Main control board failure.
Defective PCB Power Supply Rails & DC Bus Filter Capacitors, open/short circuit in the wiring harness, or faulty connector on the electronic control board (pcb) & bus communications.
Reset power. If it persists, replace the main electronic control board. PRO TIP: If your fridge is showing any 'E' code and it's under 5 years old, always try a hard reset (unplug 10 minutes) before calling. 60% of the time it clears temporary glitches.
