First, Christi's idea is excellent.
If you can't do that, here's some thoughts. Your refrigerator
is an ammonia-absorption refrigerator
. How it works is magic, but basically a heat source (either a gas flame or electric heating element) heats the ammonia cocktail in a boiler where it squirts out through an orific into tubes, and where it cools somehow taking the heat out of the box. Makes no sense to me, but...
Anyway... the key is whether or not the fridge
works on gas. If it works on gas, but not electric, then your fridge
is fine, it's just a problem with the electric; either the switch, wiring, or heating element. If it doesn't cool on gas either, then you have a real problem, and there are some tricks you can try, but more likely than not, the fridge
is dead and needs to be replaced.
Try running it on gas for 6 to 8 hours and tell us what you find out.