Why my air conditioner is making a rattling noise
It's usually right when you're about to fall asleep or finally sitting down to watch a movie that you notice it: my air conditioner is making a rattling noise that sounds like a handful of gravel stuck in a blender. It's annoying, sure, but it's also a little bit worrying. Does this mean the whole system is about to give up the ghost? Is it going to cost a small fortune to fix? Or is it just a loose screw that needs a quick turn? ...