Samsung RS2630SH Refrigerator

If the motor still works, try just buying the fan blade. $2.95

I have had the same refridge since june 07'. I noticed summer of 08' the fan started "buzzing/whining".
When you remove the rear back panel of the fridge, you can remove the power cord at the clip above, then slide the fan towards you and take it out to clean and re-lubricate it. DO NOT USE WD-40! This will just gunk up the already binding motor. WD-40 should only be used where it can be wiped away, it is a cleaner not a lubricant. Use a few drops of 3-in-1 oil and hope it lasts. This is a temporary solution, Samsung went pretty cheap on this component. Good Luck.

You have the fan problem. Full the refrigerator out and open the lower back cover you will see you fan is almost become bad. If you apply WD1040 oil you can use it about 3 more months. Then It will die out. I think you better change it now or later on you refrigerator become hot and hotter. If you are careless, you can get burn you skin. I had this problem. Frist, the fan made noise on and off. I applied oil into the motor. It was working about 3 months then I died out. The front end of refrigerator become a heater.
Go to online partstore.com and buy a fan with your fan model.