中文
含义
化霜温度传感器开路或短路，影响蒸发器化霜周期控制。
常见原因
- 化霜传感器插头松动或接触不良
- 传感器在化霜高温循环中老化损坏
- 传感器探头从蒸发器盘管上脱落
- 化霜加热器热辐射导致传感器读数偏高
- 线束在冷冻室内被冰层挤压断裂
自助排查
- 断电后重新插拔化霜传感器接头
- 用万用表测量传感器阻值，结霜低温时应较高
- 确认传感器探头紧贴蒸发器盘管
- 检查化霜加热器是否与传感器距离过近
- 若阻值异常，更换同型号化霜传感器
English
Meaning
Defrost temperature sensor open or short circuit. Affects evaporator defrost cycle control.
Common Causes
- Loose or poor contact of the defrost sensor connector
- Sensor degraded from repeated defrost high-temperature cycles
- Sensor probe detached from the evaporator coil
- Thermal radiation from the defrost heater causing elevated sensor readings
- Wiring pinched or broken by ice buildup inside the freezer
Self-Check Steps
- Power off and reseat the defrost sensor connector
- Measure sensor resistance with a multimeter; should be high at frost temperatures
- Verify the sensor probe is tightly attached to the evaporator coil
- Check if the defrost heater is positioned too close to the sensor
- Replace with the same type of defrost sensor if resistance is abnormal