HVAC Mechanic III performs maintenance and service repairs on heating, ventilating, and air conditioning systems. Installs new units or replacement parts for existing units according to specifications and established safety guidelines. Being an HVAC Mechanic III follows blueprints or engineering specifications to install units. Performs troubleshooting to identify the cause of problems. Additionally, HVAC Mechanic III maintains and secures a spare parts inventory. Recommends purchasing maintenance equipment and supplies as required to improve processes and efficiencies. Typically requires an apprenticeship and/or completion of technical training. Requires a high school diploma. The regulations governing the location may require an HVAC Mechanical State License and EPA Section 608 Certification (CFC). Typically reports to a supervisor or manager. The HVAC Mechanic III works independently within established procedures associated with the specific job function. Has gained proficiency in multiple competencies relevant to the job. To be an HVAC Mechanic III typically requires 3-5 years of related experience.