Refrigeration Service Technician

Job Description Job Description Access (ACSI) is looking for a Service Technician to join our growing Service Operations team. This role is responsible for the technical execution of service work on mission-critical power, cooling, and monitoring systems where equipment reliability and uptime matter . This is a hands-on field position for someone who enjoys troubleshooting, solving problems, working with customers, and continuing to build their technical expertise. You will work across commercial and critical infrastructure environments, with exposure to equipment from manufacturers such as Vertiv/Liebert and other leading manufacturers . Diagnose, troubleshoot, repair, and maintain commercial and mission-critical HVAC, cooling, power, and related equipment. Perform preventive maintenance and identify developing equipment issues before they become failures. Troubleshoot mechanical, electrical, refrigeration, controls, and system-performance issues. Perform equipment startup, functional testing, commissioning, and post-repair verification. Work with equipment such as precision cooling systems, CRAC/CRAH units, chillers, AHUs, DOAS, split systems, VRF, heat pumps, fans, humidification/dehumidification systems, and related controls. Support service work involving critical power and monitoring environments, including UPS-associated infrastructure and facility monitoring systems. Document service work accurately, including equipment condition, findings, parts used, repairs completed, and recommended next steps. Identify worn, failing, or aging components and communicate service, parts, and lifecycle opportunities to the Service Operations team. Communicate directly with customers and facility personnel regarding equipment condition, work performed, and recommendations. Coordinate with Dispatch, Parts, Service Intelligence, and Service Management to ensure service work moves efficiently from diagnosis through completion. Maintain a safe, organized, and professional job site and follow all company, customer, OSHA, electrical, and safety requirements. Commercial or industrial HVAC/service experience. Strong mechanical and electrical troubleshooting ability. Experience diagnosing refrigeration and HVAC systems. Ability to read wiring diagrams, technical manuals, and equipment documentation. Ability to work independently in the field while communicating effectively with the service team. Valid driver’s license and ability to travel to customer sites. Commercial or industrial HVAC experience. Precision cooling or data center experience. Experience with CRAC/CRAH systems, chillers, AHUs, DOAS, VRF, or other commercial systems. Electrical controls, BAS, or building automation experience. Manufacturer-specific technical training. Experience troubleshooting controls, sensors, communication networks, or monitoring systems. You perform safe, quality repairs and verify the equipment is operating correctly before leaving the site. Your service documentation is complete and useful to the next person who works on the equipment. Customers understand what you found, what you did, and what needs to happen next. You recognize problems beyond the immediate repair and communicate them to the team. You continue expanding your technical capability across HVAC, cooling, power, controls, and monitoring. Access (ACSI) supports the infrastructure that businesses and organizations depend on every day. Our work spans Power, HVAC, Monitoring, and Reliability , with a focus on keeping critical systems running. Our technicians have the opportunity to work with complex equipment, receive manufacturer training, expand across multiple technical disciplines, and build a career in critical infrastructure service. Job Type: Full-time Department: Service Operations Field-based customer service throughout Wisconsin and surrounding areas Pay: $54.61 - $63.61 per hour Company truck ~ Dental insurance ~ Health insurance ~ Life insurance ~ Retirement plan ~ Tuition reimbursement ~ Customer Success Ahead of Our Own is a leading engineering rep and service provider for Vertiv/Liebert and other critical systems. We’re proud to be the region’s factory-authorized Vertiv/Liebert service partner, supporting essential infrastructure with integrity and impact. We support facilities that can't afford downtime, from hospitals, schools and data centers to industrial and commercial buildings. Customer Success Ahead of Our Own\r\n2. Creativity and Innovation\r\n4. is a leading engineering rep and service provider for Vertiv/Liebert and other critical systems. We’re proud to be the region’s factory-authorized Vertiv/Liebert service partner, supporting essential infrastructure with integrity and impact. We support facilities that can't afford downtime, from hospitals, schools and data centers to industrial and commercial buildings.