What is a refrigerator condenser coil?

A condenser coil is a device designed to efficiently release the heat from the refrigerator. Liquid coolant is circulated through the coil by the compressor. As the coolant passes through the coil, heat is dissipated and the liquid is cooled. If the coil is covered with dirt and dust, the compressor will work harder and longer than it is supposed to, causing the compressor to use more energy than necessary. All of this extra work can result in premature breakdowns and costly repairs.