The rotating lines on the display panel after the Mijia Air Conditioner Pro Eco Inverter 1.5 HP is powered off are part of the device’s normal post-shutdown process. Although the power has been turned off, the display does not turn off immediately because the indoor unit's fan continues to operate for a short period.
Specifically, the reasons for this are as follows:
1. When the air conditioner is turned off, the evaporator can still be cold and retain a significant amount of condensation. To avoid moisture accumulation, the indoor unit's fan keeps running to help dry the internal components;
2. Continuous airflow during shutdown prevents excess moisture from lingering inside the indoor unit. This helps inhibit the growth of mold or bacteria and avoids unpleasant odors caused by a humid, sealed environment;
3. The rotating lines on the display indicate that the fan is still operating. Once the drying process is complete and the fan stops, the display will automatically turn off.