目前經常會有用戶反映出現卷簾門忽然能上不能下或能下不能上的卡殼故障，影響使用效果，造成生活上的不便，那么要想趕緊處理就要先找到原因，下面來整理總結了幾點，供大家參考。

　　At present, there are often users who report that the rolling shutter door can suddenly be up or down or down can not be up, which affects the use effect and causes inconvenience in life. Then, in order to quickly deal with it, we must first find the reason. The following points are summarized for your reference.

　　經常出現主要是原因是限位器跑過頭，卷簾門的限位器一般分上限位和下限位。有時忽然停電，用戶卷簾門維修只能用手拉鏈條來開關門，或拉開自動下滑扳手讓門關上。這時假如不留意限位開關是否到位，就輕易造成限位跑過頭的故障。一般假如下限位跑過頭，那下次有電時就會出現只能上不能下的現象。

　　The main reason is that the limiter runs too far. The limiter of the rolling shutter door is generally divided into upper limit and lower limit. Sometimes there is a sudden power failure, and users can only open and close the door by pulling the chain by hand, or pull the automatic sliding wrench to close the door. At this moment if do not notice limit switch whether reach the specified position, cause limit to run overdone easily fault. Generally, if the lower limit runs too far, the next time there will be electricity can only be on the phenomenon.

　　假如是手卷簾門拉上升限位跑過頭則下次有電時就會出現只能下不能上的現象，解決此類情況的題目很簡單，只要把限位開關重新調回傳遞絲桿有效限位范圍內，再重新調整以下限位，鎖牢牢釘螺絲即可，可能是控制線路中的某條線沒接好或被拉出來了。

　　If is a hand book door pull up limit overshooting next, can appear when there is electricity can only on the phenomenon, can't solve the topic of this kind of situation is very simple, as long as the limit switch back again passed screw effective limit range, adjust the following limit again, firmly lock screw can, may be a line in the control circuit is not connected or pulled out.

　　卷簾門出廠時每臺均檢驗過，出現沒接好的可能性較小，有可能是在搬運過程或安裝過程被拉斷。我們也發現過有的安裝師傅將卷簾門的引出線當做提電機的手把來提電機，這種做法是正確的，往往會造成電機引線與繼電器的插頭脫落，造成故障。

　　Every rolling shutter door has been inspected when it leaves the factory. It is less likely that it is not connected well, and it may be pulled off in the process of handling or installation. We have also found that some installation masters will lead the curtain door as the hand handle of the motor to lift the motor, this approach is correct, often cause the plug of the motor lead and relay to fall off, causing failure.

　　濟南卷簾門廠廠家向您友情提示，如上只是按常見卷簾門的故障解決經驗，為了安全起見，建議還是找人士進行維護檢修，不然可能會造成卷簾門的損壞。

　　Ji 'nan rolling shutter door factory would like to remind you that the above is just according to the troubleshooting experience of common rolling shutter doors. For the sake of safety, it is suggested to find professionals for maintenance and repair, otherwise it may cause damage to the rolling shutter doors.

　　卷簾門出現忽然的卡殼故障是什么原因？以上便是問題的出現原因了，如果您對此還有什么問題沒找到原因的話，可以來我們網站www.shaulmediation.com進行咨詢了解。

　　What is the reason for the sudden jam fault of rolling shutter door? The above is the cause of the problem, if you do not find the reason for this problem, you can come to our website www.shaulmediation.com for consultation.