Industrial Combustion Service Technician

Location: Middle Tennessee (Base) | Regional & National Travel

Employment Type: Full-Time

Travel: Frequent Mon–Fri overnight travel (overtime common; weekend work is rare)

About the Role A top-tier equipment manufacturer is seeking an experienced Heavy Commercial HVAC & Combustion Service Technician to handle startup, troubleshooting, maintenance, and repair of large-scale commercial and industrial heating and cooling systems across the U.S.

This is not a residential or light-commercial role. You will work on heavy industrial equipment—including chillers, heat pumps, hydronic systems, and multi-fuel burners—installed in factories, concrete plants, and commercial facilities.

Key Responsibilities

• HVAC & Refrigeration: Diagnose and service industrial chillers, heat pumps, and hydronics. Troubleshoot complex refrigeration circuits, scroll compressors, valves, and heat exchangers.

• Combustion Systems: Service and tune gas, propane, and fuel-oil burners using combustion analyzers. Troubleshoot gas trains, safety shutoffs, and flame safeguards.

• Electrical & Controls: Read schematics and diagnose 208–575V three-phase systems, VFDs, motors, sensors, and controllers.

• Startup & Commissioning: Conduct factory-authorized startups, verify installation requirements, test system safeties, and train facility operators.

• Documentation: Complete accurate electronic service reports and photos. Assist with factory testing and technical projects when not traveling.

Qualifications

• Hands-on experience with heavy commercial HVAC, industrial refrigeration, burners, or boilers. (strong HVAC techs with basic combustion exposure—or industrial combustion techs with strong electrical skills—are encouraged to apply).

• Solid skills in three-phase electrical troubleshooting and reading schematics.

• EPA Section 608 Universal Certification preferred.

• Valid driver’s license with an acceptable driving record.

• Willingness to travel Mon–Fri frequently and work overtime while on the road.

• Physical ability to lift up to 50 lbs, climb ladders, and work in varied site conditions.

salary: $52,000 - $66,560 per year
shift: First
work hours: 7 AM - 4 PM
education: High School

Responsibilities

Experienced Heavy Commercial HVAC and Combustion Service Technician to perform startup, commissioning, troubleshooting, maintenance, and repair of large commercial and industrial heating and cooling equipment.

This is a traveling field-service position supporting equipment installed at customer facilities throughout the United States. Field assignments frequently require technicians to leave on Monday and return on Friday. Overtime and extended workdays are common while traveling. Remaining out of town over the weekend is limited, although occasional weekend work or travel may be required based on customer or service needs.

• Diagnose and repair commercial and industrial chillers, heat pumps, hydronic systems, and process-temperature equipment.
• Troubleshoot refrigeration circuits containing compressors, expansion valves, solenoid valves, pressure controls, heat exchangers, receivers, accumulators, and related components.
• Evaluate refrigeration-system performance using pressures, temperatures, superheat, subcooling, compressor amperage, water temperatures, temperature differential, and flow information.
• Diagnose hydronic-system problems involving pumps, valves, strainers, piping, heat exchangers, flow-proving devices, and water-temperature controls.
• Perform leak detection, refrigerant recovery, evacuation, charging, component replacement, and system-performance verification.
• Perform preventative maintenance, equipment inspections, component replacement, and field repairs.

The essential functions of this role include:

• wearing steel toe shoes
• manual lifting up to 55lbs
• working weekends

Skills

• Electronic Maintenance
• Mechanical Maintenance
• Inspecting
• Blueprint Reading
• Telephone Etiquette

Qualifications

• Years of experience: 3 years
• Experience level: Experienced

Randstad is a world leader in matching great people with great companies. Our experienced agents will listen carefully to your employment needs and then work diligently to match your skills and qualifications to the right job and company. Whether you're looking for temporary, temporary-to-permanent or permanent opportunities, no one works harder for you than Randstad.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact View email address on us.fitly.work.

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.