Check an OE drainage message LG WM4000HWA Region: US | Content version: 2.0.0 Inspect the visible drain route and choose filter maintenance or qualified help. 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 the cycle; do not open a locked door or touch hot drain water. [ ] Observe the drain route without moving the washer or disconnecting the hose. TOOLS - No tools needed MATERIALS - No materials needed FULL CHECKLIST 1. Inspect the visible drain hose for kinks or pinching without moving the washer or undoing a connection. Refer inaccessible or damaged routing to an installer. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 13, 40, 44 2. Where safely visible, compare endpoint height with the installation limits: 24–96 inches (61–244 cm) above the washer bottom; best results at no more than 66 inches (168 cm). Have an installer assess uncertain height or an airtight drain connection. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 13, 40, 44 3. Use the separate drain-filter task only after its unplugging, cooling and residual-water precautions are met. Do not unscrew the filter from this external inspection task. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 13, 40, 44 4. After complete filter maintenance or a qualified routing correction, observe a normal drain with the washer assembled and the area dry. Stop for renewed OE or leakage and seek service. Source: LG WM4000H*A / WM4080H*A Owner’s Manual; pp. 13, 40, 44 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: Is OE displayed or has water failed to drain? Is OE displayed or has water failed to drain? Is OE displayed or has water failed to drain? Keep a locked door closed and avoid hot drainage water. An OE message alone does not identify a failed pump. - The drain completed and OE is absent -> 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. - OE or retained water was observed -> Continue to: Is the visible drain hose free of pinching and kinks?. - 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. Is the visible drain hose free of pinching and kinks? Is the visible drain hose free of pinching and kinks? Observe without moving the washer or disconnecting the hose. Have an installer address inaccessible or damaged routing. Follow checklist steps: 1 - The visible route is clear -> Continue to: Does the visible endpoint match the installation limits?. - A kink, pinch or damaged route 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. - The route is not visible -> 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. Does the visible endpoint match the installation limits? Does the visible endpoint match the installation limits? The manual specifies 24–96 inches (61–244 cm) above the washer bottom, with best results at no more than 66 inches (168 cm). Do not move the washer to measure; no airtight seal at the drain. Follow checklist steps: 2 - Accessible routing is within the manual limits -> Continue to: Has the separate drain-filter procedure been completed safely?. - Height is outside the limits or the connection is airtight -> 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. - Height or connection cannot be confirmed -> 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 drain-filter procedure been completed safely? Has the separate drain-filter procedure been completed safely? Open the filter only in its own task after unplugging, cooling and draining residual water. Record an installer correction instead if one was needed. Follow checklist steps: 3 - Filter maintenance or a qualified external correction is complete -> Continue to: What happened on the next drain after correction?. - Filter access or maintenance cannot be completed 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. - That maintenance or correction is still pending -> 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. What happened on the next drain after correction? What happened on the next drain after correction? With parts refitted and the area dry, observe drainage. A persistent OE message needs qualified help. Follow checklist steps: 4 - Drain completed without OE or leakage -> 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. - OE, retained water or leakage remains -> 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. - Another drain has not been 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. RESULT OBSERVATIONS - An external drainage restriction is identified or the next drain completes YOUR RECORD Observation date: ____________________ BEFORE OE and visible drain-route observations: ____________________ AFTER Correction and next-drain observation: ____________________ Additional observations: ____________________ Result / reason for stopping: ____________________ Next action: ____________________ REMINDER Use when drainage changes; the manual gives no fixed diagnostic interval. Interval: Choose a personal interval; basis: user-selected Source: lg-manual; pp. 40, 44 A calendar reminder is a personal plan, not a record of work completed. DIAGRAMS Conceptual drain hose endpoint height measured from washer bottom, with secure routing and an air gap https://csl-13-appliance-repair.pages.dev/diagrams/lg-drain-route.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. 13, 40, 44 https://media.us.lg.com/m/12df7154cf356724/original/WM4080_2023_Owners-Manual_Washer_Eng.pdf#page=44 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/ Record external clues after a water leak: https://csl-13-appliance-repair.pages.dev/tasks/lg-leak-check/ 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-oe-drain/