James S Clinton Township , MI October 10, 2015 Appliance: Model PSH25NGSC BV Ge side by side would never reach desired set point tempertures Replaced motherboard. The new motherboard needed to learn my fridge, I believe it is called "fuzzy logic". It took at least 4 days before it began to control the temperature to my set point. Its been working great since for the last several months. 6 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes