Health and safety precautions, use of PPE, History of Refrigeration, Identification and use of basic tools and measuring instruments, basics of Science and Physics, basics of Electrical and Electronics and testing of PCB components

Principles and working of Refrigeration system, Compressor, Condenser, Evaporator, Refrigerant Control Device, system support accessories, Lubrication, Refrigerant, preventive maintenance, fault diagnosis and repairing

Study of different models of refrigerator, PCB error codes, internal wiring, Insulation and its properties, rectification of faults and preventive maintenance

Types of Domestic Air condition machines, components, operations, internal wiring, installation, PCB error codes, fault finding and repairing