• Install, service, and repair various air conditioning systems and components. • Inspect units to diagnose mechanical and electrical issues. • Perform routine preventive maintenance and cleaning. • Replace worn or faulty parts. • Provide repair cost estimates. • Adhere to safety standards and industry regulations. • Maintain logs and records of service and repairs. • Communicate with clients to explain repairs and maintenance needs. • May involve programming and maintaining building automation systems for HVAC efficiency.