AC Drive Repair Services

AC Drive Repair Services

When an AC drive or VFD fails, every hour of downtime costs you money and throws your production schedule off track. Our North America-based repair facility provides fast, reliable AC drive repair and VFD repair for customers across North America, combining component-level diagnostics with full-load testing so your drive goes back into service with confidence.

Whether your plant is in Toronto, Houston, Calgary, Chicago, or anywhere else in Canada or the United States, we handle inbound shipments daily and turn urgent repairs around quickly to keep your lines moving.

• Cost-effective drive repair that typically saves 40–60% versus replacement
• Full-load testing and OEM-spec procedures before your drive ships back
• Rush and emergency options available for critical breakdowns
• AC, DC, and servo drives from all major manufacturers serviced in-house

Need fast AC drive repair? Call 877-742-3665 or request a free evaluation today. We’ll inspect your drive, identify the root cause of failure, and provide a detailed, no-obligation repair quote so you can decide whether to repair or replace.

Why facilities across North America choose us for AC drive repair services

Plants and OEMs across Canada and the USA rely on us because they need more than a quick board swap—they need a partner who can keep their drives running in harsh, real-world environments.

• North America-wide service: Ship your drive from anywhere in Canada or the United States; our team repairs and returns it ready for production.
• Industrial-grade capabilities: From small HVAC drives to high-horsepower process lines, we repair AC, DC, VFD, and servo drives used in manufacturing, mining, oil and gas, water/wastewater, and more.
• Component-level repair and refurbishment: We replace weak capacitors, fans, and other life-limited components—not just the obvious failed parts—to extend drive life and reduce repeat failures.
• Proven quality: Every repaired drive is cleaned, tested under load, and documented before shipment, following rigorous, repeatable procedures.

AC drive, VFD, and inverter repair – same service, different names

AC drives go by many names—variable frequency drives (VFDs), inverters, variable speed drives, and motor drives—but they all serve the same purpose: controlling motor speed and torque by varying output frequency and voltage.

If your equipment uses any of the following, we can help:

• Standard AC drives and VFDs for fans, pumps, conveyors, blowers, and compressors
• High-performance AC servo drives and spindle drives for CNC machines and robotics
• Regenerative and four-quadrant drives used in cranes, winders, elevators, and high-inertia applications
• AC/DC drives and specialized motor drives from major OEMs

From Allen-Bradley and ABB to Yaskawa, Magnetek, KEB, Siemens, Danfoss, and other leading brands, our technicians have the test equipment, documentation, and experience to troubleshoot and repair your drive back to reliable operation.

Our AC drive repair process

Once we receive your drive at our facility, it goes through a structured repair workflow designed to find the root cause of failure—not just clear the fault code.

1. Incoming inspection and data capture
   We document model details, application, and reported symptoms, then perform an initial visual and electrical check.
2. Detailed diagnostics
   Technicians review fault history, test power sections, capacitors, IGBTs, gate drivers, control boards, and cooling systems using specialized drive test equipment.
3. Component-level repair and refurbishment
   We replace failed components, life-limited capacitors and fans, and any parts with known high failure rates for that series.
4. Full functional testing
   The repaired drive is powered, loaded, and verified for stable operation, correct parameter behavior, and communication including feedback with external controls where applicable.
5. Final QA and shipment
   After passing all tests, the drive is cleaned, packed, and shipped back to your facility anywhere in Canada or the USA, with test results and warranty information.

Brands, drive types, and industries we support

We repair a wide range of AC drive technologies used in industrial and commercial applications:

• Variable frequency drives (VFDs) for induction motors
• AC servo drives and spindle drives for motion control and CNC
• Regenerative and four-quadrant drives
• General-purpose inverter and motor drives
• AC and DC drives in mixed fleets

Typical brands we see include Allen-Bradley, ABB, Yaskawa, Magnetek, KEG, Siemens, Schneider Electric, Danfoss, Eaton, Mitsubishi, and many others.

Our repair experience covers a broad range of industries and applications, including:

• General manufacturing and OEM equipment
• Elevators, Escalators and Construction Hoists
• Metals, mining, and aggregates
• Oil and gas, chemical, and petrochemical
• Food and beverage processing
• Water and wastewater treatment
• Municipal and government

If you do not see your brand or industry listed, contact us—we likely repair it.

Preventive maintenance and AC drive reliability

Repairing failed drives is only part of the picture. A proactive maintenance program helps you avoid unexpected failures and extend the service life of your VFD fleet.

Typical maintenance intervals range from quarterly visual inspections in harsher environments to annual comprehensive checkups in cleaner, controlled spaces. A thorough preventive maintenance visit may include:

• Visual inspection for bulging or leaking capacitors, burn marks, and damaged components
• Verification of cooling fan operation and clear airflow paths
• Cleaning of drive interiors to remove dust, oil, and conductive contamination
• Torque checks on power and control terminations
• Power quality checks and basic thermal scans where applicable

Your in-house team can usually handle basic inspections and cleaning. More advanced tasks—such as capacitor and IGBT evaluation, complex fault tracking, and full functional testing—are best handled by specialists with the right tools and fixtures.