Installation: Mount new AC units, connect pipes, run electrical wiring, and test systems during start-up.
Maintenance: Clean air filters, wash coils, clear drain lines, and check refrigerant levels to prevent breakdowns.
Diagnostics & Repair: Use multimeters and manifold gauges to find electrical or mechanical faults, then replace bad parts like compressors, fans, or capacitors.
Compliance & Safety: Follow local building codes, use personal protective equipment (PPE), and handle refrigerants safely according to environmental rules.
Customer Service: Explain problems to clients, provide repair estimates, and write up service reports.