A leaking AC is never something to ignore. Whether it’s a clogged drain line, a dirty air filter, or something more serious like a refrigerant leak, the cause matters. Here’s what to look for and how to decide if it’s a DIY fix or time to call a pro.

That bang, squeal, or hiss coming from your AC is not something to brush off. Strange noises are your system’s way of flagging a problem before it gets worse. Here’s what each sound means and when it’s time to call a pro.

Something smells off and your AC might be the culprit. A musty odor could mean mold is growing somewhere in your system, while a burning smell might signal an electrical issue that needs quick attention. Here is what different AC odors are trying to tell you.