The technician must be knowledgeable in electrical theory to be able to diagnose and repair major appliances and air conditioners properly. Although this chapter cannot cover all there is to know about electricity, it provides the basics. In the field of major appliances and air conditioners, the greatest number of potential problems is in the electrical portions of the product.
The flow of electricity from a power source to the home can be made easier to understand by comparing it to a road map. Electricity flows from a power source to a load. This is similar to a major highway that runs from one location to another.
High-voltage transformers are used to increase voltages for transmission over long distances. ...