Repair
KEB
COMBIVERT F5/F6 · Servo Drives · Hamulce · servo motors
Repair of KEB devices — COMBIVERT inverters, servo drives, electromagnetic brakes. Diagnostics and tests.
Diagnostics included in repair
No-obligation quote
12-month warranty
Courier pickup from all of Europe
Post-repair testing
Service KEB — repair scope
Power section
IGBT, capacitor, rectifier, and power module replacement.
Control boards
CPU, flash memory, and communication circuit repair.
Interfaces and communication
Profibus, Profinet, EtherCAT, CAN port repair.
power supplies
Power supply circuit, DC/DC converter, and voltage regulator repair.
Mechanics and cooling
Fan, thermal paste, and gasket replacement.
Functional testing
Load testing, parameter verification, and test protocols.
Why EFIXLAB for repair of KEB?
- Experience — years of practice servicing KEB.
- EOL Devices — we repair discontinued devices.
- Load testing — every device is bench-tested before shipping.
- Fast turnaround — diagnostics up to 5 business days, repair 5–7 business days (after receiving necessary components). As a rule — time may be extended depending on component availability and repair complexity; deadlines agreed individually.
- 12-month warranty — on all performed work.
- Courier shipping — pickup and delivery from all of Europe.
Repair KEB: from request to collection
Request
online or by phone
Shipping
by courier
Diagnostics
included in repair
Quote
& approval
Repair
& testing
Return
with warranty
Report fault KEB — no-obligation quote
Provide the device model KEB and fault description.
Dziękujemy! We have received your request — we will get back to you shortly with a quote and timeline.Frequently asked questions
Repair cost is typically 20–60% of the price of a new device. We send a quote within 24h.
Diagnostics: up to 5 business days. Repair: 5–7 business days after quote approval and receiving necessary components. As a rule — repair time may be significantly extended depending on component availability and repair complexity. Deadlines are agreed individually with the client.
Yes — we specialize in repairing devices no longer available from the manufacturer.
By courier to our Warsaw address. Secure packaging required.
KEB Automation Drive Repair — COMBIVERT and F5/F6 Series
KEB Automation (Karl E. Brinkmann) manufactures frequency inverters, servo drives, and braking systems used extensively in material handling, elevator technology, wind energy, and general machine building. Their COMBIVERT F4, F5, and F6 series drives provide reliable motor control across a wide power range, while KEB clutch/brake controllers and safety brake modules protect personnel and equipment. KEB drives are particularly prevalent in European elevator installations and conveyor systems.
Common KEB drive failures include IGBT power module degradation from thermal cycling and load surges, DC link capacitor aging causing bus voltage instability, gate driver circuit failures, cooling fan bearing wear, and control board faults affecting digital and analog I/O or fieldbus communication. COMBIVERT F4 legacy drives are prone to electrolytic capacitor dry-out, while F5 series units may develop STO (Safe Torque Off) circuit issues. Braking module controllers can suffer from relay contact wear and power semiconductor burnout.
At EFIXLAB, we repair the full range of KEB drives and controllers. Our process includes power stage diagnostics with calibrated motor loads, gate driver signal analysis, DC bus capacitor ESR and capacitance measurement, control board functional testing, and safety circuit verification. We rebuild power stages with matched IGBT modules, replace capacitor banks, repair control PCBs at the component level, and verify all safety functions before returning repaired units.
KEB drive repair offers excellent value for elevator and conveyor operators where drive downtime directly impacts building access or logistics throughput. Typical repair savings of 40–60% versus new drive purchase make repair the economically sound choice. For legacy COMBIVERT F4 and early F5 drives no longer manufactured, our repair capability ensures continued operation. All KEB drive repairs include load testing and our 12-month warranty.