Scott A Malabar , FL October 24, 2025 Appliance: General Electric Refrigerator ZISP480DKBSS Ge Refrigerator Zisp480dkbss: Blinking display no cooling. How to replace Power Supply Pcb (Control Board). It needed a new control board . I replaced the same board 6 years ago Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes