Tools, methods and systems for detecting and reporting the presence of an obstruction to an AC system of the present disclosure are able to detect the presence of the obstruction using one or more sensors connected to the air conditioning unit and displaying an alert on the computer system of the AC system when the sensors detect the presence of the obstruction. By displaying an alert at the computer system's output device, the presence of the obstruction is brought to the user's attention, allowing the user to take remedial action as needed before initiating the air conditioning system into operation, preventing the obstruction from harming the components of AC system if the system was initiated while the obstruction was still present. Additionally, the AC system may further disable or prevent the operation and initiation of itself when the sensors of the air conditioning system detect the presence of an obstruction.