8-1 - 凯膳怡 洗碗机

中文

含义

8-1 表示洗碗机检测到排水速度低于正常范围但未完全堵塞（未触发 2-1 排水超时）。主控板在排水阶段监控水位下降速率，如果排水泵持续运转但水位下降明显慢于预期，判定为排水系统部分堵塞，显示 8-1 代码作为预警提示。此时程序通常仍可完成，但洗涤效果可能受影响，且长期忽视可能导致完全堵塞演变为 2-1 故障。

常见原因

1. 底部细滤网长时间未清洗，微小的食物纤维和油脂在滤网上形成凝胶状薄膜，限制了水流通量。
2. 排水管内部壁面长期积累油脂和洗涤剂残留形成”动脉粥样硬化”般的管内缩径，过水截面减小。
3. 水槽排水管（洗碗机排水管接入处）的 P 型存水弯部分堵塞，水流通过速度受限。
4. 排水泵叶轮上缠绕了头发、线头或纤维物，虽然没有将叶轮完全卡死但增加了旋转阻力。
5. 排水管吊高接近机器容许的最大扬程极限，排水泵在极限工况下效率降低。
6. 垃圾处理器（Garbage Disposal）内部残渣过多或研磨腔堵塞，排水反压增大。
7. 排水单向阀（Check Valve）弹簧老化或阀瓣粘连，排水时有部分回流水降低了有效排水量。

自助排查

1. 取出底部过滤网组件（粗滤和细滤），放在热水和洗洁精中浸泡 15 分钟后用软刷彻底清洗，尤其注意细滤网孔不要被油脂膜堵住。
2. 用热水冲刷清洗过滤网下方的集水槽，确保集水槽通往排水泵的入口没有纤维状堵塞物。
3. 从洗碗机端断开排水管，用强光手电筒照射管内壁检查是否有油脂垢层（棕黑色黏滑物质）；如有，用长的管道刷或排水管清洁剂进行清洗。
4. 在下一次正常洗涤后，添加一杯白醋到洗碗机底部，运行一个短洗涤程序（不放餐具），利用醋的酸性溶解排水管路内的油脂和洗涤剂残留。
5. 检查并运行垃圾处理器（如已连接），确保研磨腔内无大量残渣滞留阻碍排水。
6. 如果以上清洁措施后排水仍明显偏慢，可能需要降低排水管的最高吊高点（缩短扬程）或检查排水泵叶轮缠绕情况，联系凯膳怡售后检修。

English

Meaning

8-1 indicates that the dishwasher has detected a drain rate slower than the normal range but not a complete blockage (which would trigger code 2-1 drain timeout). During the drain phase, the control board monitors the water level drop rate. If the drain pump continues to run but the water level drops significantly slower than expected, the system identifies a partial drain restriction and displays code 8-1 as an early warning. The cycle can typically still complete, but wash performance may be affected, and long-term neglect can lead to a full blockage evolving into a 2-1 fault.

Common Causes

1. The bottom fine filter has not been cleaned for a long time; microscopic food fibers and grease have formed a gel-like film on the filter mesh, restricting water flow.
2. The internal wall of the drain hose has accumulated grease and detergent residue over time, creating an “atherosclerosis”-like internal diameter reduction that decreases the water passage cross-section.
3. The sink drain’s P-trap (where the dishwasher drain hose connects) is partially clogged, limiting the water flow rate.
4. Hair, thread, or fibrous material is wound around the drain pump impeller; while not completely seizing the impeller, it increases rotational resistance.
5. The drain hose high loop is near the maximum allowable pump head height; the drain pump is operating at its efficiency limit.
6. The garbage disposal (if connected) has excessive internal debris or a clogged grinding chamber, creating increased drain backpressure.
7. The drain check valve spring is aged or the valve flap is sticking; partial backflow during draining reduces the effective drain volume.

Self-Check Steps

1. Remove the bottom filter assembly (coarse and fine filters), soak them in hot water with dish soap for 15 minutes, then thoroughly scrub with a soft brush — pay special attention that the fine filter mesh is not blocked by grease film.
2. Flush the sump area beneath the filters with hot water, ensuring the passage from the sump to the drain pump inlet is clear of fibrous clogs.
3. Disconnect the drain hose at the dishwasher end and shine a bright flashlight down the hose to inspect the inner wall for grease buildup (brown-black slimy substance); if present, clean it with a long pipe brush or drain hose cleaner.
4. After the next normal wash cycle, add one cup of white vinegar to the bottom of the dishwasher and run a short wash cycle (no dishes) to use the vinegar’s acidity to dissolve grease and detergent residue in the drain line.
5. Inspect and run the garbage disposal (if connected), ensuring no large debris accumulation in the grinding chamber is obstructing drainage.
6. If drain speed remains noticeably slow after these cleaning measures, it may be necessary to lower the drain hose high loop height (reduce pump head) or inspect the drain pump impeller for entanglement — contact KitchenAid after-sales service.