9C - 三星 洗衣机

中文

含义

9C表示洗衣机检测到电源电压超出正常工作范围（过高或过低）。三星洗衣机的工作电压范围为交流187V-253V（50Hz）。当电网电压波动超出该范围时，保护电路会触发此故障代码以保护电机和电子元件。

常见原因

1. 家中供电线路老化或接触不良，导致电压不稳定。
2. 同一线路上有大功率电器（空调、烤箱等）同时工作，引起电压跌落或波动。
3. 电网本身电压偏低或偏高（如农村地区、用电高峰时段）。
4. 洗衣机电源线插头或插座接触不良，产生压降。
5. 洗衣机内部电源板整流或稳压电路故障，误报外部电压异常。

自助排查

1. 用万用表测量插座电压，观察是否在187V-253V范围内；最好在不同时段多次测量。
2. 拔掉同一线路上的其他大功率电器，单独给洗衣机供电看故障是否消除。
3. 检查电源线插头和插座是否有烧焦、变形或松动的迹象，必要时更换插座。
4. 如果家中电压长期偏低（低于190V），建议安装稳压器或联系电力公司。
5. 若电压正常但故障代码仍出现，可能是洗衣机内部电源板故障，需联系售后检修。

English

Meaning

9C indicates the washer detected that the power supply voltage is outside the normal operating range (either too high or too low). Samsung washers typically operate at AC 187V-253V (50Hz). When the grid voltage fluctuates beyond this range, the protection circuit triggers this code to protect the motor and electronics.

Common Causes

1. Aged or loose household wiring causing unstable voltage.
2. High-power appliances (A/C, oven) on the same circuit causing voltage drop or fluctuation.
3. Intrinsically low or high grid voltage (rural areas or peak usage hours).
4. Poor contact at the power cord plug or socket creating a voltage drop.
5. Internal power board rectifier or regulator circuit fault causing false detection.

Self-Check Steps

1. Use a multimeter to check the outlet voltage — confirm it stays within 187V-253V. Measure at different times of day.
2. Unplug other high-power appliances from the same circuit and test the washer alone.
3. Inspect the power cord plug and socket for burns, deformation, or looseness. Replace the socket if needed.
4. If household voltage is consistently low (below 190V), install a voltage stabilizer.
5. If voltage is normal but 9C persists, an internal power board fault may exist — contact Samsung.