We’re sorry to hear that you’re having trouble with your UHE-CMTF91 humidifier. We understand how frustrating it can be when a new device doesn’t work as expected, especially after thoroughly reviewing the manual. Here are a few troubleshooting steps that might help: Double-check the setup: Ensure the tank is properly seated and filled with water, and that the base is level. Power connection: Verify that the power cord is securely plugged in and the outlet is functioning. Reset the unit: Try unplugging the humidifier for a few minutes, then plug it back in and turn it on. Clean the unit: Sometimes debris or dust during storage can interfere with operation; cleaning the base and mist nozzle might help.