Raymond W Groton , NY September 01, 2015 Appliance: Samsung Refrigerator RB215LABP/XAA-0000 Samsung Refrigerator Rb215labp/Xaa-0000 / : Freezer and fridge would not freeze and cool. How to replace Refrigerator Main Control Board Assembly. Replaced main control board 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes