Alan W Des Moines , IA May 23, 2017 Lights on but no temp display and no refrigeration. Entered make/model, looked at most common faults. Seen several accounts of the same problem, lights on but no display or cooling, indicating main control board failure. Replaced main control board. Fridge is working perfectly now. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes