原因是感应探头的探测范围太小或者内部有积尘现象；门体太重，超出了主机的马达牵引力。

The reason is that the detection range of the probe is too small or there is dust inside the door, the door is too heavy, beyond the host motor traction.

youdao

原因是感应探头的探测范围太小或者内部有积尘现象；门体太重，超出了主机的马达牵引力。

The reason is that the detection range of the probe is too small or there is dust inside the door, the door is too heavy, beyond the host motor traction.

youdao