The answer to 'why is my AC making loud noise' is that there could be several common causes, including a worn-out compressor, loose parts, or issues with the fan motor. Loud noises from your air conditioner are often a sign of a problem that needs to be addressed.
Some of the most common symptoms of a loud AC include grinding, squealing, or rattling noises. These can indicate problems with the compressor, fan motor, or other moving parts. It's important to address these issues promptly, as they can lead to further damage and more expensive repairs if left unchecked.