Technicians and AC repairs, as the title suggests, are the people who are responsible for the maintenance of air conditioning systems at institutes, workplaces, homes, and various other structures. It is possible to believe that they are only trained to work on cooling systems, however, it's not true as they also train as heating and ventilation operators. Many AC repairers are employed by the public or private sector. They may even work for themselves, according to their interests and their experience. To be an AC repairer, one needs to first pass the AC Repairing course that will ensure that the person who is learning is properly instructed and will gain experience.