中文
含义
控制板硬件故障。主控板检测到内部关键电路异常（如EEPROM读写错误、主芯片自检失败、电压基准异常等），无法正常运行洗涤程序。
常见原因
- 主控芯片（MCU）损坏或程序跑飞
- EEPROM存储器数据损坏或读写异常
- 主控板供电稳压电路故障（5V/3.3V异常）
- 板级受潮导致漏电或短路
- 雷击或电网浪涌损坏主控板
- 晶振失效导致主芯片无法正常工作
自助排查
- 断电10分钟以上（彻底释放残余电荷），重新上电观察是否恢复
- 检查家中电压是否稳定，排除电压异常导致的保护性报错
- 打开控制盒检查主控板有无明显烧焦、鼓包、电解电容漏液
- 检查主控板有无进水、受潮痕迹，用吹风机冷风档吹干后重试
- 以上均无效则主控板硬件损坏，需更换控制板总成并重新配对程序
English
Meaning
Control board hardware failure. The main control board detects an internal critical circuit fault (EEPROM read/write error, MCU self-test failure, abnormal voltage reference, etc.) and cannot execute the wash program.
Common Causes
- Damaged MCU or program crash
- Corrupted EEPROM data or read/write failure
- Faulty voltage regulator circuit on the mainboard (abnormal 5V/3.3V)
- Moisture ingress causing leakage or short circuits on the board
- Lightning strike or power surge damaging the mainboard
- Failed crystal oscillator preventing the MCU from clocking
Self-Check Steps
- Power off for at least 10 minutes (for full discharge), then restart and check for recovery
- Verify stable household voltage to rule out protective false alarms
- Open the control box and inspect the mainboard for burn marks, bulging components, or leaking capacitors
- Check the board for water ingress or condensation; dry with a hair dryer on cool setting and retry
- If none of the above resolves the issue, the mainboard is hardware-failed — replace the control board assembly and re-pair the program