CH03 - lg Air Conditioner

中文

含义

CH03 表示压缩机排气温度超过安全运行限值，有损坏压缩机的风险。

常见原因

1. 制冷剂不足或系统漏气。
2. 外机冷凝器毛细管太脏或被堵塞。
3. 压缩机过载导致过热。
4. 节流装置或系统阻塞导致排气温度过高。

自助排查

1. 立即停止使用空调，拔掉电源。
2. 检查外机冷凝器是否清洁，确保散热畅通。
3. 检查空调过滤网是否干净，清理后再尝试运行。
4. 如故障仍在，请联系LG售后检查制冷剂压力及系统。

English

Meaning

CH03 indicates the compressor discharge temperature has exceeded the safe operating limit, posing risk of compressor damage.

Common Causes

1. Refrigerant charge too low or system leaking, causing insufficient cooling.
2. Outdoor unit condenser coil is dirty or blocked, reducing heat dissipation.
3. Compressor is overheating due to overload condition.
4. Expansion valve or system restriction causing high discharge temperature.

Self-Check Steps

1. Stop using the AC immediately and unplug it.
2. Check that the outdoor condenser coil is clean and free from obstructions for proper heat dissipation.
3. Inspect and clean the AC air filter before attempting to run again.
4. If the fault persists, contact LG service to check the refrigerant pressure and system conditions.