卷帘门作为高频使用的设备，在日复一日的升降中难免会出现一些小毛病。很多使用者在遇到门体不动、噪音变大等问题时往往束手无策。其实，许多常见故障都可以通过简单的自查和日常保养来预防或解决。掌握以下几点，你也能成为卷帘门的“半个”。

As a high-frequency device, rolling shutter doors are inevitably prone to some minor problems during daily lifting and lowering. Many users are often helpless when encountering problems such as the door not moving or increasing noise. In fact, many common faults can be prevented or resolved through simple self inspection and daily maintenance. By mastering the following points, you can also become a "semi expert" in rolling shutter doors.

常见故障一：门体完全不动

Common fault one: The door body does not move at all

这是常见的问题。遇到这种情况，可以按照以下优先级进行排查：

This is the most common problem. In this situation, you can troubleshoot according to the following priority:

1. 检查电源： 查看控制箱的电源指示灯是否亮起。如果不亮，检查配电箱的总闸和卷帘门的专用空气开关是否跳闸。

1. Check the power supply: First, check if the power indicator light on the control box is on. If it doesn't light up, check if the main switch of the distribution box and the dedicated air switch of the rolling shutter door have tripped.

2. 检查机械卡阻： 如果电源正常，尝试使用手动拉链进行升降。如果手动能拉动，说明机械部分无卡阻，问题出在电气系统（如按钮损坏、线路断路等）。如果手动也拉不动，则很可能是导轨内有异物卡住，或帘片本身发生变形。

2. Check for mechanical blockage: If the power supply is normal, try using a manual zipper for lifting. If it can be manually pulled, it indicates that there is no blockage in the mechanical part, and the problem lies in the electrical system (such as button damage, circuit breakage, etc.). If it cannot be manually pulled, it is likely that there is a foreign object stuck in the guide rail or the curtain itself is deformed.

3. 检查限位开关： 上下限位开关如果卡死或移位，也会导致电机无法启动。

3. Check the limit switch: If the upper and lower limit switches are stuck or displaced, it can also cause the motor to fail to start.

常见故障二：只能单向运行（如只降不升）

Common fault 2: Can only operate in one direction (such as only lowering without raising)

这种故障非常危险，尤其在火灾等紧急情况下可能导致人员无法疏散，必须立即修复。

This kind of malfunction is very dangerous, especially in emergency situations such as fires, which may cause personnel to be unable to evacuate and must be repaired immediately.

1. 检查按钮： 尝试使用控制箱上的备用按钮，或短接对应的控制端子。如果此时门体能正常升降，说明是墙上的操作按钮触点损坏。

1. Check button: Try using the spare button on the control box or short circuiting the corresponding control terminal. If the door can move up and down normally at this time, it means that the operating button contacts on the wall are damaged.

2. 听声音判断： 在按下按钮时，仔细听控制箱内是否有接触器吸合的“咔哒”声。如果没有声音，很可能是控制箱内的交流接触器线圈烧毁或触点烧蚀。

2. Judging by listening to the sound: When pressing the button, carefully listen for the "click" sound of the contactor closing inside the control box. If there is no sound, it is likely that the coil of the AC contactor inside the control box is burnt or the contacts are burned.

3. 检查热继电器： 电机长时间运行或负载过大可能导致热继电器过载跳闸，复位后即可恢复正常。

3. Check the thermal relay: Prolonged operation of the motor or excessive load may cause the thermal relay to overload and trip. After resetting, it can be restored to normal.

日常保养：防患于未然

Daily maintenance: prevent problems before they happen

良好的保养习惯能极大延长卷帘门的使用寿命，避免突发故障。

Good maintenance habits can greatly extend the service life of rolling shutter doors and avoid sudden malfunctions.

1. 定期润滑： 每年少为链条、轴承、滑动轮等传动部件添加一次润滑油，保证运行顺畅，减少磨损和噪音。

1. Regular lubrication: Add lubricating oil to transmission components such as chains, bearings, and sliding wheels at least once a year to ensure smooth operation, reduce wear and noise.

2. 清洁导轨： 定期清理导轨内的灰尘、污垢和异物，防止门体在升降过程中受阻。

2. Cleaning the guide rail: Regularly clean the dust, dirt, and foreign objects inside the guide rail to prevent the door from being obstructed during the lifting process.

3. 检查部件： 定期检查手动拉链是否完好，控制按钮是否灵敏，帘片有无变形或损伤。

3. Component inspection: Regularly check whether the manual zipper is intact, whether the control buttons are sensitive, and whether the curtain is deformed or damaged.

4. 功能测试： 对于防火卷帘门，每月应少测试一次其与消防系统的自动联动功能，确保在紧急情况下万无一失。

4. Functional testing: For fireproof rolling shutter doors, their automatic linkage function with the fire protection system should be tested at least once a month to ensure that they are foolproof in emergency situations.

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