中文
含义
E7 为室外风机运行异常。室外风机负责冷凝器散热，风机故障会导致冷凝压力和温度升高，系统保护停机。
常见原因
- 风机电容容量下降或失效
- 风机电机绕组开路或短路
- 风扇叶片被杂物卡住
- 电机轴承磨损卡死
- 风机转速反馈信号缺失
自助排查
- 安全提示：室外机检修需注意安全，必要时应由专业人员操作。
- 断电后手动拨动室外风机扇叶，检查是否转动灵活。
- 检查风机电容外观是否鼓包，用万用表电容档测量容量是否合格。
- 用万用表测量电机绕组阻值，如开路或短路需更换电机。
- 清理扇叶及周围杂物，确保风机无障碍运转。
English
Meaning
Outdoor unit fan motor abnormal. The outdoor fan dissipates heat from the condenser. A fan failure causes condensing pressure and temperature to rise, triggering system protection shutdown.
Common Causes
- Fan capacitor degraded or failed
- Fan motor winding open or short
- Fan blade obstructed by debris
- Motor bearing worn and seized
- Fan speed feedback signal missing
Self-Check Steps
- Safety note: outdoor unit servicing requires caution; have a professional do it if necessary.
- Power off and manually rotate the outdoor fan blades to check for free movement.
- Check whether the fan capacitor is bulging; use a multimeter capacitance function to measure its value.
- Measure motor winding resistance with a multimeter; replace the motor if open or short circuit is found.
- Clean the fan blades and surrounding area to ensure obstruction-free operation.