I have seen three types of internal refrigerator fans. I was wondering if any of these either cool down the refrigerator faster or assist in maintaining a more uniform or cooler temperature. I have a 6cf refrigerator (separate freezer).
I've had similar to your (1) for years. One set of D cell batteries lasts a season. IF the refrigerator starts struggling, I place a frozen water bottle right next to the fan and it helps disperse the cold. It also helps during the initial cool down.
2014 Escape 5.0TA