Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
Do you hear any fans or anything running inside or in the back? Or is it completely silent?
Because the freezer is not cold fans will not run, there is a thermostat that when the coils get cold turns the fan on to circulate air into the fresh food section, this is normally the case if you replace the relay and the fans do not come on after the coils or cold then you have a bad board also,and I'm sorry I was an era on the relay itself, it was $8.15 at the first side I sent you to but they do not have it in stock, Sears does but it's $29.99, big difference sorry here's the link to that http://www.searspartsdirect.com/partsdirect/part-number/Samsung-Parts/Refrigerator-Parts/DA35-10013Q/0046/401/Model-RS2555SLXAA/1482/0165000?keySuffixId=&productTypeId=&searchModelNumber=RS2555SL/XAA&blt=06&subCompDesc=MACHINE COMPARTMENT & CABINET BACK
you will have to copy and paste that one unfortunately, I would replace the relay and see if the fans come on once it gets cold enough, thanks and well wishes, Bryan