The Mijia Smart Air Purifier with Humidification Pro operates quietly, and no sound is produced when the buttons are pressed during normal operation. Therefore, the absence of a sound when pressing the buttons is normal and does not indicate a malfunction.
If the buttons on the Mijia Smart Air Purifier with Humidification Pro are unresponsive, please refer to the following troubleshooting steps:
1. Check whether the device is properly connected to the power supply and powered on.
2. If there are large water droplets on the buttons, they may interfere with button functionality. Wipe the buttons dry and try again.
3. Make sure your fingers are clean and dry when operating the touch buttons, then try again.
4. Disconnect and reconnect the power supply, then wait for the device to restart and try operating the buttons again.
5. If the buttons remain unresponsive, contact your local after-sales service center for further support.