li>Diagnose, troubleshoot, repair, and maintain HVAC and rooftop equipment including air conditioning systems, heating systems, condensers, evaporator coils, fan motors, blower assemblies, controls, thermostats, refrigerant circuits, electrical components, and associated mechanical systems to support restaurant operations . Diagnose, troubleshoot, repair, and maintain commercial refrigeration systems and equipment including walk-in coolers, freezers, reach-in coolers, prep tables, ice machines, compressors, condensers, evaporators, controls, refrigerant circuits, and associated components .