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Fault Detection Diagnostics Jobs (NOW HIRING)

Utilize BAS data, cloud analytics platforms, or fault detection & diagnostics (FDD) tools. * Develop dashboards and KPIs for energy performance monitoring. * Conduct ongoing monitoring-based ...

Utilize BAS data, cloud analytics platforms, or fault detection & diagnostics (FDD) tools. * Develop dashboards and KPIs for energy performance monitoring. * Conduct ongoing monitoring-based ...

Utilize BAS data, cloud analytics platforms, or fault detection & diagnostics (FDD) tools. * Develop dashboards and KPIs for energy performance monitoring. * Conduct ongoing monitoring-based ...

Lead FDFI and diagnostic maturity updates related to fault detection, isolation, and reporting logic * Coordinate thread memo generation, review and approval for future system FDFI capabilities

Utilize BAS data, cloud analytics platforms, or fault detection & diagnostics (FDD) tools. * Develop dashboards and KPIs for energy performance monitoring. * Conduct ongoing monitoring-based ...

NY Β· On-site

$105K - $137K/yr

Develop firmware for motor control, battery management, power sequencing, sensor acquisition, fault detection, diagnostics, state‑machine control, and real‑time behavior. * Configure and ...

Showing results 21-40

Fault Detection Diagnostics information

See salary details

$35.5K

$109.6K

$170K

How much do fault detection diagnostics jobs pay per year?

As of Sep 13, 2026, the average yearly pay for fault detection diagnostics in the United States is $109,561.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,500.00 and $138,500.00 per year, depending on experience, location, and employer.

What is fault detection diagnostics?

Fault Detection Diagnostics (FDD) refer to the use of software and analytical tools to automatically identify and diagnose faults or performance issues in systems such as HVAC, industrial equipment, or building automation systems. FDD processes data from sensors and control systems to detect abnormalities, pinpoint their causes, and sometimes suggest corrective actions. This helps organizations reduce downtime, improve efficiency, and prevent costly equipment failures. FDD is widely used in industries focused on maintaining operational reliability and energy efficiency.

What are some typical challenges faced by professionals in fault detection diagnostics, and how can they be addressed?

Professionals in Fault Detection Diagnostics often encounter challenges such as managing large volumes of sensor data, distinguishing between false alarms and genuine issues, and keeping up with evolving building automation technologies. Collaborating closely with building engineers and IT staff is essential to accurately interpret diagnostic results and implement effective solutions. Continuous professional development and leveraging advanced analytics tools can help address these challenges and contribute to more reliable system performance.

What are the key skills and qualifications needed to thrive as a fault detection diagnostics specialist, and why are they important?

To thrive in Fault Detection Diagnostics, you need expertise in control systems, HVAC or industrial equipment, and a background in engineering or a related technical field. Familiarity with building automation systems (BAS), analytics software, and industry certifications such as Certified Energy Manager (CEM) or relevant vendor certifications are highly valuable. Strong problem-solving abilities, attention to detail, and effective communication are essential soft skills for diagnosing issues and collaborating with teams. These skills ensure accurate detection and resolution of system faults, leading to improved operational efficiency and reduced downtime.

What is the difference between Fault Detection Diagnostics vs HVAC Technician?

AspectFault Detection DiagnosticsHVAC Technician
CertificationsHVAC certifications, EPA refrigerant handlingHVAC certifications, EPA refrigerant handling
Work EnvironmentIndustrial, commercial, building automation systemsResidential, commercial HVAC systems
Industry UsageBuilding management, automation, energy efficiencyInstallation, maintenance, repair of HVAC systems

Fault Detection Diagnostics specialists focus on analyzing and identifying issues within building systems using advanced tools, often working in automation and energy management. HVAC Technicians perform hands-on installation, repair, and maintenance of heating, ventilation, and air conditioning systems. While both roles require similar certifications and may work in overlapping environments, Fault Detection Diagnostics emphasizes system analysis and troubleshooting, whereas HVAC Technicians focus on physical system servicing.

Infographic showing various Fault Detection Diagnostics job openings in the United States as of September 2026, with employment types broken down into 3% Internship, 1% As Needed, 84% Full Time, 9% Part Time, 2% Contract, and 1% Nights. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution, with an average salary of $109,561 per year, or $52.7 per hour.

Controls Service Technician II

Cheyenne, WY

LONG Building Technologies
ConstructionΒ β€’Β 201 - 500 employees

$28 - $36.75/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 25 days ago


Job description

Description

Position Purpose

As a LONG Controls Service Technician II, you will support customers by troubleshooting and programming temperature control systems hardware and software based on customer complaints and concerns, or as identified by Fault Detection & Diagnostics (FDD) software. Using your education, experience, and expertise in the commercial HVAC industry, you will perform emergency and preventative maintenance services on installed systems. You will also leverage your experience and skills to support our Impact-Driven Service offering that includes Fault Detection & Diagnostics (FDD) software and task management and resolution. Additionally, you will provide guidance and consultation to the customer client base regarding your job tasks and recommended solutions. You will also mentor, coach and guide junior service technicians in a team environment.  

