(614) 334-3300

Fault Detection and Diagnosis Solutions

Unlock the power of proactive maintenance and optimize your system’s performance with Fault Detection and Diagnosis (FDD) solutions by BCI Controls. Our cutting-edge technology and expert analysis enable us to detect and diagnose faults in various systems with unparalleled accuracy and efficiency. With years of experience in the industry, our team of skilled engineers and technicians is dedicated to providing customized FDD solutions tailored to your specific needs, ensuring that your systems operate at peak performance levels.


Experience the peace of mind that comes with proactive maintenance and timely fault detection. At BCI Controls, we’re committed to your success, offering ongoing support and assistance to help you achieve your goals. From initial assessment to implementation and beyond, trust BCI Controls to be your partner in optimizing system reliability, reducing downtime, and maximizing efficiency. Contact us today to learn more about our comprehensive FDD solutions and take the first step towards a more efficient and reliable system.

FDD Fault Detection and Diagnosis (FDD)

About FDD (Fault Detection and Diagnostics)

What is Fault Detection and Diagnostics in Buildings?

In essence, Fault Detection and Diagnostics, or FDD, is the process of uncovering errors in physical systems while attempting to identify the source of the problem. In buildings, these physical systems include HVAC&R – systems designed to maintain the indoor environment acceptable to people, products and equipment – as well as lighting, elevators and any specialized equipment residing in the confines of the thousands of buildings all around us.



The term Automated Fault Detection and Diagnostics, or AFDD, has become more prominent lately, particularly in the building industry. In general, the differentiation made is that while FDD commonly refers to the process, AFDD refers to the technologies used to implement FDD processes. An AFDD tool is therefore equipped to implement automated FDD with as little human intervention as possible.



How does Fault Detection and Diagnostics work?

The basic methodology in FDD involves four key processes, fault detection, fault isolation, fault identification, and fault evaluation, as shown in figure 1. Once it has been determined that a fault has occurred in the system, it is isolated and classified based on the fault type, location and detection time. Fault isolation, together with fault identification – which includes determining the fault size and how it behaves at different times – are commonly referred to as fault diagnosis. Fault evaluation is basically an assessment to determine the fault’s impact on system performance, often based on different prioritization categories including energy, comfort, environmental and cost impact.



Four key processes in Fault Detection and Diagnostics 

Kaizen FDD Overview

Why Choose BCI Controls for FDD?

Proactive Approach

Our FDD solutions enable proactive maintenance and troubleshooting, helping you address potential issues before they escalate into costly problems, saving you time and money in the long run. By implementing proactive monitoring and diagnostic measures, we help you maintain peak performance and extend the lifespan of your systems, ensuring maximum reliability and efficiency.



By detecting faults early and providing timely diagnosis, our FDD solutions help you minimize maintenance costs, reduce energy consumption, and prolong the lifespan of your systems. Our cost-effective approach focuses on maximizing the value of your investment, delivering tangible results that translate into long-term savings and improved operational efficiency.


Reliable Support

With BCI Controls, you can count on reliable support and assistance every step of the way. Our dedicated team is committed to ensuring the success of your FDD implementation and providing ongoing support to maximize the benefits for your organization. We are always available to address your concerns, answer your questions, and provide expert guidance to help you achieve your goals.


With years of experience in the industry, our team at BCI Controls possesses the knowledge and expertise to effectively detect and diagnose faults in your systems. We stay abreast of the latest advancements and best practices in fault detection and diagnosis, ensuring that you receive the most accurate and reliable solutions tailored to your needs.


Advanced Technology

We utilize cutting-edge technology and innovative methodologies to accurately identify and diagnose faults in various systems, ensuring optimal performance and efficiency. Our investment in state-of-the-art equipment and software enables us to deliver precise results quickly and efficiently, minimizing downtime and disruption to your operations.


Customized Solutions

At BCI Controls, we understand that every system is unique. That’s why we offer tailored FDD solutions to meet your specific needs and requirements, optimizing performance and minimizing downtime. Our team works closely with you to assess your systems, identify potential areas for improvement, and develop customized strategies to address them effectively.

Scroll to Top