What to do if the Auto Clean function of the Mijia Air Conditioner Pro Eco Inverter 1.0 HP cannot be used?

If the Auto Clean function of the Mijia Air Conditioner Pro Eco Inverter 1.0 HP cannot be used, please follow these steps:
1. Make sure you have correctly activated the Auto Clean function by pressing and holding the [ECO] and [Timer] buttons simultaneously for 3 seconds;
2. Please check whether the air conditioner is operating outside the allowed conditions for the Auto Clean function to start;
(1). Indoor temperature is above 30℃ and outdoor temperature is above 40℃;
(2). Indoor temperature is above 38℃;
(3). Outdoor temperature is above 40℃;
(4). Indoor temperature is below 16℃;
(5). Outdoor temperature is below 0℃.
3. If the issue still cannot be resolved, please request after-sales service for inspection.