If the Mijia Smart Air Purifier Max can't be turned on, please follow the steps below to troubleshoot:
1. A faulty power outlet or power cord can prevent the device from turning on. Confirm that the power outlet is working and that the power cord is properly connected.
2. If the filter is not installed correctly, the device will not be able to power on. Check if the filter is installed correctly and evenly, and ensure the filter and filter compartment door are properly installed without any gaps.
3. Dirt or debris on the sensors or internal components may prevent the device from turning on; please clean and maintain it regularly.
4. If the device still cannot be turned on, please contact the after-sales service center.