Product review (5 stars): Proactive Prime Purchase saves the day! (Okay, it saved the food)
Our refrigerator stopped cooling, but freezer was fine. Googled symptoms, researched suggestions, and Prime-ordered most likely parts. Repairman came today, ascertained it was the control board, and then laughed when I handed him the box that had arrived minutes before he did. Conveniently avoided delays and a second trip. Fridge back in good working order!