I have an original Wii model that I bought recently. I have never used a Wii before, and in the user manual, it says that the power light should be red when off. However, sometimes it is yellow, and I am worried that this may be a malfunction. What does the yellow light mean?
Reference to the above question: techforums.nintendo.com/thread/2328
The yellow light indicates that the Wii is off but the WiiConnect24 is on, operating in standby mode. You can turn this light off by going to (Wii Icon) > Settings > WiiConnect24 > WiiConnect24 > Off and select Confirm.
At times, you will also see the Wii's disc slot glow. This means that there is new information received over the internet (messages, new Shop content, forecast alerts, etc.), and can be adjusted, or even turned off, at any time.