The resistor is an electrical component built with a poorly conductive substance of electricity; consists of a nickel-chromium wire, usually coated with electrical insulation materials such as sand, ceramic and plastic.
Each type of resistor fulfills different functions in the refrigerator:
• eliminate sweating (condensation) that occurs on the outer sides or inside the cabinet;
• avoid the formation of ice in the drainage channels of de-icing water;
• assist in the defrosting by heating the electric resistance.
The operation of the resistor occurs as follows: the wire warms up because of the resistance to the passage of electric current. This thermal effect is used to prevent sweating or facilitate thawing. It is worth remembering here that some models of refrigerators have a timer or an electronic board to control the electric defrost and turns off the resistor when the defrosting process ends.