Hello Sassy,I am surprised nobody gave any suggestions.From the picture,I see there is a piercing valve on the left of the compressor.That valve is used to charge up the refrigerant or to check the pressure in the sealed systrem.Usually that means there is a refrigerant leak in your fridge.When there is too much refrigerant in the system,the suction line will have frost.The repairman was thinking of putting more refrigerant in to make the fridge work longer before needing another charge.The starting noise may mean not enough lubrication oil in the compressor.For now,just observe how long your fridge will work properly.To fix the leak or putting more oil in can be expensive.
