Go outside and open the fridge access panel in the outer wall. You will be able to see the small black box that is the recall control module. It has a red indicator light. If the red light is ON, that is the reason you have no power - the module has shut the power off. Unfortunately, some versions of those recall boxes are known to give false alarms and your situation sounds like it may be one. You can bypass it, but if it was NOT a false alarm it could result in a cooling unit failure and possibly even a fire. You have to decide on that risk by yourself.
There is another trick which involves a forced reset of the recall box. Get a strong magnet and hold it against the front upper edge of the box for 15-30 seconds. This usually pulls the open relay back into its closed position and restores power. The advantage of this trick is that the module remains active and will cut out again if there really is an overheat condition. If the box cuts out multiple times, leave the fridge off and get professional help to diagnose why it is overheating.