Plugging the power adapter into an uninterruptible power supply (UPS) or an outlet that's on a different circuit can help. Some possible sources of line noise include lights with ballasts, refrigerators, or mini-refrigerators that are on the same electrical circuit as the outlet you're using. The power adapter automatically shuts off when its built-in voltage protection feature senses line noise from an outlet. If your MacBook starts charging after you plug the power adapter back in, this might indicate an issue with line noise (disruption caused by stray electromagnetic signals) from your power outlet.
#APPLE MAC PRO NOT CHARGING MAC#
If you're not using a Mac with Apple silicon, reset the SMC. If your Mac still won't charge, shut down your Mac and close the display for 30 seconds, then open the display and try to charge your Mac again. If the power outlet works, connect your USB-C power adapter again and try to charge your Mac. Unplug your USB-C power adapter from the power outlet, then plug in a known working device, such as a lamp or clock to confirm that it will power on.
![apple mac pro not charging apple mac pro not charging](https://www.howtogeek.com/wp-content/uploads/2021/05/Apple-MacBook-plugged-into-a-charger.jpg)
Make sure that you're connecting your USB-C power adapter to a working power outlet.
![apple mac pro not charging apple mac pro not charging](https://beebom.com/wp-content/uploads/2021/01/Macbook-pro-facing-charging-issue-feat..jpg)
If your USB-C power adapter isn't charging your MacBook, MacBook Air, or MacBook Pro, first unplug the power adapter from the power outlet, wait a few seconds, and plugin it back in.