Senior HVAC Field Service Technician

AAON, Inc.; Tulsa (OK); On-site; USD 52,000 - 76,000; Full time

Job summary

AAON, Inc. is seeking a Field Service Technician II to install, start up, maintain, troubleshoot, and repair HVAC equipment at customer locations. The role emphasizes diagnostics, efficiency, and delivering high-quality customer support in a field environment.

Candidates should have significant HVAC experience and the ability to work independently, travel to customer sites, and coordinate with internal teams while upholding safety standards.

Qualifications

• Requires a high school diploma or GED.
• 4+ years of HVAC service or related field experience; equivalent background accepted.
• EPA Certification and HVAC-related certifications preferred.

Responsibilities

• Install, startup, maintain, troubleshoot, and repair HVAC equipment at customer sites.
• Diagnose mechanical, electrical, refrigeration, and controls issues with minimal supervision.
• Perform preventive maintenance and evaluate system performance to optimize equipment.
• Document repairs, parts used, and test results accurately for customers.
• Communicate findings clearly to customers and internal teams.

Skills

HVAC knowledge

Troubleshooting

Customer service

Reading wiring diagrams

Field maintenance

Education

GED/HS diploma

Associate degree preferred

EPA/HVAC certifications

Tools

Test instruments

Electrical testing equipment

Job description

AAON, Inc. is seeking a Field Service Technician II to install, start up, maintain, troubleshoot, and repair HVAC equipment at customer locations. The role emphasizes diagnostics, efficiency, and delivering high-quality customer support in a field environment.

Candidates should have significant HVAC experience and the ability to work independently, travel to customer sites, and coordinate with internal teams while upholding safety standards.