中文
含义
E7 为通讯故障。室内机与室外机之间的通讯线路异常或信号传输中断，导致空调无法正常工作。
常见原因
- 室内外机通讯连接线断裂或接触不良
- 通讯线极性接反
- 控制板通讯电路损坏
- 室外机供电异常导致通讯无应答
- 强电磁干扰影响通讯信号
自助排查
- 检查室内外机之间的连接线是否完好
- 确认通讯线接线端子是否牢固，极性是否正确
- 测量通讯线两端电压是否在正常范围
- 断电重启空调，观察是否能恢复通讯
- 如仍无法通讯，联系奥克斯售后检修
English
Meaning
Communication error between indoor and outdoor units. The signal transmission is interrupted.
Common Causes
- Communication wire broken or loose
- Communication wire polarity reversed
- Control board communication circuit damaged
- Outdoor unit powered off causing no response
- Strong electromagnetic interference
Self-Check Steps
- Check wiring between indoor and outdoor units
- Verify communication terminals are tight and polarity is correct
- Measure voltage across communication wires
- Power cycle the unit to see if communication recovers
- If still no communication, contact AUX service