why is my Xbox 360 power block flashing dull orange even when not plugged into mains?

Hi! I'm Rostom, an Independent Advisor. I will be glad to help you here.

If everything is working so far with your console and PSU or power supply unit when you turn them on, it should all be fine.

I think it may be normal that your PSU behaves that way (flashing orange light) because the main plug is switched off, thus, cutting the power. I would suggest to unplug it directly from the main outlet before switching your main plug off.

You can learn more about the Xbox 360 power supply troubleshooting here https://support.xbox.com/help/xbox-360/console/...

Hi! I'm Rostom, an Independent Advisor. I will be glad to help you here.

If everything is working so far with your console and PSU or power supply unit when you turn them on, it should all be fine.

I think it may be normal that your PSU behaves that way (flashing orange light) because the main plug is switched off, thus, cutting the power. I would suggest to unplug it directly from the main outlet before switching your main plug off.

You can learn more about the Xbox 360 power supply troubleshooting here https://support.xbox.com/help/xbox-360/console/...

If I unplug everything..and then plug in the power supply..the light stays orange..when I plug the power cable into the xbox..it flashes white and then goes out completely..the console never even attempts to turn on..The console worked flawlessly last night.

I know my question is, is that normal when the light is orange and I pull the power plug out the power is flashing 1 sec. red and go off is that red flashing normal?

Check the light on your power supply

Solid green or solid orange light: Your power supply is working. If your console won’t turn on, try our

Xbox 360 No Power Solution.

Flashing orange, solid red, or no light: Your power supply may need to be replaced. Try the following solutions:

1. Plug your console’s power supply into a different electrical outlet. Do not use a surge protector.
   
2. If the power supply light is solid red or flashing orange, unplug the power supply and let it cool for 30 minutes. Then, plug the power supply back into the outlet.
   

If your power supply light is still flashing orange, solid red, or unlit, your power supply needs to be replaced. You can
order a replacement Xbox 360 power supply from our Xbox Online Service Center. Console registration is required to replace the power supply under warranty (the power supply
warranty is the same as your console warranty).