So how does a typical air conditioning unit work and keep you sane during the heat of summer? The basic concept is that a chemical called a refrigerant loops from inside the home to outside and ...

So, how does air conditioning work? Good Question. "As I explain to my students, we're in the transportation business," says Jimmy Manteuffel, an HVAC instructor at the Dunwoody College of Technology.

Since that might not fix the problem, even temporarily, and even if it does, it won’t be a permanent fix. So let’s go over some basics about how air conditioning works, what might go wrong ...