What should I do if the USB port shows a fault and shuts down?

If a fault condition exists, the Fault Icon on the LCD screen will flash and the USB Ports will automatically shut down. Disconnect the USB-powered device immediately and press the USB Power Button to turn off the USB Ports, then allow the unit to cool down for several minutes before trying again. Ensure that the total draw of all USB devices plugged in does not exceed 2.1A (5V each).