Your power adapter comes with a removable AC plug that has the blades for inserting into an electrical socket. Check the plug, USB-C cable and USB-C portsįind out how to check the AC plug, USB-C cable and USB-C ports. If the spark comes from somewhere other than the blades of the plug, if you experience any damage or discolouration of the adapter, or if you have other concerns about sparking, contact Apple. This is usually normal and can occur when you plug any electrical appliance into a live socket. Sometimes when you plug the power adapter into a plug socket, you may see a spark. Look for sparks, discolouration or damage If your power adapter continues to turn itself off when connected to a known-good socket, take your adapter to an Apple Authorised Service Provider or Apple Store for further evaluation. Plugging the power adapter into an uninterruptible power supply (UPS) or a socket 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 socket you're using. The power adapter will shut off automatically when its built-in voltage protection feature senses line noise from a socket. If your Mac laptop starts charging after you've plugged the power adapter back in, this may indicate an issue with line noise (disruption caused by stray electromagnetic signals) from your plug socket. Unplug the power adapter from the wall, wait 30 seconds, then plug the adapter back in: If you're not using a Mac with Apple silicon, reset the SMC. If your Mac still isn't charging, shut it down and close the display for 30 seconds, then open the display and try charging it again. If the plug socket is working, connect your USB-C power adapter to it and try charging your Mac. Unplug your USB-C power adapter from the plug socket, then plug in a known-good device, such as a lamp, to confirm it turns on correctly. Make sure you’ve connected your USB-C power adapter to a working plug socket. If your power adapter isn’t charging your Mac laptop, unplug the power adapter from the plug socket, wait a few seconds, then plug it back in.
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