中文
含义
uL（Unbalanced Load）表示洗衣机检测到桶内衣物分布严重不均匀，无法安全进入高速脱水阶段。肯摩尔洗衣机在脱水加速阶段通过悬挂位移传感器或电机电流波动检测滚筒/波轮的偏心程度。当偏心量超过安全阈值时，控制板显示 uL 代码并自动降低脱水转速或反复进行”注水-抖散-排水”循环以尝试重新平衡衣物。若多次尝试后仍无法平衡，机器将终止程序并持续闪烁 uL 报警。此保护机制的目是防止剧烈振动损坏悬挂系统和机身结构。
常见原因
- 洗涤的衣物种类差异过大，例如同时放入一件厚重的浴巾和几双轻薄袜子，轻重搭配不当导致同桶分布严重不均。
- 大件衣物（如床单、被套、毛毯）在洗涤过程中团成一团，形成球状包裹物将其他衣物卷在内部无法分散。
- 顶开式洗衣机波轮下方的衣物卡在波轮与桶壁之间，或前开式洗衣机的密封圈唇口夹住小件衣物，导致旋转阻力异常。
- 洗衣机四个底脚未调水平或地面不平整，机身本身存在微小倾斜，正常负载也会因重心偏移被视为不平衡。
- 悬挂系统（吊杆减震器或弹簧）单侧老化失效，桶体自然向一侧下沉，脱水时偏心程度被放大。
- 运输螺栓未完全拆除（新装机常见），限制了桶体的正常摆动行程，导致振动传感器异常触发。
自助排查
- 打开机盖或机门，将桶内衣物全部取出，抖散所有缠绕成团的衣物，将床单被套等大件从球状展开铺平后重新均匀放入桶内。
- 将大件物品与小件衣物混合搭配：一条床单搭配几件衬衫或 T 恤，使桶内各方位重量分布趋于均匀。避免单洗一条厚重毛巾或一件厚外套。
- 用手按压桶内衣物，确认没有小件衣物被夹在门封圈（前开式）或波轮缝隙（顶开式）中。将压在底部的衣物手动翻松。
- 检查洗衣机四个底脚的调平情况：双手按住洗衣机对角摇晃，如果机身明显晃动，用扳手调节底脚高度直到四个脚全部踏实地面且机身水平。
- 确认搬新机时位于背部或底部的运输固定螺栓/块已全部移除——若未移除，拆下这些螺栓并保留以备日后搬运再用。
- 观察脱水时机身晃动幅度：手放在机顶感受振动，如果振动剧烈但底脚已调平，可能是悬挂系统有一侧减震器或弹簧失效，悬挂系统问题需要拆机检查。
- 如果经过手动抖散和调平后 uL 代码仍然频繁出现，尤其是在少量轻负载情况下触发，可能为控制板的平衡检测传感器基准值偏移，联系肯摩尔售后检修。
English
Meaning
uL (Unbalanced Load) indicates that the washer has detected a severely uneven distribution of laundry in the drum and cannot safely enter the high-speed spin phase. During the spin acceleration phase, Kenmore washers detect the eccentricity of the drum/pulsator via suspension displacement sensors or motor current fluctuations. When the eccentricity exceeds the safety threshold, the control board displays the uL code and automatically reduces the spin speed or repeatedly runs a “water fill–tumble redistribute–drain” cycle to attempt rebalancing the load. If balance cannot be achieved after multiple attempts, the machine terminates the cycle and continuously flashes the uL alert. This protection mechanism is designed to prevent violent vibration from damaging the suspension system and cabinet structure.
Common Causes
- The laundry types in a single load vary too greatly — for example, washing one heavy bath towel together with a few lightweight socks, where the poor weight pairing leads to severely uneven distribution in the drum.
- Large items (such as bedsheets, duvet covers, blankets) bunch up into a ball during the wash cycle, forming a spherical bundle that traps other items inside and prevents them from spreading out.
- In top-loader washers, clothing gets trapped between the pulsator and tub wall; in front-loaders, small items get caught in the door gasket lip, causing abnormal rotational resistance.
- The four leveling feet of the washer are not adjusted, or the floor is uneven. The cabinet itself has a slight tilt, so even a normal load is judged as unbalanced due to the shifted center of gravity.
- One side of the suspension system (suspension rod dampers or springs) has aged and failed, causing the tub to naturally sag to one side. The eccentricity is amplified during spin.
- The shipping bolts have not been fully removed (common with new installations), restricting the normal swing range of the tub and causing the vibration sensor to trigger abnormally.
Self-Check Steps
- Open the lid or door, remove all laundry from the drum, shake out and untangle all bunched-up items, unfold large items like sheets and duvet covers from ball shapes and spread them flat, then reload evenly into the drum.
- Mix large items with smaller pieces: pair one bedsheet with several shirts or T-shirts to promote even weight distribution in all directions around the drum. Avoid washing a single heavy towel or a single thick jacket alone.
- Press down on the laundry in the drum to confirm no small items are trapped in the door gasket (front-loader) or the pulsator gap (top-loader). Manually loosen and fluff items that are compressed at the bottom.
- Check the level of all four washer feet: press down on opposite corners of the washer top and rock it. If the cabinet noticeably wobbles, use a wrench to adjust the feet height until all four feet are planted firmly on the floor and the cabinet is level.
- Confirm that all shipping bolts/blocks (usually on the back or bottom of the machine) have been completely removed from a newly installed unit. If still in place, remove them and keep them for future relocation use.
- Observe the cabinet shake amplitude during spin: place your hand on the washer top to feel the vibration. If vibration is violent but the feet are already level, one side of the suspension may have faulty dampers or springs — suspension issues require disassembly inspection.
- If the uL code still appears frequently after manual redistribution and leveling, especially when triggered with a small light load, the control board’s balance detection sensor reference may have drifted. Contact Kenmore after-sales service for inspection.