Check rattling and clanking from laundry LG WM4000HWA Region: US | Content version: 2.0.0 Look for loose objects in the stopped drum and refer persistent mechanical noise. MODEL AND MANUAL Exact model: WM4000HWA Rinse+Spin button with Control Lock marking; Tub Clean cycle. Compare your supplied manual with MFL71728908 Rev.02_051022. Manual: MFL71728908 Rev.02_051022 Excludes: WM3400CW; WM4000HBA; WM4080HWA; WM4000HWA with a different control panel or manual instructions PREPARATION [ ] Pause; wait for the door to unlock and the drum to stop. [ ] Switch off and unplug before checking inside. Watch for sharp objects. TOOLS - Protective gloves if needed MATERIALS - No materials needed FULL CHECKLIST 1. Check the stopped, safely opened drum for loose keys, coins or other objects. Remove only plainly accessible objects. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4, 40, 45 2. Inspect pockets before the next load so the objects cannot recur. Do not reach into openings or dismantle the drum. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4, 40, 45 3. If the drain filter may contain an object, follow the separate filter task with residual water containment. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4, 40, 45 4. 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. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4, 40, 45 STOP CONDITIONS - 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. BRANCH CHECKS Begin with: Does the noise sound like loose objects rattling or clanking? Does the noise sound like loose objects rattling or clanking? Does the noise sound like loose objects rattling or clanking? Note when it occurs. Ordinary lock clicks, water spraying and drain humming are described separately in the manual. - Only ordinary lock or water sounds were heard -> Next action recorded. 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. - Loose-object rattling or clanking was heard -> Continue to: Is the drum stopped, unlocked and power unplugged?. - I cannot describe the sound yet -> Observation still needed. 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. Is the drum stopped, unlocked and power unplugged? Is the drum stopped, unlocked and power unplugged? Pause and wait for safe unlocking before switching off and unplugging. Watch for sharp objects. - Drum is safely accessible and unplugged -> Continue to: Are there plainly accessible loose objects in the drum?. - The drum is damaged or cannot be accessed safely -> Pause and arrange qualified help. 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. - I have not finished stopping and isolating power -> Observation still needed. 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. Are there plainly accessible loose objects in the drum? Are there plainly accessible loose objects in the drum? Remove only accessible items; check pockets. Keep hands out of openings and never dismantle the drum. Follow checklist steps: 1, 2 - Accessible objects were removed and pockets checked -> Continue to: Did clanking return on the next normal load?. - No object is visible but the sound suggests one -> Continue to: Has the separate filter check been completed if needed?. - An object is trapped, sharp or inaccessible -> Pause and arrange qualified help. 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. - I have not checked this yet -> Observation still needed. 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. Has the separate filter check been completed if needed? Has the separate filter check been completed if needed? Use the drain-filter task with power isolation and residual-water containment. Do not open the filter directly from this check. Follow checklist steps: 3 - The complete filter procedure was followed and parts refitted -> Continue to: Did clanking return on the next normal load?. - The filter cannot be checked safely -> Pause and arrange qualified help. 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. - The filter check has not been performed -> Observation still needed. 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. Did clanking return on the next normal load? Did clanking return on the next normal load? Restart only after complete reassembly and a dry safe area. Stop for continuing mechanical noise. Follow checklist steps: 4 - The loose-object noise did not recur -> Result recorded. 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. - Clanking persists or damage is visible -> Pause and arrange qualified help. 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. - I have not listened during another normal load -> Observation still needed. 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. RESULT OBSERVATIONS - Loose objects were identified and the rattling does not recur YOUR RECORD Observation date: ____________________ BEFORE Noise character and cycle stage: ____________________ AFTER Objects removed and next-load noise: ____________________ Additional observations: ____________________ Result / reason for stopping: ____________________ Next action: ____________________ REMINDER Check for loose objects when a new noise appears; empty pockets before washing. Interval: Choose a personal interval; basis: user-selected Source: lg-manual; pp. 19, 45 A calendar reminder is a personal plan, not a record of work completed. DIAGRAMS Loose laundry and accessible pocket objects shown separately from a balanced load https://csl-13-appliance-repair.pages.dev/diagrams/lg-load-balance.svg Original Homekeep artwork. Conceptual component relationships, not a scale drawing or an installation template. SOURCES LG WM4000H*A / WM4080H*A Owner’s Manual | MFL71728908 Rev.02_051022 | pp. 4, 40, 45 https://media.us.lg.com/m/12df7154cf356724/original/WM4080_2023_Owners-Manual_Washer_Eng.pdf#page=45 Checked: 2026-10-13. Copyright LG. Linked reference; original summaries only. No manual illustrations reproduced. LG WM4000HWA product support | Live US model support page | US WM4000HWA identity. Current support listings may contain a newer manual; these steps require MFL71728908 Rev.02_051022. https://www.lg.com/us/support/product/lg-WM4000HWA.ABWEUUS Checked: 2026-10-13. Link only RELATED TASKS Clean the drain pump filter: https://csl-13-appliance-repair.pages.dev/tasks/lg-drain-filter/ Rebalance a load showing UE: https://csl-13-appliance-repair.pages.dev/tasks/lg-ue-load/ Prepare a load before starting the washer: https://csl-13-appliance-repair.pages.dev/tasks/lg-load-preparation/ Observations do not certify a physical repair. Follow your matching supplied manual and the stop conditions. Guide: https://csl-13-appliance-repair.pages.dev/tasks/lg-rattling-noise/