USB-C charging on and off issue

Hey, recently I have been having issues charging… My mac constantly starts then stops charging the noise of the mac connecting is starting to drive me crazy. The apple store recommended I get a replacement top case but I’m not sure why that would help because the USB c slot is located on the motherboard.

More back story apple replaced my logic board after liquid damage then when I got my new motherboard my laptop started to have these problems. this is all still within a month of getting the logic board replaced.. I’d love to know if anyone has any ideas.

Currently using

• Brand new Apple USB C cable
• Apple power brick