中文
含义
室内风机故障——电机不转、转速异常或反馈信号丢失。
常见原因
- 室内风机电机绕组烧毁或卡死
- 风机电容损坏（容量下降或击穿）
- 风机霍尔反馈元件损坏
- 电机启动器/驱动模块故障
- 风轮被异物卡住或积灰严重
- 主板至风机间的连接线松动或断裂
自助排查
- 断电后手动拨动风轮，检查是否卡滞
- 清理风轮及风机周围的灰尘和异物
- 用万用表测量风机电容容量是否在标称值±5%范围内
- 上电后观察风机是否短时启动后停止
- 以上无效则需更换风机电机或主控板
English
Meaning
Indoor fan motor fault — motor not spinning, abnormal speed, or RPM feedback signal lost.
Common Causes
- Burned-out or seized indoor fan motor winding
- Damaged fan capacitor (reduced capacitance or shorted)
- Faulty Hall-effect RPM sensor
- Motor starter/driver module failure
- Fan wheel obstructed by debris or heavy dust buildup
- Loose or broken wiring between mainboard and fan motor
Self-Check Steps
- Power off and manually rotate the fan wheel to check for binding
- Clean dust and debris from the fan wheel and surrounding area
- Measure the fan capacitor with a multimeter; should be within ±5% of the rated value
- Power on and observe if the fan briefly starts then stops
- If none of the above work, replace the fan motor or main control board