Hi,
What is the model number of the refrigerator?
Shorting out pins if the power is still connected to the refrigerator or connecting the power with the pins still shorted is definitely not good.
The first thing to check would be the control board for any obvious signs of damage, e.g. burnt out components etc.
If you can't spot anything or you're not quite sure post some close up images of the control board back here.
Here's how to do this. [guide|21499]