Drive tripped and won’t reset? We repair industrial VFDs.
Component-level repair of variable-speed drives, inverters and soft starters across all major brands — ABB, Danfoss, Yaskawa, Siemens, Schneider, Lenze, SEW, Vacon, Mitsubishi and Control Techniques. IGBT failures, blown DC-bus caps, dead control boards, earth faults. Repair is usually days and a fraction of replacement cost.
The drive failures we see on the bench
A tripped drive is rarely scrap. Most failures come down to a handful of repairable causes — we isolate the fault at component level, repair it, and load-test the drive before it goes back.
IGBT & power-stage failures
Overcurrent trips, shorted output, blown IGBT modules and gate-driver damage — often after a motor or cabling fault. We replace the power stage and verify before return.
DC-bus capacitor failure
Bulging or dried-out bus caps causing overvoltage/undervoltage trips, ripple and nuisance faults — especially on drives over 7–10 years old. Full cap-bank replacement.
Dead control boards
No display, won’t power up, won’t accept keypad or comms. Control-board and supply-section repair at component level rather than a full board swap.
Comms & fieldbus faults
Profibus, Profinet, EtherCAT, Modbus and EtherNet/IP option-card failures, broken comms ports, drives dropping off the network.
Cooling & thermal trips
Failed cooling fans, overheating trips, thermal-sensor faults and heatsink issues causing the drive to fault out under load. Fan replacement and thermal repair.
Rectifier & soft-starter faults
Input rectifier/diode-bridge failures, pre-charge circuit faults, and soft-starter SCR and control-board repair across the major brands.
All the major drive makes
ABB ACS · Danfoss VLT · Yaskawa · Siemens Sinamics & Micromaster · Schneider Altivar · Allen-Bradley PowerFlex · Lenze · SEW Movitrac / Movidrive · Vacon · Mitsubishi · Control Techniques Unidrive. Don’t see yours? Send us the model and fault code and we’ll tell you straight whether it’s worth repairing.
How a drive repair gets handled
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Call the engineering line first
Tell us the make, model and fault code. We’ll triage on the phone — sometimes the fault is the motor or cabling, not the drive, and we’ll save you the shipment.
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Ship it in (or drop it off)
Tracked courier to our Mullingar workshop. Mark production-critical units priority and we’ll handle them first on arrival.
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Free assessment & fixed quote
Visual inspection, controlled power-up, fault confirmation, then a fixed-price quote in writing against your PO reference before we commit any repair.
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Repair, load-test & return
Component-level repair, full functional test under simulated load on the bench, returned with a written repair report and 12-month warranty. Standard 5–10 working days; rush on request.
Real engineers. Real workshop. Honest pricing.
Load-tested before return
Every drive is run under simulated load on the bench before it ships back — not just powered up. You get a drive that’s proven to work, not one that’s "probably fine".
Rush turnaround
Standard 5–10 working days; rush on request for units that are stopping your line — often 24–72 hours on common drive faults. Quoted upfront.
NDA & PO procurement
NDA available, PO numbers in your reference format, framework-agreement quoting. See our business page for the procurement side.
12-month warranty
Every drive repair backed for 12 months, with a written repair report for your maintenance file.
About drive repairs
My drive trips on overcurrent the moment it starts — is it repairable?
Usually, yes. An instant overcurrent trip on start typically means a shorted IGBT or output stage. That’s a standard component-level repair for us — we replace the power devices and load-test before return. We’ll also flag if the fault looks like it came from the motor or cabling so it doesn’t happen again.
Is it cheaper to repair a VFD than replace it?
Almost always — a repair is typically a fraction of the cost of a new drive, with no programming or commissioning to redo. For obsolete drives where a like-for-like replacement isn’t available, repair may be the only realistic option.
Which drive brands do you repair?
All the major makes — ABB, Danfoss, Yaskawa, Siemens, Schneider, Allen-Bradley, Lenze, SEW, Vacon, Mitsubishi and Control Techniques, among others. Send us the model and fault code.
How fast is a drive repair?
Standard turnaround is 5–10 working days. For production-critical drives we offer rush turnaround — often 24–72 hours on common faults — quoted upfront.
Is there a warranty on the repair?
Yes — 12 months on every drive repair, with a written report listing what we found, what we replaced and the before/after load-test results.
More industrial repairs
See our industrial electronics repair overview, or jump to Siemens PLC & drive repair, Allen-Bradley / Rockwell repair, or HMI & touchscreen repair.
What Irish businesses say about working with us
Drive down? Talk to an engineer.
Call the engineering line first. We’ll triage, prioritise and get you a written quote fast. Standard turnaround 5–10 working days; rush on request.