Repair
You can guess with name itself that PCB repairers/technicians are those who repair the Air Conditioning of houses, offices, schools and so on. You must be thinking that they are only trained for the cooling systems but it is not right as they are trained in field of ventilation as well as heating operators. There can be different kind of PCB repairers who works under either government or for private sectors and they can even be self-employed it totals depends on their respective choices plus the experience. In order to become an AC PCB repairer you need to have a proper AC PCB repairing course where the learner will be trained properly and will gain knowledge.