When your Samsung refrigerator's electronics experience issues, the PCB assembly EEPROM (DA94-02679K) may need replacement. This genuine Samsung part is designed for 28 CU. FT. French Door refrigerators. Symptoms of a failing PCB may include erratic temperature control, display malfunctions, or unresponsive buttons. Addressing these problems with the correct assembly helps restore proper appliance function. Before purchasing, verify your device's model number for compatibility.