Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
You will need to replace your water inlet valve on the refrigerator itself, it's part number 26 on this diagram,
this is connected to the water line from the house you can get this at the following link . Hope this helps http://www.searspartsdirect.com/partsdirect/pa rt-number/Samsung-Parts/Refrigerator-Parts/DA97-07827B/0046/401/Model-RF267AEPNXAA/1482/0161000?keySuffixId=NA&productTypeId=x&searchModelNumber=RF267AEPNXAA&subCompDesc=Cabinet&brandDesc=SAMSUNG&modelDesc=REFRIGERATOR&blt=11
hope this helps, thanks Bryan