• Notes: Technician Helper – Duties & Responsibilities; the AC Technician in installing, repairing, and maintaining air conditioning systems; tools, materials, and equipment required for AC servicing and installation; clean AC units, filters, coils, and other components; in checking electrical connections and refrigerant lines; and unload AC units and spare parts at the work site; cleanliness of the work area and follow safety procedures; in basic troubleshooting and report issues to the technician; Skills; knowledge of air conditioning systems; to use hand tools; fit for lifting equipment; and communication skills; to learn technical work