1. In this case, first of all, we should check the ground sensor controller. If the green light of the ground sensor controller is always on at this time, and the manual and automatic switches cannot be operated at this time, press and hold the reset key on the ground sensor for more than 5 seconds. After releasing, the red light will be on for a long time and the green light will be off. If it is estimated that the green light is still on after reset, check whether there is a corresponding volume of iron next to the ground induction coil.

2、电动卷帘门在自动的状态下的时候，超过设定延时关闭时间，卷门的门体仍然没有下降的话，我们要检查红外线的指示灯是红色还是绿色的，绿色的话就为正常状态，红色的表示故障，适当调整红外线位置直到绿灯亮起来。

2. When the electric rolling shutter door is in the automatic state and exceeds the set delay closing time, if the door body of the rolling door still does not fall, we should check whether the infrared indicator light is red or green. If it is green, it is in the normal state. If it is red, it indicates a fault. Adjust the infrared position appropriately until the green light is on.

3、卷帘门的门体老是上下反复运行。这样的情况下我们要检查门体在下降过程中是否有物体或者帘体本身切断红外线状况，我们也采取相对应的办法进行故障排除。

3. The door body of the rolling shutter door always runs up and down repeatedly. In this case, first of all, we should check whether there is an object or the curtain itself cuts off the infrared ray during the descent of the door body. We also take corresponding methods to troubleshoot.

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