Commercial HVAC Service Technician

About the role

We are seeking an experienced and dependable Commercial HVAC Service Technician to join Nash Plumbing and Mechanical, LLC, a subsidiary of HB Global. The role involves troubleshooting, servicing, repairing, and maintaining a variety of commercial HVAC and mechanical systems in occupied facilities.

Key responsibilities

• Troubleshoot, diagnose, service, and repair commercial HVAC and mechanical equipment.
• Perform preventative maintenance and equipment inspections.
• Diagnose mechanical, electrical, and refrigeration issues, including pumps, VFDs, boilers, and split‑system units.
• Conduct refrigerant system troubleshooting (pressures, temperatures, superheat, subcooling).
• Read and interpret wiring diagrams, schematics, and manufacturer documentation.
• Communicate findings clearly with customers, project managers, and facility personnel.
• Follow all company and jobsite safety procedures.

Required profile

• 2–3 years of commercial HVAC experience (preferred).
• EPA Section 608 Certification.
• Strong mechanical and electrical troubleshooting abilities.
• Valid driver’s license with an acceptable driving record.
• Ability to work independently and prioritize tasks.

Required skills

• EPA Section 608 Certification
• Commercial HVAC and refrigeration systems
• Pump, VFD, boiler, and hydronic system troubleshooting
• Split‑system and mini‑split HVAC repair
• Refrigerant diagnostics (pressure, temperature, superheat, subcooling)
• Electrical component troubleshooting (motors, contactors, relays, capacitors, transformers, sensors, control circuits)
• Reading wiring diagrams and equipment schematics
• Use of HVAC diagnostic tools (multimeter, gauges, temperature probes)
• Valid driver’s license