中文
含义
25E表示冰箱主控板（Main PBA）与显示板或各功能模块之间的通讯异常。三星冰箱内部各电子单元通过通讯总线交换数据，总线信号异常会导致系统无法正常工作。
常见原因
- 主控板与显示板之间的连接线束松动或断裂。
- 线束插头受潮或氧化导致接触不良。
- 主控板通讯电路元件（如通讯IC、光耦）损坏。
- 显示板故障导致通讯总线被拉低。
- 电源电压不稳定引起通讯时序异常。
自助排查
- 拔掉冰箱电源，等待5分钟后重新插电，观察故障是否消失。
- 打开冰箱门检查控制面板与主控板之间的线束连接器是否插紧。
- 检查线束是否有断裂、进水或腐蚀痕迹。
- 如果重新插电后25E仍然出现，可能是主控板或显示板硬件损坏，需联系售后检修。
- 通讯故障定位需要专业检测工具，不建议用户自行拆机检修。
English
Meaning
25E indicates a communication error between the refrigerator main control board (Main PBA) and the display board or functional modules. Internal electronic units in Samsung refrigerators exchange data via a communication bus. A bus signal abnormality prevents normal system operation.
Common Causes
- The wiring harness between the main board and display board is loose or broken.
- The wiring harness connectors are moisture-damaged or oxidized, causing poor contact.
- Communication circuit components (communication IC, optocoupler) on the main board are damaged.
- The display board is faulty, pulling down the communication bus.
- Unstable power supply voltage causing abnormal communication timing.
Self-Check Steps
- Unplug the refrigerator, wait 5 minutes, then restore power and check if the code clears.
- Open the refrigerator door and check that the wiring connector between the control panel and main board is fully seated.
- Inspect the wiring for breaks, water ingress, or corrosion.
- If 25E persists after power cycling, the main board or display board may be damaged — contact service.
- Communication fault diagnosis requires specialized tools — do not attempt self-service disassembly.