Mac Charger Not Working? Try a different power cable or adapter

It may be that the fault resides with the power cable. If you've got a friend with a Mac power cable that fits your machine, try it to see if that solves the problem. If it does, it could be a simple fix that involves finding a secondhand power cable on eBay (we'd advise against buying third-party power cables that aren't made by Apple, as they are much more likely to be faulty and possibly dangerous).

Read full content : Mac Charger Not Working? Here’s Top 4 Things You Can Do

If you recently had a power cut, that could be responsible: your power adaptor could have been damaged in a power surge and you may need a new one.

Finally, it's possible that the cable is loose, and pulling it out and plugging it in again will solve the problem. But we doubt it will be that easy.

Unplug all the accessories (such as printers and USB hubs) attached to your Mac. It could be that one of your peripherals is causing problems with the startup sequence.