ceiling leak from ac 23

https://wiki-wire.win/index.php/Roof_Leak_vs_Condensation:_How_to_Tell_the_Difference_on_Your_Ceiling

Water dripping from the ceiling near the AC vent, leaving a damp patch on the drywall. The steady plink-plink is getting louder, and the paint is starting to bubble. Need to get the AC unit serviced before the ceiling stains spread or worse, the whole thing gives way.