中文
含义
冰箱环境温度传感器故障。E3 表示冰箱的环境温度检测回路异常。环境温度传感器用于感知冰箱周围环境温度，通常安装在门框面板或控制板附近，影响显示屏亮度调节和压缩机运行逻辑。该传感器故障一般不影响核心制冷功能。
常见原因
- 环境温度传感器（NTC 热敏电阻）损坏，阻值异常。
- 传感器安装位置不当，受冰箱内部冷气逸出影响导致读数偏低。
- 传感器插头松动或接触不良。
- 传感器连接线被门框挤压磨损后断裂。
- 主板环境温度检测电路故障。
- 传感器贴附在冰箱金属外壳上，受局部温差影响测量偏差。
自助排查
- 断电后重新插拔环境温度传感器插头。
- 找到传感器位置（通常在冰箱正面门框附近或控制面板后面），检查外观是否完好。
- 用万用表测量传感器阻值，常温下应为 5kΩ–10kΩ。若异常则需更换。
- 环境温度传感器故障通常只是影响附加功能（如环境适应模式），冰箱仍可正常制冷。若无法忍受显示错误，联系 TCL 售后更换传感器。
English
Meaning
The ambient temperature sensor has failed. E3 indicates the refrigerator’s ambient temperature detection loop is abnormal. The ambient temperature sensor detects the temperature around the refrigerator and is typically located near the door frame panel or control board, affecting display brightness adjustment and compressor operation logic. This sensor failure generally does not affect core cooling function.
Common Causes
- The ambient temperature sensor (NTC thermistor) is damaged — abnormal resistance.
- The sensor is incorrectly positioned and affected by cold air escaping from the refrigerator, causing low readings.
- The sensor connector is loose or has poor contact.
- The sensor wire has been worn through by door frame compression and then broken.
- The ambient temperature detection circuit on the main board is faulty.
- The sensor is attached to the metal refrigerator shell and affected by localized temperature differences.
Self-Check Steps
- After powering off, unplug and re-plug the ambient temperature sensor connector.
- Locate the sensor (typically near the front door frame or behind the control panel) and check its physical condition.
- Use a multimeter to measure sensor resistance; at room temperature it should be 5kΩ–10kΩ. Replace if abnormal.
- An ambient temperature sensor fault typically only affects supplementary features (e.g., ambient adaptation mode); the refrigerator can still cool normally. If the display error is bothersome, contact TCL after-sales to replace the sensor.