Record external clues after a water leak LG WM4000HWA Region: US | Content version: 2.0.0 Identify a visible leak location for service without running another test cycle. 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 [ ] Stop use immediately. Avoid standing water or wet electrical parts. [ ] Isolate power and close accessible supply valves only from a safe dry position. TOOLS - No tools needed MATERIALS - Local written notes, optional FULL CHECKLIST 1. From a dry location, record whether water was seen at the inlet connections, drain standpipe, drawer or door. Do not touch a wet machine. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4–5, 46 2. Observe reachable hoses for cracks, splits or an obvious disconnected end without moving or undoing anything. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4–5, 46 3. If household drain water backed up during the last drain, request a plumber to check the drain line. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4–5, 46 4. Record detergent type and visible suds, since excess suds can contribute to leakage. Do not run another cycle to recreate the leak. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4–5, 46 5. Arrange qualified service or plumbing help with the exact model and observations; keep the washer out of use until the cause is addressed. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 4–5, 46 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: Can you stay on dry ground away from wet electrical parts? Can you stay on dry ground away from wet electrical parts? Can you stay on dry ground away from wet electrical parts? Stop use. Isolate power and close accessible water faucets only from a safe dry position. Do not touch a wet washer or run another cycle. - Observation is possible from a safe dry position -> Continue to: Where was water first seen during the previous use?. - No leak occurred; this record is not needed -> 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. - Water is active or the area is unsafe -> 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 cannot confirm a safe observation position -> 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. Where was water first seen during the previous use? Where was water first seen during the previous use? Record only what you already saw or can see without approaching the wet appliance. Follow checklist steps: 1 - No location is visible now; prior observation is recorded -> Continue to: Is visible hose damage or a disconnected end present?. - At a hose, drawer, door or drain area -> Continue to: Is visible hose damage or a disconnected end present?. - I have no location observation 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 visible hose damage or a disconnected end present? Is visible hose damage or a disconnected end present? Inspect from your dry position; keep all fittings attached and do not move the appliance. Follow checklist steps: 2 - No visible hose damage from this position -> Continue to: Was water backing up from the household drain?. - A crack, split or disconnected end is visible -> Continue to: Is the observation note ready for qualified help?. - Hoses cannot be observed safely -> 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. Was water backing up from the household drain? Was water backing up from the household drain? Use the previous drain observation. A household drain backup should be assessed by a plumber. Follow checklist steps: 3 - No drain backup was observed -> Continue to: Were excess suds present when the leak occurred?. - Drain backup was observed -> Continue to: Is the observation note ready for qualified help?. - Drain behavior was not observed -> 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. Were excess suds present when the leak occurred? Were excess suds present when the leak occurred? Record product and dose if known. Suds can contribute to leakage but do not prove its origin. Follow checklist steps: 4 - No excess suds were seen -> Continue to: Is the observation note ready for qualified help?. - Excess suds were seen -> Continue to: Is the observation note ready for qualified help?. - Suds were not observed -> 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 observation note ready for qualified help? Is the observation note ready for qualified help? Keep the washer out of use. Give service or a plumber the location, timing, visible condition and exact model. Do not recreate the leak. Follow checklist steps: 5 - Service or plumbing note is prepared; washer remains off -> Leak observation note ready. Your note is ready for qualified service or a plumber. Keep the washer out of use until the cause is addressed. Completing this note does not mean the leak has been fixed. - Leakage is continuing or isolation is unsafe -> 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 prepared the note -> 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 - A likely external location was recorded for qualified help YOUR RECORD Observation date: ____________________ BEFORE First observed leak location and timing: ____________________ AFTER Visible clues and help requested: ____________________ Additional observations: ____________________ Result / reason for stopping: ____________________ Next action: ____________________ REMINDER Use after an observed leak; keep the washer out of use until its cause is addressed. Interval: Choose a personal interval; basis: user-selected Source: lg-manual; pp. 4–5, 46 A calendar reminder is a personal plan, not a record of work completed. DIAGRAMS External inlet, drawer, door and household drain locations for recording a previously observed leak https://csl-13-appliance-repair.pages.dev/diagrams/lg-exterior-observe.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. 4–5, 46 https://media.us.lg.com/m/12df7154cf356724/original/WM4080_2023_Owners-Manual_Washer_Eng.pdf#page=46 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 Check excessive suds or svd: https://csl-13-appliance-repair.pages.dev/tasks/lg-excess-suds/ Check an IE inlet error from outside: https://csl-13-appliance-repair.pages.dev/tasks/lg-ie-inlet/ 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-leak-check/