Christopher V La Center , WA August 14, 2015 Appliance: Jenn-Air Side By Side Refrigerator JS48CSFXDA Jenn-Air Refrigerator Js48csfxda: Power supply board failed. How to replace Refrigerator Power Supply Control Board. Replaced Power Supply Board. Trouble shot board by using volt meter. Verified incoming 120V AC and no output supply voltage to the display control board. Purchased part from ApplianceParts Pros with Second Day Air and part arrived one day early!!! Thanks for the quick turn. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes