中文
含义
室内环境温度传感器开路或短路，系统无法准确检测室温。
常见原因
- 传感器插头松动或接触不良
- 传感器本身开路或短路损坏
- 传感器与主板间的连接线断裂
- 传感器检测头积灰或被异物遮挡
- 主控板传感器接口电路故障
自助排查
- 断电后拔插室内机传感器插头，确保接触可靠
- 用万用表测量传感器阻值，室温下应为 5kΩ-15kΩ（视型号而定）
- 清理传感器探头附近的灰尘和异物
- 若阻值异常（无穷大或为零），需更换同规格传感器
- 检查传感器线束是否有破损或断裂
English
Meaning
Indoor ambient temperature sensor open or short circuit. The system cannot accurately detect room temperature.
Common Causes
- Loose or poor contact of the sensor connector
- Open or short circuit failure of the sensor itself
- Broken wiring between the sensor and the mainboard
- Dust buildup or debris blocking the sensor probe
- Faulty sensor interface circuit on the main control board
Self-Check Steps
- Power off, then reseat the indoor unit sensor connector to ensure good contact
- Measure sensor resistance with a multimeter; should be 5kΩ-15kΩ at room temperature (varies by model)
- Clean dust and debris from the sensor probe area
- If resistance is abnormal (infinite or zero), replace with a sensor of the same specification
- Inspect sensor wiring for any damage or breaks