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The Main Reason Why The Access Control Card Reader Cannot Read The Card

May 26 , 2023

The Main Reason Why The Access Control Card Reader Cannot Read The Card


What is the reason why the access control card reader cannot read the card? If the access control system is used normally when it is first installed, but suddenly the card reader cannot read the card after using it for a period of time, troubleshoot the problem:


The first step is to check whether the power supply is working normally.

The second step is to check whether the card reader is damaged.

The third step is to 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, it can be determined as the following fault reasons: 

The card reader device will generate some static electricity after being used for a period of time. The accumulation of static electricity over time will cause excessive power consumption. The shorter the usage time, the faster the aging of the card reader. the


Solve the problem: 

Before installation, you should choose a special power supply with good quality and power for access control. If this happens after use, separate the power supply for the electric lock and the card reader, and add another power supply to power the card reader separately.

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


Troubleshooting: 

The first step: whether the card reader is installed on the metal

The second step: whether it is to swipe the card in and out, if the card is swiped in and out, check the distance between the two card readers


Cause of the issue: 

If the card reader is installed on a metal, because the metal has a shielding function, part of the radio wave 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 distance between the two card readers is too close. The two card readers emit radio waves at the same time, and the radio waves interfere with each other, which will cause slow card reading. the


Solve the problem: 

When installing, observe the installation environment of the card reader. If the back of the card reader is metal, a plastic plate (special material) should be installed behind the card reader when installing the card reader. If conditions do not permit, install a shielding plate on one of the card readers.


Author: Written by Anna Zhang 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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