An AC Technician installs, repairs, and maintains air conditioning systems in homes, offices, and industries. Main Duties:Install new AC units (split AC, window AC, central AC)Diagnose problems and fix faults in AC systemsPerform regular maintenance and servicingCheck gas/refrigerant levels and refill if neededRepair electrical and mechanical partsClean filters, coils, and ductsReplace damaged partsEnsure safety and proper functioning Technicians mainly handle technical work and troubleshooting.