It’s important to remember that your air conditioner is more than just a box sitting outside. Your AC system, and by extension, your HVAC, is a highly complex machine filled with moving parts, home-wide infrastructure, and sophisticated cooling technology. There’s a lot that can go wrong, and unfortunately, the problem is usually too complex for good ol’ fashioned DIY solutions. In other words, it’s usually not enough to watch a Youtube video, get your tools, and fix the problem yourself. Here are some common issues with air conditioners — ones that we have the tools, training, and experience to fix.