An AC technician is a professional who specializes in the installation, maintenance, and repair of air conditioning systems. They use a variety of tools to diagnose and repair air conditioning systems, including thermometers, multimeters, gauges, vacuum pumps, leak detectors, and refrigerant recovery machines. AC technicians also use specialized tools to access hard-to-reach areas, such as drills, saws, and wrenches. They may also use specialized software to diagnose and troubleshoot air conditioning systems. AC technicians must have a thorough understanding of how air conditioning systems work and be able to identify and fix problems quickly and accurately. They must also be able to follow safety protocols when working with refrigerants and other hazardous materials. In addition, AC technicians must be able to read and interpret blueprints and schematics. With the right tools and knowledge, AC technicians can help keep air conditioning systems running smoothly and efficiently.