HVAC Service Technician

Parker-Arntz Plumbing & Heating; Detroit (MI); On-site; USD 70,000 - 90,000; Full time

Job summary

Parker-Arntz Plumbing and Heating in Detroit is seeking a Commercial HVAC Service Technician with 7+ years of commercial service experience to join our growing team. This role focuses on diagnosing and repairing complex HVAC systems for commercial clients, with opportunities for career growth in a fast‑moving organization.

You will perform troubleshooting on RTUs, VRF/VRV, boilers, air handling units, and related controls, install and commission BAS components, balance air flows, and communicate

Qualifications

• 7+ years of commercial HVAC service experience.
• EPA 608 Certification (Type II or Universal).
• Ability to read and interpret mechanical drawings and control diagrams.
• Strong troubleshooting skills and ability to work independently.
• Current driver’s license and insurable to drive to job sites.

Responsibilities

• Perform troubleshooting, repair, and maintenance on commercial HVAC equipment such as RTUs, split systems, VRF/VRV, heat pumps, boilers, air handlers, VAVs, exhausts, and energy recovery units.
• Install, repair, and commission control wiring, sensors, actuators, relays, and low-voltage circuits; interface with BAS and verify operation.
• Conduct airflow testing and balancing; verify VAV boxes, static pressure controls, economizers, and ventilation systems.
• Communicate technical findings to facility managers, contractors, and building owners; prepare service reports and recommendations.

Skills

HVAC troubleshooting

Commercial HVAC service

Control wiring

Reading schematics

EPA 608 Certification

Education

Associates degree or technical schooling in HVAC/controls/electronics

Tools

Manometers

Flow hoods

Anemometers

Multimeter

Job description

Parker-Arntz Plumbing and Heating is adding a Commercial HVAC Service Technician to our growing team! Qualified candidates will have no less than 7 years of commercial service experience. If you are looking to join a fast-growing, dynamic organization that offers career growth potential.

Key Responsibilities

Service, Diagnostics & Repair

• Perform troubleshooting, repair, and maintenance on commercial HVAC equipment including RTUs, split systems, VRF/VRV systems, heat pumps, boilers, air handlers, VAV systems, exhaust systems, and energy recovery units.
• Conduct advanced diagnostics on electrical, refrigeration, and mechanical components.
• Interpret wiring diagrams, schematics, ladder logic, and sequence-of-operation documentation.
• Ensure all work meets local codes, safety regulations, and manufacturer specifications.

Control Wiring & Building Automation

• Install, repair, and commission control wiring, sensors, actuators, relays, and low-voltage circuits.
• Interface with Building Automation Systems (BAS), including troubleshooting communication issues and verifying proper sequence of operations.
• Identify control failures, incorrect wiring, or programming issues affecting system performance.
• Provide recommendations for controls upgrades, retrofits, and energy-efficiency improvements.

Air Balance & System Optimization

• Conduct airflow testing, adjustments, and balancing for commercial HVAC systems.
• Verify proper operation of VAV boxes, static pressure controls, economizers, and ventilation systems.
• Utilize airflow measurement tools (manometers, flow hoods, anemometers) to achieve design specifications.
• Document air balance findings and recommend system improvements for comfort, efficiency, and code compliance.

Customer Interaction

• Communicate technical findings clearly to facility managers, contractors, and building owners.
• Prepare accurate service reports, recommendations, and follow-up actions.
• Represent the company with professionalism, reliability, and a customer-first approach.

Qualifications

• 7+ years of commercial HVAC service experience.
• Strong expertise in control wiring, low-voltage circuits, and control logic.
• Demonstrated proficiency in commercial air balancing.
• Ability to read and interpret mechanical drawings, control diagrams, and airflow specifications.
• EPA 608 Certification (Type II or Universal).
• Excellent troubleshooting skills and ability to work independently.
• Ability to interface with clients and effectively communicate service/project outcomes and recommendations.
• Applicants must have a current driver's license and a satisfactory driving record, must be insurable to drive to and from assigned jobs.

Preferred:

• Experience with common BAS platforms (e.g., Trane, Johnson Controls, Siemens, Honeywell, Carrier).
• OSHA 10/30 safety certification.
• Associates degree or technical schooling in HVAC, controls, electronics, or a related field.

Requirements

• Strong knowledge of HVAC systems, including understanding of electrical wiring, refrigerant handling, and airflow principles
• Proficient in using tools and equipment commonly used in HVAC installations and repairs
• Ability to read and interpret blueprints, schematics, and technical manuals
• Excellent problem-solving skills to diagnose issues and implement effective solutionsStrong attention to detail to ensure accurate installation and repair work
• Effective communication skills to interact with clients, team members, and supervisors