中文
含义
CH04 表示外机管温传感器故障，传感器读数异常或传感器开路/短路。
常见原因
- 外机管温传感器接线束脱落或松动。
- 传感器元件老化导致开路或短路。
- 传感器线被小动物或环境因素损坏。
- 主控制板传感器接口电路损坏。
自助排查
- 拔掉空调电源，等待5分钟后重新启动。
- 检查外机管温传感器接线束是否嵌紧。
- 如仍报错，需联系专业人员检查更换传感器或控制板。
English
Meaning
CH04 indicates a fault in the outdoor unit coil pipe temperature sensor. The sensor reading is out of range or the sensor is open/short-circuited.
Common Causes
- Outdoor coil pipe temperature sensor harness disconnected or loose.
- Sensor element open-circuit or short-circuit due to aging.
- Sensor wire damaged by animals or environmental factors.
- Main PCB sensor input circuit failed.
Self-Check Steps
- Turn off the AC power, wait 5 minutes, and restart.
- Inspect the outdoor coil pipe temperature sensor connector to ensure it is securely attached.
- If the error persists, contact a professional technician to replace the sensor or control board.