在伸缩门的中常用的基本方法可概括为：一问、二看、三听、四摸、五测。下面张家口宣化电动门逐一说明,以供参考。总共归纳为五点。
The basic methods commonly used in the design of retractable doors can be summarized as: asking, looking, listening, touching, and testing. The following are explanations of Zhangjiakou Xuanhua electric doors one by one for reference. It can be summarized into five points in total.
一问：即询问,在与客户沟通时,先问清机型，品名，损坏原因，故障现象，再据此详细分析，以便做到有的放矢，对症下药，少走弯路。主要询问的内容有：何时损坏，是否浸水，是否受过撞击，是否电压过高，是否有人改动，是否操作不当，是否遭受雷击，是否有冒烟现象，是否有异常响声等。只有在问明原因后,才能确定下一步的检修方法及处理措施。对于雷击、浸水、冒烟、烧保险等故障机型,切不可贸然通电试机,否则将造成机器再次受创、故障扩大。
One question: That is to inquire. When communicating with customers, first inquire about the model, product name, cause of damage, and fault phenomenon, and then analyze them in detail based on this, in order to achieve targeted and targeted treatment, and avoid detours. The main inquiries include: when it was damaged, whether it was submerged, whether it was hit, whether the voltage was too high, whether it was modified, whether it was operated improperly, whether it was hit by lightning, whether there was smoke, whether there was abnormal noise, etc. Only after inquiring about the cause can the next maintenance method and handling measures be determined. For faulty models such as lightning strikes, water immersion, smoke, and fuse burning, do not rashly power on and test the machine, otherwise it will cause the machine to be damaged again and the fault will expand.
二看：即观察,打开 伸缩门工业门控制外壳后,应仔细查看电路板上是否有元件受损。如元件断裂、发黑发黄、引脚相碰、器件松动、连线错误等。有经验的人员会根据用户提供的相关信息及故障现象,准确地察看伸缩门可疑部位,麻利地找出故障所在。某些接触不良的故障,可在光线较暗处观察可疑部件是否有火花产生来确定(注：某些接触不良故障,尤其是在电源通电后,因故障点接触不良而产生火花)。
Second look: observe carefully whether there are any components damaged on the circuit board after opening the industrial door control casing of the telescopic door. Such as component breakage, black and yellow hair, pin collisions, loose components, incorrect wiring, etc. Experienced personnel will accurately inspect the suspicious parts of the telescopic door based on the relevant information and fault symptoms provided by the user, and quickly identify the fault location. Some poor contact faults can be determined by observing suspicious components in dim light for sparks (note: certain poor contact faults, especially sparks caused by poor contact at the fault point after power is applied).