Benefits 

Medical, Dental and Vision Insurance, Voluntary Life Insurance, Voluntary Accident and Critical Care Insurance, Basic Life, Short-Term and Long-Term Disability, Employee Assistance Program (EAP), 401(k) with Employer Matching contributions, Profit Sharing/Bonus/ Commission Program as applicable, Paid Time Off, Paid Community Service Day, 8 Paid holidays, Tuition Reimbursement, Pet Insurance, Legal and IDShield are offered to eligible employees. 

Essential Duties and Responsibilities 

To perform this job successfully, you must be able to perform each essential duty satisfactorily. Other duties or tasks assigned as required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. The essential functions of this position include but are not limited to:

  • Provide inspections and assessments of the conditions of control systems for physical damage, wear and tear, and signs of degradation
  • Perform preventative maintenance such as cleaning, part replacements, software updates, or system optimizations to minimize the risk of failures and malfunctions
  • Utilize industry experience to troubleshoot any issues with systems to identify and implement solutions
  • Effectively communicate with customers to answer any inquiries, offer guidance, and resolve technical issues 
  • Educate system users about the proper function and upkeep to products
  • Supply information to customers about investing into necessary replacements or vital repairs that are key components to devices
  • Keep record of all repairs and maintenance and properly report issues to the technical supervisor
  • The ability to Independently diagnose a broad range of complex system issues and rectify them to the client’s satisfaction and according to LONG Standards.
  • Provide guidance and support to other controls service technicians about system maintenance, troubleshooting issues and equipment recommendations on and off the jobsite
  • Provide technical expertise and implement standardized procedures to maximize control system efficiency
  • Program databases for supported systems to meet specified sequences of operation and equipment manufacturers recommendations, in accordance with LONG standards and contract documents
  • Perform calibration and check-out of control systems, and ensures that specified sequence of operations and commissioning obligations are met
  • Instruct customer’s personnel on operation and maintenance of temperature control systems and energy conversation routines
  • Independently create pricing and quotes, including time and materials (T&M) estimates, for potential self-performed small projects or upgrades offered to clients.
  • Utilize FDD platform to evaluate faults, diagnostics, equipment and building performance and provide FDD task completion, and confirm task resolution (as applicable)
  • Provide information to update drawings and keep records of equipment for as-built documentation (submit all redlined drafting to application engineers)
  • On-call work may be required on a periodic basis.
  • Other duties assigned as the team and service offerings change/grow. 

Qualifications 

  • 2+ years of field operations experience
  • Associates degree in computer/electronic technical and 1 year's temperature control system start-up, checkout, and service experience or 3-5 years temperature control system start-up, checkout, and service experience.
  • Ability to legally operate a company vehicle.
  • Extensive knowledge of HVAC, control systems, building automation, electrical systems, energy management, engineering, installation, and construction procedures.
  • Proficient programming and troubleshooting skill with KMC, Distech, Tridium/Honeywell, and other equivalent systems.
  • An aptitude for computers and/or mechanical equipment and a strong drive to self-teach and expand knowledge of different systems.
  • Strong analytical skills in solving software and integration challenges.
  • Ability to interpret mechanical plans and specifications.
  • Ability to independently handle multiple tasks simultaneously and willingness to accept responsibility and accountability.
  • Strong customer service and analytical skills.
  • Possesses effective communication skills (written and verbal) 

Preferred Qualifications 

  • 2+ years of tech school
  • Completion of the ASP Program
  • Knowledge of LONG’s operations, procedures, and infrastructure, as it pertains to construction operations.
  • No candidate will meet every single desired qualification. If your experience looks a little different from what we’ve identified and you think you can bring value to the role, we’d love to learn more about you! 

Physical Requirements

  • This work may involve standing for extended periods, climbing ladders or scaffolds, and working in tight spaces.
  • Ability to lift 50 lbs. from floor to countertop and countertop to floor. 
  • Ability to climb ladders and function at heights. 

Environment

  • Inside and outside work environment 
  • Consistent in state travel to jobsites 

Hazards

  • High precarious places
  • General construction worksite hazards
  • Possible driving in inclement weather conditions 

Competencies 

To perform this position successfully, an individual must display the following leadership qualities and/or be able to work within the following supervisory relationships.

  • LONG expects its employees to understand and meet customer needs, collaborate effectively with colleagues, manage potential hazards and risks, and engage with and contribute to the community. These values are part of our core values used as performance metrics and are integral to company culture. 

LONG Building Technologies, Inc. is a leading provider of HVAC equipment and contracting services, serving commercial clients. With a strong commitment to quality and customer satisfaction, we pride ourselves on delivering innovative solutions and exceptional service. Our company operates in an environment where unions play a significant role, ensuring fair labor practices and adherence to industry standards.  

At LONG Building Technologies, we don’t just accept difference - we celebrate it, and we thrive on it for the benefit of our co-workers, our customers, and our company. We are proud to be an equal opportunity employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status.