E4 - 老板电器 油烟机

中文

含义

WiFi模块通信异常。主控板检测到与WiFi模组之间通信失败，或WiFi模组无法正常初始化，导致智能功能（远程控制、APP连接）不可用。

常见原因

1. WiFi模组供电电压异常（3.3V或5V不稳）
2. 模组固件异常导致死机
3. 主控板与WiFi模组串口（UART）通信中断或波特率不匹配
4. 模组附近强电磁干扰（如微波炉同时工作）
5. WiFi模组焊接不良或虚焊
6. 路由器2.4G频段信道设置与模组不兼容

自助排查

1. 断电重启烟机，同时重启家庭路由器，等待2分钟后观察是否恢复
2. 检查家用WiFi是否为2.4GHz频段（部分Robam模组不支持5GHz）
3. 远离强干扰源（微波炉等）使用，确认是否偶发
4. 若长期不恢复，尝试长按网络配置键重新配网
5. 如以上均无效，需更换WiFi模组或主控板

English

Meaning

WiFi module communication failure. The main control board detects a communication breakdown with the WiFi module, or the module fails to initialize, making smart features (remote control, app connectivity) unavailable.

Common Causes

1. Abnormal WiFi module supply voltage (unstable 3.3V or 5V)
2. Module firmware crash or hang
3. UART communication loss or baud rate mismatch between the mainboard and WiFi module
4. Strong electromagnetic interference from nearby appliances (e.g., microwave oven)
5. Poor soldering or cold joints on the WiFi module
6. Router 2.4 GHz channel setting incompatible with the module

Self-Check Steps

1. Power cycle the range hood and restart your home router; wait 2 minutes and check for recovery
2. Verify your home WiFi is on the 2.4 GHz band — some Robam modules do not support 5 GHz
3. Temporarily move away from strong EMI sources (microwave ovens, etc.) and test
4. If the issue persists long-term, press and hold the network config button to re-pair the device
5. If none of the above works, replace the WiFi module or main control board