Shawn G Philadelphia , PA November 07, 2015 Appliance: Samsung Refrigerator RB215LASH/XAA-0000 Samsung Refrigerator Rb215lash/Xaa-0000 / : Relay on main control board stopped functioning compressor would not switch on or off. How to replace Refrigerator Main Control Board Assembly. Purchased new control board from Appliance parts pros. Next day delivery no additional cost. I replaced the entire control board in 30 minutes. Repair man was asking $500.00 for the job. Total cost of Diy, $94.00! Thank Appliance parts pros! 20 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes