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Festo VFD refurbishment for downtime recovery

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Festo VFD Repair Services by Roc Industrial LLC

Is your Festo VFD (Variable Frequency Drive) malfunctioning, causing costly downtime? Roc Industrial LLC specializes in fast, reliable Festo VFD repair services to get your operations back up and running quickly. We understand the critical role these drives play in your automation systems, and our experienced technicians are equipped to diagnose and repair a wide range of Festo VFD models. With our commitment to quality, speed, and expertise, Roc Industrial LLC is your trusted partner for Festo VFD refurbishment and repair.



About Festo VFDs

Festo is a globally recognized leader in automation technology, providing innovative solutions for various industries. Their variable frequency drives (VFDs) are integral components in many automated systems, controlling the speed and torque of electric motors to optimize performance and efficiency. Festo VFDs are known for their reliability and advanced features, making them a popular choice in applications ranging from packaging and material handling to robotics and assembly lines.


Festo VFDs are designed to provide precise motor control, energy savings, and enhanced system performance. They are commonly used in CNC machines, robotic arms, conveyor systems, and other automated equipment. Their robust design and advanced control algorithms make them suitable for demanding industrial environments. However, even the most reliable VFDs can experience failures due to age, wear and tear, power surges, or environmental factors. When this happens, you need a trusted repair partner like Roc Industrial LLC to restore your Festo VFD to optimal working condition.



Supported Models & Series

We repair a wide range of Festo VFD models and series, including but not limited to:

  • Festo CMMT-AS Series Servo Drives

  • Festo CMMP-AS Series Servo Drives

  • Festo VCDA Series Compact Drives

  • Festo VZXF Series Frequency Inverters

  • Festo NEFC Series Motor Controllers

  • Festo SEC-AC Series Servo Controllers

  • Festo SPC11 Series Programmable Logic Controllers with Integrated Drive Control

  • Festo CMMS-ST Series Stepper Motor Controllers

  • Festo Variants of VFD-E Series

  • Festo Variants of VFD-M Series

  • Festo Variants of VFD-B Series

If you don't see your specific Festo VFD model listed, please contact us. Our experienced technicians can likely repair it, or source a replacement.



Common Festo VFD Problems We Repair

Festo VFDs, like all electronic devices, are susceptible to a variety of failures. Recognizing these common issues can help you identify problems early and minimize downtime. Here are some of the common Festo VFD problems we repair:

  • No Output: The VFD fails to provide any output voltage to the motor, preventing it from running.

  • Overvoltage Faults: The VFD detects excessive voltage levels, triggering a fault and shutting down the drive.

  • Undervoltage Faults: The VFD detects insufficient voltage levels, triggering a fault and shutting down the drive.

  • Communication Errors: The VFD loses communication with the control system, preventing proper operation. This can include issues with Ethernet/IP, Profibus, or other communication protocols.

  • Overcurrent Faults: The VFD detects excessive current draw, indicating a potential motor or wiring issue.

  • Overheating: The VFD overheats due to inadequate cooling, component failure, or excessive load.

  • Blown Fuses: Internal fuses blow due to power surges or component failures.

  • Encoder Faults: Issues with the motor encoder prevent accurate speed and position control.

  • Drive Not Responding: The VFD does not respond to commands or inputs.

  • Parameter Corruption: VFD parameters become corrupted, leading to incorrect operation.

  • Display Issues: The VFD display is blank, dim, or shows incorrect information.

  • Internal Component Failures: Failures of internal components such as capacitors, IGBTs, or diodes.

  • Ground Faults: The VFD detects a ground fault, indicating a potential wiring or insulation problem.


Our Festo VFD Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality Festo VFD repairs. Our process is designed to quickly identify the root cause of the problem and implement effective solutions to restore your VFD to optimal performance.

  1. Free Evaluation and Quote: We offer a free evaluation of your faulty Festo VFD to determine the extent of the damage and provide you with a detailed repair quote. This quote includes all costs associated with the repair, so you know exactly what to expect.

  2. Shipping Instructions: Once you approve the quote, we provide clear and easy-to-follow shipping instructions to ensure your VFD arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic equipment to pinpoint the exact cause of the VFD failure. We conduct thorough testing of all critical components to identify any underlying issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. Our extensive inventory of parts allows us to quickly address a wide range of VFD problems.

  5. Load Testing and Quality Checks: After the repair, we subject the VFD to rigorous load testing to ensure it performs reliably under real-world conditions. We conduct thorough quality checks to verify that all parameters are within specifications.

  6. Warranty-Backed Return and Support: All of our Festo VFD repairs are backed by a comprehensive warranty. If you experience any issues after the repair, simply contact us, and we will resolve the problem promptly. We also provide ongoing technical support to assist you with any questions or concerns.


Nationwide Repair Services

Roc Industrial LLC provides Festo VFD repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help you get your Festo VFD repaired quickly and efficiently. We offer fast shipping options and quick turnaround times to minimize downtime and keep your operations running smoothly.


We understand that downtime can be costly, which is why we prioritize speed and efficiency in our repair process. Our goal is to get your Festo VFD back to you as quickly as possible, without compromising on quality. With our nationwide repair services, you can rely on Roc Industrial LLC to be your trusted partner for all your Festo VFD repair needs.



Why Choose Roc Industrial LLC?

When it comes to Festo VFD repair, Roc Industrial LLC offers several key advantages:

  • 30+ Years of Experience: Our technicians have over 30 years of experience in industrial electronic repair, giving us the expertise to handle even the most complex Festo VFD problems.

  • Warranty-Backed Repairs: All of our repairs are backed by a comprehensive warranty, providing you with peace of mind.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to quickly address a wide range of VFD problems, minimizing downtime.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, which is why we offer fast turnaround times, often with same-day service available.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring the highest standards of quality and reliability.

  • Exceptional Customer Support: We are committed to providing exceptional customer support, answering your questions and addressing your concerns promptly and professionally.

Don't let a faulty Festo VFD slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Festo VFD repair. We are your trusted partner for Festo VFD refurbishment and troubleshooting.

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