Posted August 27, 2026
HVAC-R Service Tech
CoolSys
Ballwin, Missouri 63021, United States
Full-Time
71500.00 - 98500.00
Reference: 3162389825
CoolSys, a leader in sustainable, energy-efficient HVACR solutions, is seeking an HVAC/R Service Technician to join our HVAC Wholesale team. In this role, you will install, troubleshoot, repair, and maintain commercial and industrial HVAC/R systems, ensuring optimal performance and energy savings for clients across North America. You will diagnose system issues, perform preventive maintenance, and provide exceptional customer service on-site. At CoolSys, you'll work with innovative technology in a collaborative, inclusive culture that supports your growth, values diversity, and promotes safety, performance excellence, and work-life balance.
Responsibilities
- Perform advanced troubleshooting, diagnosis, and repair of complex commercial and industrial HVAC/R systems, ensuring optimal system performance and reliability.
- Conduct routine and preventive maintenance on HVAC/R equipment, documenting work performed and identifying opportunities to improve efficiency and system life.
- Install, start up, and commission HVAC/R components and systems in accordance with Cool
- Sys standards, manufacturer specifications, and local codes.
- Monitor and optimize system performance for energy efficiency, recommending upgrades, retrofits, or adjustments that reduce energy consumption and operating costs for clients.
- Respond to service calls in a timely, professional manner, clearly communicating findings, recommendations, and repair options to customers and internal stakeholders.
- Utilize digital tools, diagnostic equipment, and mobile technology to complete work orders, record service data, track parts usage, and maintain accurate service records.
- Ensure all work is completed in compliance with safety regulations, environmental guidelines, and company policies, including proper refrigerant handling and recovery.
- Collaborate with team members, dispatch, and project managers in the Technical & Maintenance department to coordinate work, share technical knowledge, and support project success.
- Mentor junior technicians by sharing best practices, troubleshooting techniques, and safety procedures to support their growth and maintain high service standards.
- Represent Cool
- Sys on customer sites as a professional, dependable partner, upholding company values, promoting long-term client relationships, and identifying additional service opportunities.
Required Skills
- Commercial HVAC/R troubleshooting
- Refrigeration systems diagnostics and repair
- Reading and interpreting schematics and wiring diagrams
- Preventive and predictive maintenance
- Refrigerant handling and recovery
- Brazing, soldering, and piping for HVAC/RUse of digital gauges, meters, and diagnostic tools
- Building automation and control systems basics
- Energy efficiency optimization and commissioning
- Customer service and client communication
- Work order and service ticket documentation
- Time management and route planning
- Safety procedures and OSHA compliance
- Use of mobile/field service technology
