Is this an emergency? Give us a call!

Is this an emergency? Give us a call!

Is this an emergency? Give us a call!

Industrial electronics repair for machines, systems and production facilities

Multi-Brand Variable Frequency Drive Repair & Service

A defective variable frequency drive (VFD) can quickly lead to unplanned downtime, production loss, and immense time pressure in industrial manufacturing facilities. Especially for existing plants and legacy machinery, an immediate total replacement is not always the most economical or fastest solution. In many cases, professional variable frequency drive repair is the smarter path to restore plant availability rapidly while limiting capital expenditure.
retrofit GmbH specializes in the repair, overhaul, testing, procurement, and replacement of industrial electronics. This includes PLC control systems, printed circuit boards, HMI operator panels, industrial PCs, and particularly VFD repair for industrial applications. Our goal is to reduce downtime, safeguard production processes, and avoid costly new equipment purchases. We operate manufacturer-independently, practical, and tailored to the real-world needs of production managers, maintenance leads, plant managers, technical buyers, and service technicians.

Service technician inspects control board and power electronics of a variable frequency drive

Cost-effective & sustainable

Why frequency inverter repair makes economic sense

Frequency inverters are key components in industrial drive technology. They control speeds, optimize processes and make a significant contribution to stable system operation. If a unit fails, it often affects not just a single drive, but entire process chains. Fast frequency inverter repair is therefore a decisive factor for many companies in limiting downtime. Especially in existing system structures where replacement would entail design, electrical or software-related modifications, repairing drive inverters can be significantly more efficient than direct replacement.

Your advantages

Your advantages

Diagnostics & repair

Maintenance for frequency inverters & typical faults

mage technician back up parameters and configuration data on a frequency inverter via laptop or service interface

In everyday industrial operations, frequency inverters exhibit various fault patterns due to wear-related, thermal or electrical loads. Common causes include defective capacitors (aged components in power electronics), damaged power modules due to overload, as well as faults on control boards, communication errors, voltage spikes or incorrect parameters. As part of frequency inverter maintenance and repair, professional diagnostics of parameterization and cleaning of thermally relevant areas are therefore essential.

Simple and fast

Our repair & maintenance process

Successful frequency inverter repair requires a structured approach. At retrofit GmbH, the process is aligned with the actual requirements of the industrial service environment.

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Receipt & analysis

At the outset, a systematic visual and functional inspection is carried out. External damage, known fault patterns and initial indications of assembly or component damage are recorded.

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Repair

In the next step, the device is tested in detail. If faulty components are identified, defective parts such as capacitors, power modules or sections of the control electronics are replaced.

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Data migration

An important part of our scope of services is backing up existing configurations. Parameters, programs and settings are read out and transferred to the repaired device.

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Load test & handover

After the repair is completed, the device is thoroughly tested. This includes a test on the test bench under realistic load conditions before final shipment.

MANUFACTURER-INDEPENDENT SERVICE

Overview of manufacturers

Industrial companies work with a wide range of device generations, series, and system environments. That is why a manufacturer-independent service for variable frequency drives is particularly important in day-to-day operations. retrofit GmbH supports companies regardless of the specific device type.

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Image defective frequency inverter on a workbench with opened electronics AI generated perplexity
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RETROFIT BENEFITS

Fast, safe, carefree

The combination of frequency inverter electronics repair and technical data transfer is particularly valuable for companies that rely on stable processes and a rapid resumption of production.

We will advise you

Not every failure requires an immediate replacement unit. Frequency inverter repair is often advisable when the existing device is precisely integrated or delivery times for replacement units are problematic. We advise you in a manufacturer-independent and solution-oriented manner.

Variable frequency drive during data transfer and parameter backup in the test bench lab

Connection & continued use

when mechanical or electrical interfaces need to be retained and older machines are to continue operating reliably.

Parameterization & protection

when parameters and programs must be transferred to avoid misconfigurations after reinstallation.

Programming & parameterization of necessary data sets

We create and optimize the necessary data sets to keep your systems running smoothly.

Key information at a glance

FAQ: Frequency inverter repair

When is it worthwhile to repair frequency converters?

Repair is particularly worthwhile when the device is firmly integrated into an existing system, parameters need to be transferred, or replacement would cause high follow-up costs. Even with older machines, frequency inverter repair is often economically viable.

Typical faults include defective capacitors, damaged power modules, faults on control boards, contamination, thermal issues, as well as damage caused by voltage spikes or incorrect parameterization.

Yes, where technically possible. Parameters, programs and settings can be backed up and transferred to the repaired device or a replacement device. Especially in existing systems, this data migration is often an important part of the solution.

Yes. After repair, a technical inspection is carried out. This may also include a test under load conditions to ensure the device’s function and resilience before it is returned.

No. In addition to frequency inverter service, retrofit GmbH also supports PLC controllers, industrial panels, HMIs, industrial PCs, circuit boards and other industrial electronics.

Yes. If repair is not the best technical or economic solution, retrofit GmbH also supports replacement and the procurement of suitable industrial electronics.

Is your variable frequency drive faulty or causing problems in your plant? retrofit GmbH diagnoses the fault, assesses whether repair is viable, and repairs the unit with your approval. Send us the device details for an initial assessment.

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retrofit gmbh

Robert-Bosch-Strasse 4
D-71154 Nufringen
Deutschland