AC - 三星 洗衣机

中文

含义

AC表示洗衣机主控板与显示板（或驱动板）之间的通讯异常。洗衣机内部各控制单元之间通过数据总线进行通讯，当总线信号中断或受到干扰时，会触发此故障代码。

常见原因

1. 主控板与显示板之间的连接线束松动、断裂或接触不良。
2. 线束插头氧化或进水受潮，导致信号传输不稳定。
3. 主控板或显示板上的通讯电路元件损坏。
4. 电磁干扰（如附近有大功率变频设备）影响通讯信号。
5. 洗衣机受到剧烈撞击或运输振动导致内部连接器脱落。

自助排查

1. 拔掉电源插头，等待5分钟后重新插电，观察故障代码是否消失。
2. 拆开洗衣机上盖或控制面板，检查主控板与显示板之间的所有连接器，重新插拔确保接触良好。
3. 检查线束是否有断裂或破损，特别关注弯折处和靠近振动部件的位置。
4. 用干布擦拭连接器端子，去除氧化层或水分。
5. 若故障仍然存在，可能需要更换主控板或显示板，请联系售后。

English

Meaning

AC indicates a communication error between the main control board and the display board (or drive board) of the washer. The control units communicate via a data bus, and when the bus signal is interrupted or corrupted, this fault code is triggered.

Common Causes

1. Loose, broken, or poorly contacting wiring between the main board and display board.
2. Oxidized or moisture-contaminated connectors causing unstable signal transmission.
3. Damaged communication circuit components on either board.
4. Electromagnetic interference from nearby high-power variable-frequency equipment.
5. Impact during transport causing internal connectors to detach.

Self-Check Steps

1. Unplug the washer for 5 minutes, then re-plug and check if the code clears.
2. Remove the top cover or control panel and reseat all connectors between boards.
3. Inspect wiring for breaks or damage, especially at bend points and near vibration sources.
4. Wipe connector terminals with a dry cloth to remove oxidation or moisture.
5. If the fault persists, the main board or display board may need replacement — contact Samsung.