Thomas R Leesburg , VA November 03, 2018 Appliance: General Electric Refrigerator ZISS420DXASS Ge Refrigerator Ziss420dxass: Both led lights in GE monogram side by side refrigerator were out. How to replace Ice Door Assembly. Since both lights were out, I figured it was not the bulbs. The next thing was the fuse. It was not blown. That left the transformer - which I changed. That fixed the lights. The transformer is in a difficult place under the front of the frig in a metal enclosure but once you get the screws out and disconnect the wires, you can get to the transformer. AppliancePartsPros.com sent the correct part quickly. The customer comments in APP reviews did help me as GE support is difficult to find online. 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours