iMac won’t turn on
It’s been at least a month since my iMac hasn’t turned on even after unplugging it and plugging it back in. I was using it as normal and all of the sudden the screen goes black and didn’t start up again.
iMac 27″
Question marked as
Try another socket or if you are using a power strip, especially if it's 5+ years old try plugging directly into the wall. You don't mention the model year so it's a little difficult to offer any help and you make no mention of any troubleshooting other than unplugging and re-plugging it back in.
So, please follow the steps in If your Mac won't turn on