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Causes and solutions for the access control card reader unable to read the card

May 08 , 2021

What is the reason why the access control card reader cannot read the card? If everything is normal when theaccess control system is first installed, and the card reader cannot read the card suddenly after a period of use, troubleshoot the problem:


  The first step is to check whether the power supply is working properly


   The second step, check whether the card reader is damaged


   The third step, check whether there is strong magnetic interference around the card reader


   If the above steps are eliminated and the card reader still does not read the card, the following fault causes can be determined:


   The card reader device will generate some static electricity when used for a period of time. The accumulation of static electricity over a long period of time causes excessive power consumption. The shorter the use time, such a problem indicates that the card reader ages too quickly.

Metal Access reader.jpg


Solve the problem:


   Before installation, choose a special power supply with good quality and gated power. If this happens after use, power the electric lock and the card reader separately, and add a power supply to the card reader separately.


  The reading speed of the access control card reader is slow and the sensing distance is getting closer. Solve the problem:


  The first step: whether the access control reader is installed on the metal;


   Step 2: Whether to swipe in and out, such as swiping in and out to see how far the two card readers are.


cause of the issue:


   If the card reader is mounted on metal, because metal has a shielding function, part of the radio waves emitted by the card reader is shielded by the metal. If the card is swiped in and out, the same problem will occur if the two card readers are installed too close. The two readers emit radio waves at the same time, and the mutual interference of the radio waves will cause slow card reading, and the card readers that are too close will not read the card.


  Solve the problem:


Observe the installation environment of the card reader during installation. For example, the back of the card reader is made of metal. When installing the card reader, a plastic plate (special material) should be added to the back of the card reader. If conditions do not permit, a shielding plate should be installed on one of the card readers.


Author: Written by S4A from S4A INDUSTRIAL CO.,LIMITED


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  S4A-Security For All.S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. We attach great importance to the partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years.       S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customer...<
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    Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:2nd Floor of Jinmin'an Industrial Zone, #529, Bulong Rd. Bantian St. Longgang Dist. Shenzhen, PRC.

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