First, make sure the power outlet is functioning and the power cord is securely connected;
Check whether the filter is correctly installed and properly seated;
Ensure the main unit, filter compartment cover and top grille are fully closed and flush with the surface;
If all components are correctly installed, the purifier will emit a beep and display the Mijia logo on the screen briefly after power is connected. Once this happens, press the on/standby button to turn on the device;
If you hear a beep and see a message indicating the compartment cover or top grille is not closed, this means the unit has power but those parts are not correctly secured. Please reinstall them;
If the device shows no response after pressing the on/standby button, please contact after-sales support for assistance.