Diagnose and troubleshoot complex air conditioning systems to ensure optimal performance and efficiency.Installation, servicing, maintenance, and repair of split, window, package, and ducted AC unitsBasic refrigerant gas filling, pressure checking, leak detection, and servicing of chillers Troubleshooting AC and chiller system issues and carrying out preventive maintenance Basic electrical works (switches, sockets, lights, minor wiring) Basic plumbing works (leak fixing, fittings, drainage issues) Gypsum, carpentry, and minor civil repair works as required Responding to breakdown complaints and ensuring timely resolution Maintaining tools, equipment, and safety standards