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GE Series 90 PLC Repair Specialists

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.

GE Series 90 PLC Repair Services by Roc Industrial LLC

Is your GE Series 90 PLC malfunctioning and causing downtime? Roc Industrial LLC specializes in comprehensive GE Series 90 PLC repair services, ensuring your critical automation systems are back online as quickly as possible. We understand the importance of minimizing disruptions to your operations, and our team of experienced technicians is dedicated to providing fast, reliable, and cost-effective solutions. Trust Roc Industrial LLC as your trusted partner for all your GE Series 90 PLC repair needs. We offer free evaluations and warranty-backed repairs.



About GE Series 90 PLCs

The GE Series 90 Programmable Logic Controllers (PLCs) are a robust and widely used family of controllers in industrial automation. Known for their reliability and versatility, the GE Series 90 PLCs are deployed in a vast array of applications, from simple machine control to complex distributed control systems. These PLCs are designed to withstand harsh industrial environments and provide dependable performance for years.


GE's Series 90 PLCs are integral to industries such as manufacturing, oil and gas, power generation, and water treatment. Their modular design allows for easy expansion and customization, making them a popular choice for both new installations and legacy system upgrades. The Series 90 family includes various models, each tailored to specific application requirements, ensuring optimal performance and efficiency. Roc Industrial LLC has extensive experience repairing and servicing the entire GE Series 90 PLC line.



Supported Models & Series

We repair a wide range of GE Series 90 PLC models and series, including but not limited to:

  • Series 90-30 PLCs (IC693)

  • Series 90-70 PLCs (IC697)

  • CPU311, CPU313, CPU315, CPU331, CPU350, CPU351, CPU352, CPU360, CPU363, CPU364, CPU372, CPU374

  • I/O Modules (Discrete and Analog)

  • Power Supplies

  • Communication Modules (e.g., Ethernet, Profibus)

  • Specific models such as IC693CPU363, IC697CPX935, IC693ALG221, IC697PWR711

  • GE Fanuc Series 90-30

  • GE Fanuc Series 90-70


Common GE Series 90 PLC Problems We Repair

GE Series 90 PLCs are known for their durability, but like all electronic equipment, they can experience failures over time. We understand the frustration and downtime these issues can cause. Here are some of the common problems we repair:

  • CPU Failures: PLC not starting, program errors, or intermittent operation.

  • Power Supply Issues: No output, low voltage, or overheating.

  • I/O Module Failures: Input signals not registering, output signals not activating, or communication errors.

  • Communication Problems: Inability to communicate with HMIs, SCADA systems, or other devices.

  • Memory Errors: Program corruption, data loss, or inability to load programs.

  • Backplane Issues: Intermittent failures, communication errors between modules.

  • Overheating: Caused by fan failures, blocked ventilation, or component degradation.

  • Blown Fuses: Indicating a short circuit or overload condition.

  • Corrupted Firmware: Resulting in erratic behavior or complete failure.

  • PLC will not power on

  • PLC program errors

  • Communication faults

  • I/O module failures


Our GE Series 90 PLC Repair Process

Roc Industrial LLC follows a meticulous and proven repair process to ensure the highest quality GE Series 90 PLC repairs. Our goal is to get your equipment back in operation quickly and reliably.

  1. Free Evaluation and Quote: We start with a free evaluation of your faulty GE Series 90 PLC. Simply send us the unit, and our technicians will thoroughly assess the problem. We then provide you with a detailed quote for the repair, with no hidden fees.

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

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use state-of-the-art diagnostic equipment to pinpoint the root cause of the failure. We go beyond simply identifying the symptoms and delve into the underlying issues to ensure a lasting repair.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing faulty components with high-quality replacements. This approach allows us to offer cost-effective repairs and extend the life of your GE Series 90 PLC. We have thousands of parts in stock to expedite the repair process.

  5. Load Testing and Quality Checks: After the repair is complete, we subject the PLC to rigorous load testing and quality checks to ensure it meets or exceeds original performance specifications. This includes simulating real-world operating conditions to verify its reliability.

  6. Warranty-Backed Return and Support: All our GE Series 90 PLC repairs are backed by a comprehensive warranty. If you experience any issues after the repair, simply contact us, and we will promptly address your concerns. We also offer ongoing technical support to help you keep your automation systems running smoothly.


Nationwide Repair Services

Roc Industrial LLC provides GE Series 90 PLC repair services to customers nationwide. No matter where you are located, we can help you get your automation systems back online quickly. We serve customers in major metro areas, including New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller towns and rural areas across the country.


We offer fast shipping options and quick turnaround times to minimize downtime. Our experienced logistics team ensures your GE Series 90 PLC is transported safely and efficiently. Contact us today to learn more about our nationwide repair services.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your GE Series 90 PLC repair needs, you can be confident you are getting the best possible service. Here are just a few of the reasons why we are the trusted choice for industrial automation repairs:

  • 30+ Years of Experience: We have been providing industrial automation repair services for over 30 years, giving us the expertise and knowledge to handle even the most complex GE Series 90 PLC repairs.

  • Warranty-Backed Repairs: All our repairs are backed by a comprehensive warranty, giving you peace of mind knowing your equipment is protected.

  • Thousands of Parts in Stock: We maintain a large inventory of GE Series 90 PLC parts, allowing us to expedite repairs and minimize downtime.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we offer fast turnaround times, often completing repairs the same day.

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

  • Exceptional Customer Support: We are committed to providing exceptional customer support. Our friendly and knowledgeable team is always available to answer your questions and address your concerns.

Don't let a faulty GE Series 90 PLC slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable GE Series 90 PLC repair.

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