I received the fridge used and in good working condition. It was in use 2 weeks with no problems. Throughly cleaned before returning to service. I unpluged the unit without using the controls to shut the fridge down first. I removed an object that had fallen behind it, plugged the fridge back in and left. The next morning I found the fridge with the interior lites working, waffles in freezer soft, and both the temp setting displays reading dashes. I read the operator manual and tried to reset the temp. setting without any response or display change. I unplugged the fridge allowing it to sit 20 minutes then plugged in again no change. I hear no response or sounds from the fridge. Any suggestion?