中文
含义
室外风机故障。室外轴流风扇不转或转速异常，导致冷凝器散热不良，高压侧压力升高，系统触发高压保护停机。
常见原因
- 室外风机电机绕组烧毁或绝缘击穿
- 电机启动电容鼓包或容量衰减
- 风机继电器触点粘连或烧损
- 电机轴承进水生锈导致转子卡死
- 冷凝器翅片严重堵塞散热不良导致电机过热保护
自助排查
- 断电观察室外风机叶片能否自由转动，有无卡死
- 用万用表测量风机电机绕组电阻，检查是否断路或短路
- 检查风机启动电容是否鼓包、漏液
- 清除冷凝器翅片间积尘和杂物，确保散热良好
English
Meaning
Outdoor fan failure. The axial fan motor does not spin or runs at abnormal speed, causing poor condenser heat dissipation, high-side pressure rise, and system high-pressure protection shutdown.
Common Causes
- Burned-out outdoor fan motor winding or insulation breakdown
- Bulging or degraded fan start/run capacitor
- Welded or burned fan relay contacts
- Water-damaged motor bearings causing rotor lock
- Severely blocked condenser fins reducing airflow and triggering motor thermal protection
Self-Check Steps
- Power off and manually verify the fan blade rotates freely without binding
- Measure the fan motor winding resistance with a multimeter to check for open or short circuits
- Inspect the start/run capacitor for bulging or leaking electrolyte
- Clean dust and debris from the condenser coil fins to restore proper heat dissipation