[Creeker]

First make sure the refrig is very near level.

Are your refrig fans kicking on?

If level, Take the lower refrig vent cover off outside.
Place whatever fan you have as close as you can get to the open vent.
Small step ladder, 5 gallon buckets, stack of boards, firewood ect....
Use what you have to get the fan within a foot or so to the open vent.

Situate the fan where it is blowing up the back of the refrig as good as you can. Not straight in toward the Refrig, it must be angled up. Air has to absolutely, positively flow through the fins on the top (outside) of your refrig. This is a temporary fix but will work if ventilation is your problem.

One of the biggest problems with these refrigerators installed in a slide is improper ventilation. Many are simply not installed correctly with the proper clearances and baffles used to route the air through those upper outside fins and to keep hot air from being trapped on the sides and top of the refrig. Its hard to make air rise straight up through those fins and then turn to go out the upper vent on the side of your slide out.

RV Refrigerators not installed in slides almost always perform much, much better. This is due to the roof vent straight above the back of the refrig allowing a chimney effect of pulling in air through the bottom vent straight up through the fins and straight on out the roof vent. It works so well that fans are rarely even needed.