Reviews design, manufacturing, and testing documentation. Coordinates and performs inspections of raw materials and finished products, applying appropriate quality assurance testing models. Identifies the root cause of quality problems, and coordinates modifications or other corrective actions. Installing, maintaining, repairing and replacing air conditioners and refrigeration equipment. Testing various types of units and electrical circuits to ensure they are fit for installation. Answering customer calls and troubleshooting common system problems. Inspects, operates, adjusts, calibrates, and repairs water filtration equipment, water well pumps, water storage tanks, water/sewage pumping stations, wastewater pumps, valves, air compressors, meters, equipment control panels, programmable controllers, emergency generators, wastewater facility equipment.