[counched out too]

I have a 02 43 open. My refrigerator (Norcorld) quit working. I placed it with the same model. it work good for about 2 days. Quit working. Took it out took back to Wet Marine and they ordered me a new one. They same thing has happen now for three new refrigerators. All replaced by West. What is happening I believe the compressor  are thermal out. I have tried to get the heat out from behind the cabinet by opening doors. Has anyone else experienced this problem. I am getting  tired of removing them.I have to believe it is a heat problem. the first refrigerator was 16 yrs old. I would appreciate any ideas on how to remove this heat.