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Fanuc servo amplifier diagnostics and rebuild

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.

Fanuc Servo Amplifier Repair Services by Roc Industrial LLC

Is your Fanuc servo amplifier malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Fanuc servo amplifier repair services. Servo amplifiers are critical components in CNC machines, robotics, and automation systems, controlling the precise movement of motors. When they fail, production grinds to a halt. Trust Roc Industrial LLC to get your Fanuc servo amplifiers back in optimal working condition quickly and efficiently. We offer comprehensive diagnostics, component-level repairs, and rigorous testing to ensure lasting performance.



About Fanuc Servo Amplifiers

Fanuc is a global leader in factory automation, renowned for its high-quality and reliable servo amplifiers. These amplifiers are integral to the performance of CNC machines, robotics, and various automated systems. Fanuc servo amplifiers are designed to provide precise control and power to servo motors, enabling accurate and efficient motion control. They are known for their robust construction and advanced features, making them a staple in demanding industrial environments. However, even the most reliable equipment can experience failures over time due to wear and tear, electrical surges, or environmental factors.


Fanuc servo amplifiers are widely used in industries such as automotive, aerospace, manufacturing, and electronics. Their applications range from controlling robotic arms in assembly lines to driving the axes of CNC milling machines. The precision and reliability of Fanuc servo amplifiers are crucial for maintaining productivity and quality in these applications. Roc Industrial LLC understands the critical role these amplifiers play and is committed to providing top-notch repair services to minimize downtime and maximize operational efficiency.



Supported Models & Series

We repair a wide range of Fanuc servo amplifier models and series, including but not limited to:

  • A06B-6058 Series

  • A06B-6077 Series

  • A06B-6088 Series

  • A06B-6093 Series

  • A06B-6114 Series

  • A06B-6134 Series

  • A06B-6141 Series

  • A06B-6164 Series

  • A06B-6220 Series

  • Beta Series Servo Amplifiers

  • Alpha Series Servo Amplifiers

  • Alpha i Series Servo Amplifiers

  • SVPM Series

  • SVM1 Series

  • SVM2 Series

  • SVM3 Series

  • SVM4 Series

  • AiSV Series

If you don't see your specific Fanuc servo amplifier model listed, please contact us. Our experienced technicians can likely repair it. We are constantly expanding our capabilities to support the latest Fanuc servo amplifier technology.



Common Fanuc Servo Amplifier Problems We Repair

Fanuc servo amplifiers can experience a variety of issues that can disrupt your operations. Roc Industrial LLC is equipped to diagnose and repair a wide range of common and complex failures. Here are some of the most frequent problems we encounter:

  • No Output: The amplifier fails to provide power to the servo motor, resulting in a complete lack of motion. This can be caused by internal component failures, power supply issues, or control circuit problems.

  • Overvoltage Errors: The amplifier detects excessive voltage levels, triggering a fault and shutting down the system. This can be due to power supply fluctuations, regenerative energy issues, or faulty components within the amplifier.

  • Overtemperature Errors: The amplifier overheats, leading to a shutdown to prevent damage. This can be caused by insufficient cooling, excessive load, or internal component failures.

  • Communication Errors: The amplifier loses communication with the CNC controller or other devices, preventing proper operation. This can be due to faulty communication cables, network issues, or problems with the amplifier's communication circuitry.

  • Blown Fuses: Fuses within the amplifier blow repeatedly, indicating an underlying problem such as a short circuit or component failure. Replacing the fuse without addressing the root cause will only lead to further issues.

  • Encoder Faults: The amplifier detects errors in the feedback signal from the encoder, which is used to monitor the position and speed of the servo motor. This can be caused by a faulty encoder, damaged encoder cable, or problems with the amplifier's encoder interface.

  • Drive Faults: Internal drive circuitry malfunctions, leading to operational failure.

  • Current Overload: The amplifier experiences excessive current draw, indicating a potential motor issue or internal fault.

  • Positioning Errors: Inaccurate positioning of the servo motor due to amplifier malfunction.

  • Excessive Vibration: Unusual vibration during operation, often linked to amplifier instability.


Our Fanuc Servo Amplifier Repair Process

Roc Industrial LLC follows a meticulous and proven process for repairing Fanuc servo amplifiers, ensuring the highest quality and reliability. Our process includes:

  1. Free Evaluation and Quote: Contact us with details about your Fanuc servo amplifier and the issues you are experiencing. We offer a free evaluation to determine the extent of the damage and provide you with a detailed quote for the repair.

  2. Shipping Instructions: Once you approve the quote, we provide clear and concise shipping instructions to ensure your amplifier arrives safely at our repair facility. We recommend using appropriate packaging materials to prevent further damage during transit.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use state-of-the-art test equipment to thoroughly diagnose the amplifier. We identify the root cause of the failure and assess the condition of all critical components.

  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 expedite the repair process and minimize downtime.

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

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. If you experience any issues after the repair, we will provide prompt and responsive support to resolve the problem.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc servo amplifier 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 equipment back up and running quickly. 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 provide you with the fastest possible turnaround without compromising on quality. Contact us today to learn more about our nationwide repair services and how we can help you minimize downtime.



Why Choose Roc Industrial LLC?

When it comes to Fanuc servo amplifier repair, Roc Industrial LLC is the trusted choice for businesses across the country. Here's why:

  • 30+ Years of Experience: With over three decades of experience in industrial electronics repair, we have the knowledge and expertise to handle even the most complex Fanuc servo amplifier repairs.

  • Warranty-Backed Repairs: We stand behind our repairs with a comprehensive warranty, giving you peace of mind knowing that your equipment is protected.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to expedite the repair process and minimize 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, from the initial evaluation to the final repair and beyond.

Don't let a faulty Fanuc servo amplifier slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Fanuc servo amplifier repair.

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