AC/DC Drive & VFD Repair

We provide expert component-level repair for all types of AC drives, DC drives, and VFDs, reducing your downtime and saving you from costly replacements.

VFD Repair Lab

Comprehensive Drive Repair Services

From fractional to high horsepower, our goal is to restore your equipment to original OEM specifications. We provide a fast, reliable, and cost-effective alternative to purchasing new, often expensive, drives.

  • Variable Frequency Drives (VFDs): Full repair and refurbishment, including replacement of power components (IGBTs, capacitors) and control boards.
  • DC Drives: Expert service for both regenerative and non-regenerative DC drives, including SCRs, field controllers, and firing circuits.
  • Vector Drives: Specialized repair and testing for high-performance open and closed-loop vector drives used in demanding applications.

Troubleshooting Common Drive Faults

Our certified technicians can diagnose and resolve any drive fault to get your machinery back up and running.

Overvoltage / Undervoltage

We diagnose and repair input power stages and bus capacitors to resolve persistent and damaging voltage faults.

Overcurrent / Overload

Our technicians find the root cause of overcurrent faults, from shorted IGBTs to faulty control logic and tuning issues.

No Output / Dead Unit

We perform component-level power supply repair and replace control board components to bring dead drives back online.

Control & I/O Errors

We repair logic boards and communication ports to resolve issues with control signals, feedback, and network connectivity.

Dynamic Load Testing for Guaranteed Reliability

A drive repair isn't complete until it's been tested with a motor under a dynamic load. Our custom-built load centers allow us to simulate your real-world application, ensuring your drive will perform flawlessly once it's re-installed in your facility.

  • Full-Horsepower Load Centers: Our load centers allow us to test repaired drives under full power and load conditions to verify performance.
  • OEM Parameter Reset: We reset all drives to factory default parameters, ensuring a clean slate for your specific application's programming.
Dynamic Load Testing

Our Drive Repair Process

1

Static & Dynamic Evaluation

We perform initial diagnostics and power up the unit to identify all faults in the power and control sections.

2

Component-Level Repair

Failed components are replaced, preventative maintenance is performed on high-failure parts, and the unit is cleaned.

3

Dynamic Load Testing

The drive is connected to a matching motor and runs under load for an extended period to ensure total reliability.

Select Your Brands for Repair

Click on the drive brands you need serviced to add them to your list.

Other OEM (Not Listed)
ABB
Allen-Bradley
Control Techniques
Danfoss
Emerson
Lenze
Parker
Schneider Electric
Siemens
Yaskawa

Get Your Drives Back in Service, Fast

All electronic repairs are backed by our industry-leading 24 Month In-Service Warranty. Contact us today for a free, no-obligation quote.

Request Your Free Quote