For the Mijia Air Conditioner Pro Eco 3.5 kW, it is recommended to run the Auto Clean function once a month. If the operating environment is poor, such as in areas with a lot of dust, the interval should be shortened accordingly.
Here is more information about Auto Clean function of the device for your reference:
1. When the air conditioner is off, simultaneously press and hold the ECO button and the timer button for more than 3 seconds to enable the Auto Clean function;
2. The remote control display will show "Auto Clean", and the air conditioner display will start blinking. The air conditioner will then run for about 40 minutes before automatically exiting the Auto Clean mode and shutting down;
3. The duration displayed on the remote control and the air conditioner display vary according to specific conditions;
4. There will be noise, breeze, and cold air during the Auto Clean operation, which is normal;
5. When the ambient temperature is too high or too low, the air conditioner will automatically activate the protection function, which will cause the Auto Clean function to be exited or fail to start;
6. Auto Clean can only clean the heat exchanger.