LD - daikin Air Conditioner

中文

含义

LD 为功率晶体管过热保护。功率模块中的晶体管温度过高。

常见原因

1. 散热器散热不良
2. 室外环境温度过高
3. 功率晶体管过载
4. 散热风扇故障

自助排查

1. 清洁散热器及风扇
2. 检查散热风扇运转
3. 改善通风
4. 联系大金售后

English

Meaning

Power transistor overheat protection. Transistor temperature in the power module is too high.

Common Causes

1. Heat sink thermal performance degraded
2. High ambient temperature
3. Power transistor overload
4. Cooling fan failure

Self-Check Steps

1. Clean heat sink and fan
2. Check cooling fan operation
3. Improve ventilation
4. Contact Daikin service