1、检查是否对控制系统通电，若无，请通电；
1, check whether the control system is energized, if not, please switch on.
2、门排后尾接线盒正负极是否安装正确，若反，则将其纠正；
2. Whether the positive and negative poles of the terminal box of the rear door row are properly installed, and if it is reversed, correct them.
3、检查遥控手柄背面标签所示遥控编码与遥控接收器部份背面标签所示遥控编码是否一致，若不一致，则查找统一编码或请专业维修员重新编码；
3. Check the remote control code shown in the back label of the remote control handle and the remote control code shown in the back label of the remote control receiver. If not, look for a unified code or ask a professional repairman to recode it.
4、电路本身问题，如虚焊、漏焊等，判断方法：
4, the problems of the circuit itself, such as false welding, missing welding, etc.
在通电状态下按动遥控器开、关、停按键后，听机头内功能电路继电器有无响声，并观察功能电路内指示灯是否亮；如果没有任何反应，请先更换门排线（连接接线盒与功能电路之间的线）或检查是否有接反可能；如果没有，请找专业人士检修或更换功能电路。
When the remote control is on, off and off, listen to the sound of the functional circuit relay in the head and observe whether the indicator light in the functional circuit is on. Please find professionals to repair or replace functional circuits.