Mike W Brookhaven , GA September 16, 2016 Appliance: Frigidaire Refrigerator PHSC39EGSS1 Frigidaire Refrigerator Phsc39egss1: Refrigerator and freezer didn't cool half the lights were out but other lights worked. How to replace Pcb Main Power Control Board Assembly. After talking to someone on the chat service, I ordered a Main Power Board from AppliancePartsPros.com. It took a little research online to figure out where the part was located and how to change it, but it then literally took 10 minutes to swap the part. For less than $200, I saved myself from buying a new Refrigerator which would have probably cost me close to $2000! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes