Krista O Laguna Niguel , CA August 06, 2018 Appliance: General Electric Refrigerator ESS25LSRBSS Ge Refrigerator Ess25lsrbss: Refrigerator and freezer not cooling no display lights but inside lights working. How to replace Board Asm Main Control. We replaced the main control board located at the back of the refrigerator. The installation video was incredibly helpful and it only took us about 15 minutes to replace. Super easy fix and saved us a ton of money! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes