale drawing or an installation template.",
      "sourceId": "lg-manual",
      "locator": "pp. 4, 40, 45"
    }
  ],
  "relatedIds": [
    "lg-drain-filter",
    "lg-ue-load",
    "lg-load-preparation"
  ],
  "family": "wash-dry",
  "diagramId": "lg-load-balance",
  "recordFields": [
    {
      "key": "before-observation",
      "label": "Noise character and cycle stage",
      "phase": "before",
      "type": "text",
      "placeholder": "Rattle, clank, lock click; when it happens"
    },
    {
      "key": "after-observation",
      "label": "Objects removed and next-load noise",
      "phase": "after",
      "type": "text",
      "placeholder": "Objects found or none; sound returned or absent"
    }
  ],
  "maintenance": {
    "intervalDays": null,
    "basis": "user-selected",
    "label": "Check for loose objects when a new noise appears; empty pockets before washing.",
    "sourceId": "lg-manual",
    "locator": "pp. 19, 45"
  }
}