Repair
Danfoss VLT
VLT AutomationDrive FC302 · FC202 AQUA Drive · FC301 · FC280 Midi Drive · VLT 5000/6000 (EOL)
Service of Danfoss VLT frequency inverters — replacement of IGBT, DC-link electrolytic capacitors, repair of SMCB/MCO control cards, MCT10/SetupSoftware parameterization. No-obligation quote, 12-month warranty.
Diagnostics included in repair
Priority quote
12-month warranty
Courier pickup from all of Europe
Parameter backup MCT10
Service Danfoss VLT: FC302, FC202, FC301 and other series
VLT AutomationDrive FC302
Repair of FC302 inverters (0.37–1200kW). Replacement of IGBT, DC-link capacitors, service of SMCB cards and PROFIBUS/PROFINET/CANopen/DeviceNet interfaces.
VLT AQUA Drive FC202
Repair of FC202 units designed for pumps and fans (with pump pair operation, cascade pump control). Service of control cards and EtherNet/IP communication.
VLT 5000 / 6000 (EOL)
Repair of discontinued VLT 5001–5252 and VLT 6000 — EFIXLAB specialization. Regeneration of SMCB cards and electrolytic capacitors, replacement of IGBT.
SMCB / LCP control card
Repair of Control Board SMCB cards with CPU, Flash memory, I/O. Service of LCP (Local Control Panel) panels. Replacement of option modules.
VLT Midi Drive FC280
Repair of compact FC280 (0.37–22kW). Service of IGBT, internal power supply and communication ports. Fast diagnostics.
MCT10 parameterization
Parameter backup to .mct10 file before repair. After repair, full parameterization and load test. Danfoss MCT10 SetupSoftware.
Why EFIXLAB?
- VLT 5000/6000 (EOL) — discontinued models are our specialty. We have components for these devices and years of experience with this line.
- MCT10 backup — parameterization backup before repair and restoration after. QuickSetup saves all configuration parameters.
- Every power rating — we repair from compact FC280 to cabinet FC302 IP54.
- Load test — verification of drive responsiveness after repair on a test motor.
- Priority for stopped production — we react quickly to urgent requests.
- 12-month warranty — on all performed work.
How does repair work for Danfoss VLT?
Request
online or by phone
Shipping
by courier
Param backup
+ diagnostics
Quote
no obligation
Repair
& testing
Return
with warranty
Report fault Danfoss VLT — no-obligation quote
Provide the VLT model, power rating and alarm description. Our Danfoss specialist will get back to you with a diagnosis and quote.
Dziękujemy! We have received your request — our Danfoss specialist will contact you shortly.Frequently asked questions
Yes — that is our specialty. We have components for discontinued VLT 5000 and 6000 series. Repair is possible even when Danfoss declines support.
Yes — backup via MCT10 or via save to LCP Flash card. Parameters are restored after repair.
Diagnostics: 1–2 business days. Repair: 5–7 business days after approval and receiving necessary components. Express mode for stopped production. As a rule — repair time may be significantly extended depending on component availability and repair complexity. Deadlines are agreed individually with the client.
Danfoss VLT Drive Repair — VLT 5000, FC Series, and HVAC Drives
Danfoss VLT drives — including VLT 5000, VLT AutomationDrive FC 301/302, VLT HVAC Drive FC 100/102, VLT AQUA Drive FC 200/202, and the newer iC7 series — dominate HVAC and water/wastewater applications across Europe. Their robust design and application-specific firmware make them industry standards for building automation, pump control, and ventilation systems. However, decades of continuous operation eventually take their toll on even the most reliable drives.
Typical Danfoss VLT failures include DC link capacitor degradation (particularly in VLT 5000 legacy drives), IGBT power module failures from mains transients or motor short circuits, cooling fan failures leading to derating and thermal trips, control card malfunctions (LCP display failures, parameter memory corruption, communication option card problems), and soft charge circuit failures preventing drive startup. The VLT 5000 series is especially prone to electrolytic capacitor issues due to its age, while FC 301/302 drives may develop SMPS board failures.
At EFIXLAB, we provide comprehensive Danfoss VLT drive repair covering all series from legacy VLT 5000 through current FC and iC7 platforms. Our repair scope includes power stage rebuild with matched IGBT modules, full DC link capacitor bank replacement, control card repair including LCP display and communication module restoration, soft charge circuit repair, and cooling system overhaul. Every drive is tested under load with motor connection before return.
Danfoss drive repair offers excellent value — particularly for the larger FC 302 and former VLT 5000 drives where replacement costs are significant. Typical savings of 35–60% make repair the economically sound choice. For VLT 5000 and early FC-series drives that Danfoss no longer fully supports, our repair capability ensures continued operation of established installations. All Danfoss repairs include full functional testing and our 12-month warranty.