电冰箱不制冷或制冷不够有以下原因: (1)散热器板表面积有污物,影响热交换,特别是冰箱放在厨房内,更易存积油垢,影响散热。办法是:清扫散热器表面的污物。 (2)蒸发器表面结霜太厚,使导热系数变小,冰箱内食物中的热量难以通过霜层传递到蒸发器上,从而 Refrigerator is not cooling or cooling is not enough for the following reasons: (1) radiator plate surface area of ​​dirt, affecting heat exchange, especially in the kitchen refrigerator, more likely to accumulate grease, affecting heat dissipation. The solution is: to clean the surface of the radiator dirt. (2) the evaporator surface frosting is too thick, so that the thermal conductivity becomes smaller, the heat in the refrigerator food is difficult to pass through the frost layer to the evaporator, thus