Why does the display panel of the Mijia Air Conditioner Pro Eco Inverter 1.5 HP show rotating lines and not turn off automatically after powered off?

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.