Airport extreme base station won't turn on
Try disconnecting all power supplies from the outlet/power source and the device. After 3 minutes hold the reset button down on the AEBS and then connect the power. Continue to hold the reset button down until the light on the front starts flashing amber fast or 5 seconds has elapsed (which ever happens first). If after the factory restore [not hard reset] that if the device doesn't turn on in a minute it's AppleCare time. The AEBS should be covered under the AppleCare Protection Plan of an Apple computer or AppleTV purchased within two years of the AEBS. If they won't swap it out for you, ask for an exception :)