HVAC/R Service Tech

CoolSys is seeking an experienced HVAC/R Service Tech 4 to provide advanced service, diagnostics, and repairs for commercial, industrial, and mission-critical customers. In this field role, you'll troubleshoot complex refrigeration and HVAC systems, perform preventive maintenance, start-ups, and emergency repairs, and ensure safe, efficient operation. You'll interpret schematics, document work, and interact directly with customers. CoolSys offers technical training, advancement opportunities, and a safety-first, collaborative culture focused on reliability and energy efficiency.

Responsibilities

• Perform advanced diagnostics, troubleshooting, and repair of commercial and industrial HVAC/R systems
• Execute preventive and predictive maintenance to ensure safe and efficient system operation
• Respond to emergency service calls and complete start-ups, retrofits, and component replacements
• Interpret and work from technical manuals, blueprints, and wiring diagrams
• Handle refrigerants safely in compliance with EPA and company standards
• Document all work performed, parts used, and recommendations in service reports
• Coordinate with dispatch, project managers, and team members to meet customer schedules
• Communicate clearly with customers on findings, options, and system performance
• Follow all Cool
• Sys and OSHA safety policies, procedures, and best practices
• Support mentoring of junior technicians and contribute to a collaborative, learning-focused culture

Required Skills

• Commercial HVAC/R diagnostics
• Refrigeration systems repair
• Electrical and mechanical troubleshooting
• Brazing and piping
• Reading blueprints and schematics
• Preventive and predictive maintenance
• Use of HVAC/R diagnostic tools and gauges
• Controls and thermostat setup
• Refrigerant handling and recovery
• Technical documentation and service reporting