my mac's usb c power adapter is not working. what to do?

mehul157 Said:

"my mac's usb c power adapter is not working. what to do?: The problem is not with the mac, just with the charging brick. I have tried using this charging brick on other macs and the same thing is happening. It charges the device for a sec and then stops."

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Perhaps this is a Faulty Device?:

Is this the same power brick that came with your Mac? If so, contact Apple Support, asking them if they can replace it, if it is still covered under warranty. Be certain not to remove the serial number sticker from the power brick.

Contact Apple Support:

• Contact Us - Choose Locations
• U.S.A. (800)MY-APPLE
• Proceed from there as necessary

Note: Phone calls are taking a bit to go through at the moment, due to lots of calls. With the Coronavirus Pandemic, many are at home at the moment, with much time on their hands to contact Apple. So, just stay on the line, and you will get through :)

Try connecting another power brick of same wattage as a test if possible.

If you are sure that MBP is fine, there is no point in running Apple Diagnostics. https://support.apple.com/en-us/HT202731

Go step by step and test.

1. Reset  SMC:   How to reset the SMC of your Mac - Apple Support   Choose the appropriate method.

    Quote:

    Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,

    and other features.

2 Startup in Safe mode. https://support.apple.com/en-gb/HT201262

    To leave Safe Mode, choose “Restart” at the bottom.

    Quote:

     Safe mode prevents your Mac from loading certain software when it starts up, including login items, 

     system extensions not required by macOS,

     and fonts not installed by macOS. It  also does a basic check of your startup disk, 

     similar to using First Aid in Disk Utility.

     And it deletes some system caches, including font caches and the kernel cache, 

     which will be created again automatically as needed.

3. Contact Apple.

    If steps posted above do not help,

    Click inside the box to choose an option.

    https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362

mehul157 Said:

"my mac's usb c power adapter is not working. what to do?: actually, the problem is in the power brick, my mac is fine. Whenever I plug in the adapter it charges my mac for 1 sec. i guess there is fault in the adapter. How to fix it?"

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Please Confirm:

Did you try what @dominic23 said in the first bullet: Reset SMC

Try performing the reset. It might take up to 3 tries.

mehul157 Said:

"my mac's usb c power adapter is not working. what to do?: 61 watt usb c power adapter not working, when i plug it in my mac or any other device it charges for 1 sec and shuts off. [...]"

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Single Out the User:

What happens when you log in to a different user? Do you no longer get this error? If so, then it is an issue with the current account. If not, then is its an issue with the device itself.

mehul157 Said:

"my mac's usb c power adapter is not working. what to do?"

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More on Troubleshooting Power:

A. Please Clarify:

• Did you install an update?
• Have you had battery issues before?
• Has this Mac been serviced recently?
• What were you working on when this happened?

B. A Few Links to Refer to Power:

• About Mac Notebook Batteries - Apple Support

• How to Turn your Mac On or Off - Apple Support

• Charge the MacBook Pro Battery - Apple Support

• If your Mac Battery won't Charge - Apple Support

mehul157 Said:

"The problem is not with the mac, just with the charging brick. I have tried using this charging brick on other macs and the same thing is happening. It charges the device for a sec and then stops."

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Why a Mac?;

Point is: When you make a software installs or hardware changes to your Mac, things can act up become manipulated, technically. So, that's how the Mac can play its own role in this.