This product can keep you from being afraid and going back to an ice chest ...
arp refrigeration control: www.arprv.com
The install has to be done correctly for it to work, it is within the capabilities of an advanced do it your selfer or have it installed otherwise.
Fridge makers could license his patent and build this right into gas absorbtion fridges.
It shuts off the heat source for a short time when temps pass the safe upper limit of what is normal, before excess heat leading to excess pressure leading to failure can occur. It allows the heat source back on after excess heat is gone, so food does not spoil like the recall boxes do ( they shut off at much higher temps and stay off once shut off ) This generally happens due to out of level operation but can also happen if the refrigerator control board fails or the internal temp sensor in the fridge fails.