Automotive air-conditioning technicians install and repair air-conditioners and parts, such as compressors, condensers, and controls. These workers must be trained and certified in handling refrigerants. Installing, maintaining and repairing ventilation and air conditioning systems and equipment. Identifying maintenance risks on equipment. Diagnosing electrical and mechanical faults for HVAC systems. Performs work as outlined on repair order with efficiency and accuracy, in accordance with dealership and factory standards. Diagnoses cause of any malfunction and performs repair. Communicates with parts department to obtain needed parts.