中文
含义
2-1 表示洗碗机在排水阶段未能将内胆中的水排出。肯摩尔洗碗机的控制板在启动排水泵后，通过水位传感器监测内胆水位下降情况。如果排水泵运行超过预设时间（通常为 2-3 分钟）后水位仍未降至复位点以下，控制板即判定排水失败并显示 2-1 错误代码，停止程序运行以防止污水滞留产生异味和细菌滋生。
常见原因
- 排水管弯折、压扁或深入排水立管过深形成虹吸阻力，导致水无法顺畅排出。
- 排水管末端与厨余处理器或水槽排水口连接的敲落塞未被移除，排水管出口完全封堵。
- 滤网组合（粗滤网、细滤网）长期未清洗，被食物残渣、油脂和纤维严重堵塞。
- 排水泵叶轮被异物（如骨头碎片、果核、牙签、碎玻璃）卡住，电机堵转。
- 排水泵电机绕组烧毁或启动电容失效，通电后泵不旋转或转速不足。
- 连接排水泵与内胆排水口之间的软管内部被油脂沉积物阻塞，形成瓶颈。
- 水位传感器故障，实际已排空但传感器持续回报高水位信号，控制板误判排水失败。
自助排查
- 打开洗碗机门，检查内胆底部是否有明显积水。先尝试用杯子手动舀出积水，再用毛巾吸干残留。
- 检查水槽下方排水管的走向，确保管路没有弯折或被压在洗碗机底部，排水管应有自然坡度下降至排水口。
- 拧下排水管与厨余处理器或水槽排水接口的连接，确认敲落塞已被完整移除，管口通畅。
- 拆下洗碗机内胆底部的滤网组件（逆时针旋转即可取出），用温水配合软刷彻底清洗所有滤网层。
- 移除滤网后，伸手探入滤网槽底部排水口处，触摸排水泵叶轮是否有异物卡滞，清理叶轮周围杂物。
- 从厨余处理器端暂时拔下排水管，放入一个大水桶中，启动洗碗机排水程序，观察水是否能顺畅泵出。
- 若排水泵有嗡嗡声但不出水，说明泵已转动受阻或叶轮损坏；若完全静音，可能电机已烧毁。此两种情况均需联系肯摩尔售后更换排水泵总成。
English
Meaning
2-1 indicates that the dishwasher failed to drain water from the tub during the drain phase. The Kenmore dishwasher’s control board monitors the tub water level through the water level sensor after energizing the drain pump. If the water level does not drop below the reset threshold after the drain pump has run for a preset duration (typically 2–3 minutes), the control board determines that draining has failed and displays the 2-1 error code, stopping the program to prevent stagnant wastewater from producing odors and breeding bacteria.
Common Causes
- The drain hose is kinked, flattened, or inserted too deeply into the standpipe, creating a siphon-lock situation that prevents smooth drainage.
- The knockout plug at the drain hose connection to the garbage disposal or sink drain has not been removed, fully blocking the drain outlet.
- The filter assembly (coarse filter, fine filter) has not been cleaned for an extended period and is heavily clogged with food debris, grease, and fibers.
- The drain pump impeller is jammed by foreign objects (such as bone fragments, fruit pits, toothpicks, or broken glass), causing the motor to stall.
- The drain pump motor winding is burnt out or the start capacitor has failed — the pump does not rotate or runs at insufficient speed when energized.
- The internal hose connecting the drain pump to the tub drain port is clogged with accumulated grease deposits, creating a bottleneck.
- The water level sensor is faulty — the tub has actually drained but the sensor continues to report a high water level, causing the control board to falsely determine a drain failure.
Self-Check Steps
- Open the dishwasher door and check for standing water at the bottom of the tub. Attempt to manually scoop out the water with a cup first, then absorb the remainder with towels.
- Inspect the routing of the drain hose under the sink. Ensure the hose is not kinked or compressed under the dishwasher and has a natural downward slope toward the drain connection.
- Disconnect the drain hose from the garbage disposal or sink drain connection and verify that the knockout plug has been completely removed and the port is unobstructed.
- Remove the filter assembly from the bottom of the dishwasher tub (turn counterclockwise to release) and thoroughly clean all filter layers with warm water and a soft brush.
- After removing the filter, reach into the filter sump at the drain port and feel around the drain pump impeller for any foreign objects; clear any debris from around the impeller.
- Temporarily disconnect the drain hose from the disposal end, place it into a large bucket, and start a drain cycle on the dishwasher to observe whether water is being pumped out smoothly.
- If the drain pump produces a humming sound but no water is discharged, the pump is obstructed or the impeller is damaged. If there is complete silence, the motor may be burnt out. In either case, contact Kenmore after-sales service to replace the drain pump assembly.