Is there more than 2 lighted shelves installed inside the Refrigerator?
No more than two shelves with under-shelf lighting may be used in the refrigerator at one time. Using more than the approved / recommended amount could cause the shelves not to function properly.
Have the doors been open for longer than 10 minutes?
Try closing the doors and drawers to reset the Refrigerator. Open the Refrigerator to resume lighted tasks.