Last night, I heard a spark noise while my mac power adaptor was connected, and the charger stopped charging my machine. There was no light on the connector. I should also say that the cable attaching to the adaptor was torn. So after reading instructions for dismantling the charger, I cracked it open and cut the cable before the plastic piece inside the charger. Then, I tested if the AC charger was having any output DC voltage with a multimeter. But it did not detect any. Now, do I have to assume that the unit is dead or is there some fuse which needs to be replaced?

1 Answer 1


There is a fuse in the charger, but replacing fuse is not recommended.

And this is not the only surge protection unit. I recommend to test with another working charger and your mac and if your mac works well with another charger, then get another Apple charger.

  • 1
    Thanks for replying! Would you tell the reason why not replacing it?
    – developer
    Feb 7, 2019 at 13:28
  • I think there can be some fault on laptop side: damaged input connector, etc.
    – z0nam
    Feb 8, 2019 at 5:21

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