As an HVAC technician with years of experience, I have encountered numerous air conditioner failures. While there are various components that can malfunction, there are two main culprits that stand out: the compressor and the fan motor. These two parts work together to keep your air conditioner functioning properly, but when they fail, it can cause a lot of frustration and discomfort. In this article, I will discuss the most common causes of air conditioner failure and provide tips on how to prevent them.