中文
含义
洗衣机功率驱动模块异常电机无法正常启动或调速。
常见原因
- 电机启动瞬间电流过大导致功率器件击穿
- 散热不良导致功率模块过热损坏
- 驱动电路控制信号异常
- 电机绕组短路导致持续大电流
- 电网电压瞬间波动导致功率管损坏
自助排查
- 断电后拆下后盖目视检查驱动板功率器件是否有炸裂烧焦痕迹
- 用万用表测量功率管各引脚间阻值判断是否击穿
- 检查散热器是否松动或积尘严重
- 此故障需要专业工具诊断建议联系售后更换驱动板
English
Meaning
The washer power drive module is abnormal; the motor cannot start or regulate speed properly.
Common Causes
- Excessive motor inrush current causing power device breakdown
- Poor heat dissipation causing power module overheating
- Drive circuit control signal abnormal
- Motor winding short causing sustained high current
- Grid voltage transient causing power device damage
Self-Check Steps
- Disconnect power remove rear cover visually inspect drive board power devices for cracking/scorch marks
- Measure resistance between power device pins with multimeter to check breakdown
- Check if heat sink is loose or heavily dust-clogged
- This fault requires professional diagnostic tools; contact after-sales for drive board replacement