12 - mitsubishi Air Conditioner

中文

含义

故障码 12 为 PFC 故障。功率因数校正电路异常。

常见原因

1. PFC 模块过热
2. 电网电压波动
3. PFC 电感异常

自助排查

1. 检查电源电压
2. 断电重启
3. 联系三菱电机售后

English

Meaning

Code 12: PFC fault. Power factor correction circuit abnormality.

Common Causes

1. PFC module overheat
2. Grid voltage fluctuation
3. PFC inductor abnormal

Self-Check Steps

1. Check supply voltage
2. Power cycle
3. Contact Mitsubishi service