Steven H Yorba Linda , CA March 29, 2015 Appliance: Electrolux Refrigerator EI26SS55GB0 Electrolux power failure warning light/beep kept coming on Replaced the Main Control Board and the Companion Board (part of the display panel). Note #1: Kit comes with 3 short and 2 long wire harnesses. The 3 harnesses bundled together with masking tape plugged into the main control board and then into the main wire harnesses from the refrigerator. Only one of the 2 longer wire harnesses supplied in the kit used the same color coded wires as the original wire harness from the refrigerator so that's the harness I used. Note #2: If you work with it, all the new connectors do fit into the gray plastic box. Note #3: Replacement of the main control board under the refrigerator is much easier if you lean the refrigerator backwards and put blocks of wood under the two front adjusters Read More... 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Adjustable Wrench, Nut Drivers, Pliers, Screwdrivers, Socket Set