MORSNOW wrote:
In the hot summer months, it takes much longer to get cold, especially if empty. I normally start the refrigerator at least three days in advance so it can cool down. I also add some nonperishable already chilled/frozen things to help get it cool quicker. Remember a refrigerator/freezer removes the heat, it doesn't add cold, so you are fighting the outside ambient heat. Shade the side of your camper or add a temporary fan to help the coils remove the heat.
Or it may not cool due to both inside and outside temps, what are they?
Also run the A/C to cool the inside.