CH14 - LG 空调

中文

含义

CH14 表示内机与外机之间通信故障，双方无法正常交换数据。

常见原因

1. 内外机通信线松动或脱落。
2. 通信线（P/Q端子）极性接反。
3. 外机控制板通信电路故障。
4. 内机控制板通信电路故障。

自助排查

1. 拔掉电源，等待5分钟后重新启动。
2. 检查内外机之间的高压线和信号线是否正确连接。
3. 如仍报错，需联系专业人员检查内外机控制板及通信线路。

English

Meaning

CH14 indicates a communication error between the indoor and outdoor units.

Common Causes

1. Communication wiring between indoor and outdoor units loose or disconnected.
2. Polarity of communication wires (P,Q terminal) reversed.
3. Outdoor unit PCB communication circuit faulty.
4. Indoor unit PCB communication circuit faulty.

Self-Check Steps

1. Turn off the AC power, wait 5 minutes, and restart.
2. Check that the high-voltage and signal wiring between indoor and outdoor units is correctly connected.
3. If the error persists, contact a professional technician to inspect the indoor/outdoor control boards and communication wiring.