[DPeakMD]

I went to a lecture given by Dometic. They told us the absolute limit of cooling is a physical limitation imposed by the height of the coils on the back of the unit. It runs so many degrees per foot. I remember that he said something like 45F degrees lower than ambient for a full size Airstream fridge. He pointed out that the temperature in space behind the fridge is a crucial factor then, so park with that side out of the afternoon sun, pull down an awning to shade it, etc.

He said that a cooling fan blowing across the outside fins does not add anything. It's the natural convective process that occurs with it's chimney effect that's important. I used a fan outside at that time, and I agree, it seemed to add little. What helped me was realigning my fridge door and making sure the gasket sealed well on the lower compartment. I was loosing cold.