Microsoft KB Archive/906103

= Xbox 360: The power supply light is not illuminated =

Article ID: 906103

Article Last Modified on 4/25/2007

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APPLIES TO


 * Microsoft XBox 360 Video Game System
 * Microsoft Xbox

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SYMPTOMS
The Xbox 360 console power supply light is not illuminated.



CAUSE
If the power supply light is not illuminated, the power supply typically is disconnected from the wall socket.

However, if the light is not illuminated but the power supply is connected to the wall socket, there may be a problem with the power supply.



THINGS TO TRY
 Make sure that the power supply is connected to the wall socket with the power cord. For more information about how to connect and disconnect the Xbox 360 power supply, click the following article number to view the article in the Microsoft Knowledge Base:

906205 Xbox 360: How to connect and disconnect the Xbox 360 power supply

 Determine whether there is a switch that must be turned on for the wall socket to provide power. If the power supply is firmly connected and there is no switch for the socket, try to use a different wall socket.  Turn off the console. Disconnect the cord that connects the power supply to the console. To do this, follow these steps:  Unplug the power cord from the wall socket.</li> Disconnect the power cord from the console.</li></ol> </li> If the outlet is working but the Xbox 360 console does not turn on, the power cords may be damaged. Remove the AC power cord from the wall outlet and from the Xbox 360 console power supply. Examine the AC power cord for damage. Examine the DC cord that is attached to the power supply unit for damage. If either cord is damaged, do not use them. Contact Xbox Customer Support.</li> Let the power supply cool for several hours. The power supply may have overheated. The power supply should again work after it cools. Adequate cooling may take several hours. Make sure that the power supply has sufficient ventilation during the cooling period. Do not try to turn on the console during the cooling period.</li> Reconnect the cords, and then try to turn on the console.</li> If you have another power cord and power supply available, use it to test the console. If the console now powers on, you may need a replacement power supply.</li></ol>

<div class="moreinformation_section">

MORE INFORMATION
The power supply has several built-in safeguards to help prevent damage to either the console or the power supply itself. The power supply will automatically turn off in cases of too much current flow, too-high voltage, or too-high temperature. When such a condition exists, the light on the power supply will turn from green (normal) to orange or to red, or the light will turn off. When the power supply light is green, the power supply is correctly functioning.

Follow these safeguards to help the power supply work:
 * Do not block any ventilation openings in the power supply.
 * Do not put the power supply on a bed, on a sofa, or on any other soft surface that may block ventilation openings.
 * Do not put the power supply in a confined space, such as a bookcase, a bookcase with doors, an enclosed a rack, or a stereo cabinet, unless the space is well ventilated.
 * Do not put the power supply on a stereo speaker, an amplifier, or a heat source such as a radiator, a heat register.
 * Plug the power supply directly into a known good wall outlet. Do not use extension cords or power strips.
 * If you are not sure about the reliability of an AC power outlet, power circuit, or power cabling, do not use it. Contact an electrician.

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