Dometic and Norcold RV refrigerators have a common problem that when the refrigerator runs for an extended length of time, ice can accumulate on the cooling fins, greatly reducing the cooling efficiency of the fridge. Watch Video: Do Fans Make Noise? Dometic Americana Eventually, the ice chokes off the what little airflow exists, and the refrigerator must be defrosted, which can be a cumbersome and annoying process. Once the Fridge-Fix is installed, the ice that has accumulated on your cooling fins will immediately begin to melt. With the Fridge-Fix installed, you will never have to defrost your refrigerator again. …ever.