| 1-Discusses cooling system failures which may consist of internal and external resources.To approach logically to failure diagnosis. 2-Recognizes the reason of mechanical and electrical failures in different models and types of compressors.To explain how these failures can be diagnosed. 3-Defines evaporator and condenser failures. To resolve these failures. 4-Explains the diagnosis of failures in expansion elements, pipelines and other accessories, and troubleshooting methods. 5-Repairs the basic defects in the of the of local climate device type. 6-Lists the failures that could occur in climate control devices, electrical circuit and to resolve the failures. 7-Recognizes the failure cases that may occur in the air and water circuits of central air conditioning systems.To resolve the failure. |